Hi,
I'm trying to run through a few charge cycles with my new N5100 but when it gets to 5% power it turns off the brightness (i.e. no backlight) and the brightness setting is disabled, meaning that I can barely see the screen.
Is there any way of stopping this automating dimming so that the brightness remains on all the way down to 0%?
Thanks,
Coj
Thank you very much indeed!
That "feature" is bugging me beyond belief!
How on earth is it possible that Samsung is implementing this without an option to disable it?!?
I mean, it's a business device with a battery big enough to have 5% equal more than 30 minutes of screen time.
30 minutes can be quite crucial if I'm in the middle of a meeting or trying to figure out my train departure time.
You can't see a thing if the screen is dimmed down to 5%!
Any workaround and/or fix is greatly appreciated!
Regards,
Yoko
Yokobln said:
Thank you very much indeed!
That "feature" is bugging me beyond belief!
How on earth is it possible that Samsung is implementing this without an option to disable it?!?
I mean, it's a business device with a battery big enough to have 5% equal more than 30 minutes of screen time.
30 minutes can be quite crucial if I'm in the middle of a meeting or trying to figure out my train departure time.
You can't see a thing if the screen is dimmed down to 5%!
Any workaround and/or fix is greatly appreciated!
Regards,
Yoko
Click to expand...
Click to collapse
I think this is when the power saving mode is enabled automatically. Try turning it off in the settings. This is how it is on my note 2.
emwno said:
I think this is when the power saving mode is enabled automatically. Try turning it off in the settings. This is how it is on my note 2.
Click to expand...
Click to collapse
Nope! I enabled everything, disabled power saving just to try to get the unit to turn off to complete the discharge cycle but the screen remained dimmed...it's really frustrating.
Im no expert, but isn't that bad for these batteries? I'm pretty sure doing that does more harm than good.
Sent from my SGH-T889 using Xparent Skyblue Tapatalk 2
Warrior1975 said:
Im no expert, but isn't that bad for these batteries? I'm pretty sure doing that does more harm than good.
Sent from my SGH-T889 using Xparent Skyblue Tapatalk 2
Click to expand...
Click to collapse
Yes, you are correct. What these people are trying to do is not only a waste of time, but directly harmful to the battery chemistry.
So what constitutes a full discharge cycle then? I bow to your superior knowledge!
Sent from my GT-N5100 using Tapatalk HD
cojones said:
Nope! I enabled everything, disabled power saving just to try to get the unit to turn off to complete the discharge cycle but the screen remained dimmed...it's really frustrating.
Click to expand...
Click to collapse
There is no benefit to discharging to shutoff. If you are trying to get the battery meter as accurate as possible, just discharging to 10, or even 20% is plenty. The meter is not all that accurate under the best or circumstances to justify going anywhere below 10%.
Charge to 100%, let it sit on the charger for a while, to make sure you get the saturation charge. Then use until 10 or 20%. That is as much of a "full discharge cycle" you need for the purpose of calibrating the battery meter.
Also, discharge until the device shuts off, and you might find the device won't take a charge or power on anymore. The safety circuit is supposed to prevent the battery from over-draining (voltage below changeable threshold). But its not failsafe. Somewhat rare, but I've seen it happen to a number of XDA users on various Android devices. Usually, charging overnight will bring the battery back. Sometimes . . . not.
cojones said:
So what constitutes a full discharge cycle then? I bow to your superior knowledge!
Sent from my GT-N5100 using Tapatalk HD
Click to expand...
Click to collapse
No reason to get all sarcastic. This is a place to learn, lots of people are very knowledgeable, most more than the next. You think your way is right, then continue. Or perhaps, take a step back and maybe learn a little more before doing things.
Sent from my SGH-T889 using Xparent Skyblue Tapatalk 2
We could get deep into LiIon or LiPo chemistry if we wanted to, but just to clear up an thing or two....
- I fully expect a device in that price range from a manufacturer like Samsung to not take *any* damage if I discharge the tablet. I am fully aware of the damage that can be done to these battery cells by deep-discharging them as I use them on a regular basis in RC aircrafts. I also know that there is a quiet sophisticated dis/charge protection circuit built in any (serious) device that is using these type of cells. The battery aswell as the notebook / tablet have those built in.
It should not not be possible to deep-discharge any device from a reputable company unless you let it sit on your desk for months without charging it at all. It's shut of by the controller long before that happens.
- I fully expect to be able to use all battery power until the above mentioned controls kick in and power the unit down hard. This goes for any notebook, mobile phone or tablet. There are many devices on the market that do not force you to use the device for half an hour at 5% brightness before shutting down. Why? The damage (if there was any) would be the same. Half an hour at 5% or 7 minutes at 100% brightness ..... the battery doesn't care.
- Unfortunately we live in a world where we exchange our gadgets every 2 years. What do I care if the battery performance degrades to 75% three years from now. Samsung certainly doesn't, or they would have made the battery replaceable in the first place (which I would appreciate a lot, even if that came with 2mm extra thickness + 35 grams of additional plastic)
Sorry for typos... me = german
Regards,
Yoko
Warrior1975 said:
No reason to get all sarcastic. This is a place to learn, lots of people are very knowledgeable, most more than the next. You think your way is right, then continue. Or perhaps, take a step back and maybe learn a little more before doing things.
Sent from my SGH-T889 using Xparent Skyblue Tapatalk 2
Click to expand...
Click to collapse
I was not being sarcastic. You read it that way and if you took it as sarcastic then that says more about you than me. Do not pass judgement that ultimately is futile and unhelpful to all.
I was being genuine when I say I bow to your (pl.) superior knowledge...I really do. The reason I'm on here is to learn in order to get the best experience. It just so happens that many years ago when I started, the batteries required regular full discharge cycles, so that was my current understanding until guidance was provided to change that.
I apologize for my statement, I took it the wrong way.
Sent from my SGH-T889 using Xparent Skyblue Tapatalk 2
Yokobln said:
We could get deep into LiIon or LiPo chemistry if we wanted to, but just to clear up an thing or two....
- I fully expect a device in that price range from a manufacturer like Samsung to not take *any* damage if I discharge the tablet. I am fully aware of the damage that can be done to these battery cells by deep-discharging them as I use them on a regular basis in RC aircrafts. I also know that there is a quiet sophisticated dis/charge protection circuit built in any (serious) device that is using these type of cells. The battery aswell as the notebook / tablet have those built in.
It should not not be possible to deep-discharge any device from a reputable company unless you let it sit on your desk for months without charging it at all. It's shut of by the controller long before that happens.
Click to expand...
Click to collapse
I'd say that the danger is less about actual chemical damage to the battery; and more (as I've previously mentioned) that the voltage will drop too low for the battery to take a charge from the standard charger.
In theory, the protection circuit is meant to prevent this. Unfortunately, its not failsafe (and nothing ever is) in reality. I've seen it happen plenty of times before on other Android devices, and good quality ones (HTC One X, Desire Z, etc.) where folks have let the battery drain to shutoff, and the battery will no longer take a charge. I wouldn't call it "common", really more of a rarity. But of course, there is always that possibility that Murphy's Law is going to decide that you are "that guy", and than that really sucks.
In some of these instances, letting the device sit on the standard wall charger overnight will get it working again. But sometimes, this doesn't work. In that case the solution was a battery meter with "boost" function which out get the battery back up to the proper voltage. But this equipment is typically only found in specialized repair shops. Buying a new battery was a simple and reletively cheap alternate fix on some past devices. But since the battery is not meant to be customer replaced on the Note 8, this is less of a feasible fix.
Again, this issue in uncommon, but it exists. We all let our devices drain too low by accident, at one time or other. But why tempt fate and probability? There is simply no good reason to drain the device to shutoff on a frequent and intentional basis.
One of my buddies is waiting on a new Nexus 7 tablet because he accidentally let it drain completely and it wont take a charge.
Sent from my SAMSUNG-SGH-I727 using xda premium
Solution to the OP?
For me, at least, this app works:
https://play.google.com/store/apps/details?id=mobi.pruss.superdim
^second, works great. sucks we have to work around but that app works great for me (note 2).
Only bug is when you lock the screen and unlock you have to re-enable rootdim again. Even the "lock" feature doesnt seem to work against the systems 5% force dim.
I found a way to solve the problem using the app llama. Create 2 events:
1: Conditions = battery below 6% AND not chargin; action = screen brightness = 100%
2: conditions = battery above 5 OR charging;
Action = screen brightness = auto.
Works for me with Sgs5mini and 4.4.2 stock rom, rooted
Regards
This is an old thread, but I needed to comment in case someone else was wanting to discharge their zerolemon 100000mah battery and not have the screen or not be able to use their camera. Go to setting, developers options and click stay awake... This works! I've been trying for a while to figure out how to use my phone for the days it takes to run the battery out on this large capacity battery, per the instructions from zerolemon and finally found it by accident.
Related
Could someone please develop a good app that would enable the battery to be drained as much as possible and to charge slower so we could all properly calibrate our batteries?
Do we really need this since it's a Li-ion battery? I know Ni-Mh and Ni-Cad has memory effect, but not on the Li-Ion battery.
I was just wondering the same thing today....simply because there seems to be several different methods to do it. Some say charge 8 hours, turn off, charge and hour, unplug, turn on charge 10 minutes. Then other methods say to do something different....be nice to have an app to walk you through different methods so you know step by step your doing it right
I calibrated mine last night and I'm going to get about 18 hours if not more from it....before yesterday I was getting 9.
The ONLY other different I did was make some profiles on CPU but I cant imagine it would make that much of a difference. I bet its a mix of both
deonjahy said:
Could someone please develop a good app that would enable the battery to be drained as much as possible and to charge slower so we could all properly calibrate our batteries?
Click to expand...
Click to collapse
That is to funny I was just saying to my wife the other day that I should make one of these programs seeing that there are none already. I hate having to manually kill my battery every night before I charge it again.
Is it needed? It depends on your school of thought, some say yes, some say no. All I know is that on the few devices I have had in the past, if I constantly plug them in to "top them off" then the battery never ends up lasting very long after a few months of doing that. So I am a believer in killing the battery before charging on devices like these.
So the bottom line is if there is a desire for this, I may try to put an app together for it, as I know myself I am interested I just didn't think many others would be.
All the battery calibration tools, are basically deleting the file... right?
Is it that hard to boot into recovery and wipe battery stats?
deonjahy said:
Could someone please develop a good app that would enable the battery to be drained as much as possible and to charge slower so we could all properly calibrate our batteries?
Click to expand...
Click to collapse
I think the second part has to do with hardware. The phones hardware just doesn't have trickle charge implemented and instead lets it drop back down to 90% then starts charging it again.
As for the second part, it came on our phones, even has a default widget. 4G
paulieb81 said:
That is to funny I was just saying to my wife the other day that I should make one of these programs seeing that there are none already. I hate having to manually kill my battery every night before I charge it again.
Is it needed? It depends on your school of thought, some say yes, some say no. All I know is that on the few devices I have had in the past, if I constantly plug them in to "top them off" then the battery never ends up lasting very long after a few months of doing that. So I am a believer in killing the battery before charging on devices like these.
So the bottom line is if there is a desire for this, I may try to put an app together for it, as I know myself I am interested I just didn't think many others would be.
Click to expand...
Click to collapse
Um... actually that is (by most accounts) bad for Li-Ion. You want to AVOID completely draining them. All of this stuff is more art than science, but I have way more often heard that completely draining LI batteries is bad. What kills them is the number of cycles they have been through (like -25 +25, -25 +25, -50 +50 would be a full cycle).
You do however want to give them a full up down cycle once in a while (maybe every 1-3 months) for calibration.
Then again, as I said, it is more art than science, and I have heard your method as being better, but the not draining argument seems to be the vast majority.
I'll try to do a little look-see and update this or repost if I find any stronger evidence.
the thing about my phone and battery that ALWAYS baffled me was i would plug it in at night be it at 10% or 22 i would leave plugged in while slept i would wake up unplug and look at battery percentage and it would be like 95.....no other phone has even unplugged and dropped 5 percent by doing nothing????
turn your brightness to 100% and change it so that it never turns off; use wifi tether and play a 720p movie at the same time; oc your kernel to it's highest stable frequency. it'll drain pretty quickly.
I know I might get flamed for this....
Apple suggests, with their laptops, to once a month or so, run the battery completely down. Then let the battery cool down for a little bit. Then give it a full, uninterrupted, overnight charge. I forget if they said to repeat this a second time, then you're good.
This is all from memory of me reading this a couple years ago or so, so our might not be verbatim. Their laptops use lithium ion technology...
(and they used to blow up and melt down too!) Lol!
Wrong word choice and misspelling courtesy of swype.
mykeldrip said:
the thing about my phone and battery that ALWAYS baffled me was i would plug it in at night be it at 10% or 22 i would leave plugged in while slept i would wake up unplug and look at battery percentage and it would be like 95.....no other phone has even unplugged and dropped 5 percent by doing nothing????
Click to expand...
Click to collapse
That's because the phone stops charging when it reaches 100%, and runs off of battery probably until it reaches in the low 90s, then charges again. You won't ever notice this because the light will always be green. However, you'll notice that unplugging it a few moments after it turns green, the battery will stay anywhere from 100%-98% for a while. At least on my phone it does.
Is there any way to make this program "auto run" during sleep so it can do everything it needs to do during the night charge (similar to quickpull for blackberry)
laydros said:
I think the second part has to do with hardware. The phones hardware just doesn't have trickle charge implemented and instead lets it drop back down to 90% then starts charging it again.
As for the second part, it came on our phones, even has a default widget. 4G
Um... actually that is (by most accounts) bad for Li-Ion. You want to AVOID completely draining them. All of this stuff is more art than science, but I have way more often heard that completely draining LI batteries is bad. What kills them is the number of cycles they have been through (like -25 +25, -25 +25, -50 +50 would be a full cycle).
You do however want to give them a full up down cycle once in a while (maybe every 1-3 months) for calibration.
Then again, as I said, it is more art than science, and I have heard your method as being better, but the not draining argument seems to be the vast majority.
I'll try to do a little look-see and update this or repost if I find any stronger evidence.
Click to expand...
Click to collapse
I am by no means an expert so if you find any reliable info on this and can link us to read, I would love to learn more. All I know is that it is commonly said to drain rechargeable batteries and that I have seen that topping them off very often does lead to battery life degradation.
Tyzing said:
Is there any way to make this program "auto run" during sleep so it can do everything it needs to do during the night charge (similar to quickpull for blackberry)
Click to expand...
Click to collapse
There is no need to fully drain the battery. Its purpose in calibration is to configure the software that is correlating voltage to percentage charged. That's all. Regarding the old Apple advice, that is doing the same thing. It will not affect the hardware.
Now, what WILL affect the hardware is charging itself. Every charge/discharge cycle will reduce the total capacity of the battery. This is why the EVO will not cycle on it's own until 10% discharged. It's improving the overall battery life by that restriction.
In short, you will save money overall by getting a higher capacity battery that you don't force to charge too often. Draining your battery does nothing but give you peace of mind and it only really needs recalibrating when it's total capacity has been reduced which isn't often. 3-6 months.
Sent from my PC36100 using XDA App
herbthehammer said:
I know I might get flamed for this....
Apple suggests, with their laptops, to once a month or so, run the battery completely down. Then let the battery cool down for a little bit. Then give it a full, uninterrupted, overnight charge. I forget if they said to repeat this a second time, then you're good.
This is all from memory of me reading this a couple years ago or so, so our might not be verbatim. Their laptops use lithium ion technology...
(and they used to blow up and melt down too!) Lol!
Wrong word choice and misspelling courtesy of swype.
Click to expand...
Click to collapse
Yeah except that's not a good idea, it will kill the weak cells.
I understand. Still think it would be useful if it would do the "juice until LED changes" method while sleeping though
paulieb81 said:
So the bottom line is if there is a desire for this, I may try to put an app together for it, as I know myself I am interested I just didn't think many others would be.
Click to expand...
Click to collapse
I'm interested!
Btw - what are the charging calibrations people are using? Are you seeing one working better than another?
Im a noob, so take what I say worth a grain of salt but yesterday I did the standard method where you fully charge...turn off...plug back in until led changes green and do it a few times.
I went from 9 hours to 17 hours with no other changes except a few profiles in setCPU.
I did this just last night so my results are fresh.
Tyzing said:
I calibrated mine last night and I'm going to get about 18 hours if not more from it....before yesterday I was getting 9.
The ONLY other different I did was make some profiles on CPU but I cant imagine it would make that much of a difference. I bet its a mix of both
Click to expand...
Click to collapse
A few SetCPU profiles is all it takes to see a dramatic increase in battery life, especially while screen off. If you disable it I bet whatever gain you think was from 'calibrating' it disappears.
Will "trickle-charge" kernels end up damaging our phones? *UPDATE: 8 CASUALTIES!*
I installed one of these amazing new kernels the other day and loved it. I was even able to keep 100% for about 30 minutes of usage and I was amazed. Yet today I checked Phandroid and an article from an XDA contributer came up:
http://phandroid.com/2010/12/25/you...is-lying-to-you-and-its-not-such-a-bad-thing/
In the article he explained (from what I understand) that he thinks knows it is a GOOD THING that phones aren't programmed to allow the battery to keep charging at the real 100% because it would end up damaging the battery in the end, much like how many of the early cell phone batterys would get damaged.
Until I find out the answer I (sadly) switched back to my old kernel, as I would rather be safe than sorry, at least until I find out for sure.
Any responses?
UPDATES:
_______________________________________________________________
CASUALTY LIST (please PM me any casualties, the list seems to be growing in numbers rapidly)
_______________________________________________________________
Battery Emitting "Smoke" : http://forum.xda-developers.com/showthread.php?t=904577
Battery Failure during Trickle Charge: http://forum.xda-developers.com/showthread.php?t=900412
SBC killed my battery: http://forum.androidcentral.com/htc-evo-4g-roms-hacks/51972-sbc-killed-my-battery.html
MIUI + Savage = dead battery http://forum.xda-developers.com/showpost.php?p=10422140&postcount=9 and http://forum.xda-developers.com/showpost.php?p=10432778&postcount=139
ANOTHER dead battery http://forum.androidcentral.com/htc-evo-4g-roms-hacks/51972-sbc-killed-my-battery-2.html#post517436
Battery loses charge after extended time with sbc kernel http://forum.xda-developers.com/showpost.php?p=10431788&postcount=49
Another one bites the dust... http://forum.xda-developers.com/showpost.php?p=10457753&postcount=162
COUNT ME IN http://forum.xda-developers.com/showpost.php?p=10469184&postcount=174
Current Count: 8
___________________________________________________________________
Various Dev Reactions:
Ziggy's editorial on WHY these kernels shouldn't exist and are dangerous (written before the new epidemic of dead batteries):http://www.ziggy471.com/2011/01/02/overcharging-batteries/
Netarchy's post explaining why he's REMOVING all SBC kernels from his page: http://forum.xda-developers.com/showpost.php?p=10421166&postcount=6185
___________________________________________________________________
THIS IS A CALL TO ALL ROM/KERNAL DEVELOPERS: Please don't include this feature in our favorite roms. I have been having to switch Kernels on my latest roms becuase I don't want to risk killing my battery (and that is a PAIN)
My $0.02:
I trust these developers on this site ALOT. What they have managed to do with the software is amazing. However, software is software. These trickle-charge kernels were amazing SOFTWARE-WISE. However, the effects of charges on batteries are not your specialty, so while it may be amazing that you all developed these kernels, there effect on the battery is not alright. I (sorry) trust an industry of battery/software engineers over some basement-developers who like pushing the limits (Pushing the limits is awesome, just not when it comes to batteries lol)
hmsheen10 said:
I installed one of these amazing new kernels the other day and loved it. I was even able to keep 100% for about 30 minutes of usage and I was amazed. Yet today I checked Phandroid and an article from an XDA contributer came up:
http://phandroid.com/2010/12/25/you...is-lying-to-you-and-its-not-such-a-bad-thing/
In the article he explained (from what I understand) that he thinks knows it is a GOOD THING that phones aren't programmed to allow the battery to keep charging at the real 100% because it would end up damaging the battery in the end, much like how many of the early cell phone batterys would get damaged.
Until I find out the answer I (sadly) switched back to my old kernel, as I would rather be safe than sorry, at least until I find out for sure.
Any responses?
Click to expand...
Click to collapse
Yup, there is a reason why all the phone makers have them charge like that and there is also a reason why putting custom roms on your phone voids your warranty.
Remember hearing about all those ipod and lap top batteries that liked to blow up?
Edit: he's also forgetting that when the battery gets close to full the voltage starts changing less and less, to the point that it is nearly impossible to accurately tell how much battery you have when it is over 80% full
Sent from my PC36100 using XDA App
i knew it was too good to be true :\
yea i get amazing battery life with this trickle charging only when i leave it on charger for around 7+ hours. Sounds like i should stop using that then damn
Edit: didnt mean to quote anyone
From what I read the article didnt reveal any specifics to if and when it will damage a battery.The article seemed to suggest that because battery manufacturers changed how they implimented charging it means that trickle charging is bad. It does not have enough variables in this observation to come to any conclusion. If advancements have been made in the battery industry you could also come to the conlcusion that trickle charging is or would be ok.
I am not trying to go against the article or this thread but simply wondering if after a thorough evaluation of the battery capacity after say 3 months using trickle charging and one without trickle charging we give an conclusion.
If need be I will run my phone with trickle charging, will someone else volunteer there phone for research?
For the extra bump I get every day now Ill by a new battery for 15 bucks a little more often. Its worth it for me YMMV
Yep, trickle charging is bad for the battery. Rememebr when all those laptop batteries were catching on fire? Same thing could potentially happen if your battery is not charged properly. They charge the batteries the way they do for a reason. That reason is relatively long battery life and safety.
Here is a good article on the subject.
I think that the makers of all these new kernels than should put up a warning specifically pertaining to the dangers of the kernel
Sent from my EVO
Quoting ms79723 :
Will this damage my battery?
This charging method doesnt damage the batteries at all. It shouldnt. Because our batteries dont even charge up to 4.2V without the tweak. They charge up to 4.2V the first charge, then drop all the way down to 4.08V or something and then does these weird short burst chargers to 4.1-4.125V. Thats why there's the rapid drop in the morning. Because your voltage is actually at 4.125V and that's not 100%. So with this tweak, the charger keeps charging until you're at 4.2V (or the maximum voltage your battery can get to) and then it trickle chargers while at that voltage. The charger itself never turns off. Thats not a bad thing. Because as you reach your actual voltage, the mA decreases. Which is why our phones will never be damaged. You ever want to know why its really easy to charge from 50-80% but the charge from 90-100% seems to take so long? Its because from 50% the mA going into the phone is in the 600's. Once it reaches 90%, the mA is around 150 and once it reaches 95% you're looking at 90mA. The phone when absolutely idle uses anywhere from 60-120mA, even when on the charger. So charging from 90% to 100% takes longer becaus the mA going into the phone isnt always higher than the mA you're losing. This is the same with charging past 100%. As you leave the phone on the charger with this tweak, you're mA will decrease from 50mA all the way down to 2mA overnight. But on the charger you're losing about 30-60mA already, so you'll never overcharge the battery, in best case scenarios, you'll just maintain the voltage of 4.2 or around 4.2V.
Click to expand...
Click to collapse
Unfortunately, if you read their thread, they say they disagree that any harm is being done.
Personally, I am not a battery expert, though I do have some experience with them in the EV car field, but my understanding is these batteries will be damaged if continuously held at a full charge. That is why the manufacturers design the system to full charge, then discharge to approximately 90% and then charge again, continuously cycling the battery.
From what I have read and from talking to the guys who design Li-ion batteries, they say that prolonging the time that the battery is at full charge significantly reduces battery life. Over time it can also lead to overheating resulting in an unsafe battery. For those reasons, virtually all properly designed charging circuits for Li-ion batteries are set up to let the battery sit at full charge for the shortest time possible.
Vann's quote from the kernel thread proves my point, what it appears they are trying to do is hold the battery fully charged while it is on the charger. That might increase the amount of time you can run your phone in the short run. But in the long run it will kill the battery.
I suggest you guys RELAX and try to stick with the responsibility of handling your phone the easiest way possible. Being not the hardest way to learn, but you eventually find the way to start new each time you look at your phone. Just saying kinda like when I have my EVO, It is just peachy to have. I don't want to tear the skin or even puncture the screen. LOL Like a PEACH?
I'm imaginative today and well, I always try to keep my phone in cool conditions, for short say. I use Juice Defender with Ultimate Juice with a good nice kernel and ROM that suits it as it suits.
alekosy said:
I suggest you guys RELAX and try to stick with the responsibility of handling your phone the easiest way possible. Being not the hardest way to learn, but you eventually find the way to start new each time you look at your phone. Just saying kinda like when I have my EVO, It is just peachy to have. I don't want to tear the skin or even puncture the screen. LOL Like a PEACH?
I'm imaginative today and well, I always try to keep my phone in cool conditions, for short say. I use Juice Defender with Ultimate Juice with a good nice kernel and ROM that suits it as it suits.
Click to expand...
Click to collapse
wtf.........?
Well its just like rooting and flashing custom roms, it may do this it may do that. If its such a concern don't use it. I'm using it and my phone doesn't take 7 hours to charge and it doesn't overheat at all, its a risk I am taking and I don't hold the developer responsible for it if something goes wrong. I understand the concern about this and I'm sure he will add a disclaimer.
wow and i was just starting to appreciate the new kernels. thanks for ruining it for me guys...
haha no i guess thanks for saving me....
dkdude36 said:
wow and i was just starting to appreciate the new kernels. thanks for ruining it for me guys...
haha no i guess thanks for saving me....
Click to expand...
Click to collapse
Agreeeeeeeeeed!
wfrandy said:
Yep, trickle charging is bad for the battery. Rememebr when all those laptop batteries were catching on fire? Same thing could potentially happen if your battery is not charged properly. They charge the batteries the way they do for a reason. That reason is relatively long battery life and safety.
Here is a good article on the subject.
Click to expand...
Click to collapse
This article is confusing because it says 2 different things:
1. The current "trickle charging" kernels are safe but we should be calling them "topping off" instead:
Full charge is attained after the voltage threshold has been reached and the current has dropped to 3% of the rated current or has leveled off.
Click to expand...
Click to collapse
The kernels drop to 0mA at 4.20V, so the voltage threshold is reached and the current safely drops.
2. The kernel is not safe because it keeps the battery at 4.20V/cell continuously:
No trickle charge is applied because lithium-ion is unable to absorb overcharge. A continuous trickle charge above 4.05V/cell would causes plating of metallic lithium that could lead to instabilities and compromise safety. Instead, a brief topping charge is provided to compensate for the small self-discharge the battery and its protective circuit consume. Depending on the battery, a topping charge may be repeated once every 20 days.
Click to expand...
Click to collapse
What am I missing?
guys... this is from the article put up:
When charging above 4.30V, the cell causes plating of metallic lithium on the anode; the cathode material becomes an oxidizing agent, loses stability and releases oxygen. Overcharging causes the cell to heat up. If left unattended, the cell could vent with flame.
The "trickle charge" kernels never go near 4.30v, mine stops at 4.19. Also, the temperature during the "trickle" overnight is very low. after 8 hours of "trickling" my battery was at 30 degrees C. Only time will tell if the battery life is SLIGHTLY shortened from this charging, but it is in NO WAY NEAR exploding, catching fire, blah blah blah. Stop scaring people, read the articles you post yourself and actually look at what is going on in these kernels. You may surprise yourself!
Now, if you cant get a replacement battery because you live on the moon and want your battery life to stay 3 years instead of 2 1/2, then it is your choice to not use these kernels, but dont scare others away just because you don't want to partake.
aph said:
This article is confusing because it says 2 different things:
1. The current "trickle charging" kernels are safe but we should be calling them "topping off" instead:
The kernels drop to 0mA at 4.20V, so the voltage threshold is reached and the current safely drops.
2. The kernel is not safe because it keeps the battery at 4.20V/cell continuously:
What am I missing?
Click to expand...
Click to collapse
hmsheen10 said:
wtf.........?
Click to expand...
Click to collapse
Jfree3000 said:
Well its just like rooting and flashing custom roms, it may do this it may do that. If its such a concern don't use it. I'm using it and my phone doesn't take 7 hours to charge and it doesn't overheat at all, its a risk I am taking and I don't hold the developer responsible for it if something goes wrong. I understand the concern about this and I'm sure he will add a disclaimer.
Click to expand...
Click to collapse
dkdude36 said:
wow and i was just starting to appreciate the new kernels. thanks for ruining it for me guys...
haha no i guess thanks for saving me....
Click to expand...
Click to collapse
hmsheen10 said:
Agreeeeeeeeeed!
Click to expand...
Click to collapse
LOL I don't know, but battery trickling isn't good to be heard to deal nicely with these EVOs, but If you wanna try to give it a run or a test on your own, be prepared that you voided your warranty.
alekosy said:
LOL I don't know, but battery trickling isn't good to be heard to deal nicely with these EVOs, but If you wanna try to give it a run or a test on your own, be prepared that you voided your warranty.
Click to expand...
Click to collapse
Your warranty was void as soon as you were able to flash a kernel... seriously... (I still have had a screen replaced from separating though!)
Look! A brand new battery for your EVO for $2.92 shipped!!
http://cgi.ebay.com/1500-mAh-HTC-Ex...ccessories&hash=item4aa608f2c7#ht_3246wt_1198
I guess I don't care if I have to replace them... just as long as they last an extra couple of hours everyday...
You all know that there is NO WAY it can hurt the actual phone, right???
sd2649 said:
Your warranty was void as soon as you were able to flash a kernel... seriously... (I still have had a screen replaced from separating though!)
Look! A brand new battery for your EVO for $2.92 shipped!!
http://cgi.ebay.com/1500-mAh-HTC-Ex...ccessories&hash=item4aa608f2c7#ht_3246wt_1198
I guess I don't care if I have to replace them... just as long as they last an extra couple of hours everyday...
You all know that there is NO WAY it can hurt the actual phone, right???
Click to expand...
Click to collapse
And try JuiceDefender with UltimateJuice, the 2nd app is a small fee paid app for donation, but it's very useful with the right kernel and rom for your liking. Trust on that, I think everyone would probably agree that this way would be the safest legit way.
I'm off to get my Galaxy Nexus tomorrow, but after hearing some of the poor battery reviews, I want to make sure I get off to a good start.
I heard something about there being a significant difference in how Samsung batteries perform if they are first "primed". How exactly do you prime a Samsung/Galaxy Nexus battery to ensure it gets the maximum life out of it?
Any non-battery tips are also welcome, as I want to make sure to make the best use of my Galaxy Nexus (coming from a Nexus One).
I would let the battery die, then leave it on the charger for 6-8 hours during the first charge.
rashad1 said:
I would let the battery die, then leave it on the charger for 6-8 hours during the first charge.
Click to expand...
Click to collapse
I'd do what he said but charge it to full first... and drain it to dead from full twice.
Sent from my Galaxy Nexus using Tapatalk
just received my phone, put in my sim and battery and hooked it up to the charger without turning it on.
will take it off the charger when the battery is full and start using it (it is already charging for about an hour now and still not full)
Great, thanks to all three of you. I'm hoping for better than my Nexus One, but I can't really imagine it being worse than my old HTC Touch Pro. (4 hours on standby, hell yeah!)
Btw. It's not advisable to let the batteries run dead completely, this can lead to damage, poor performance and reduced charging capabilities.
I'm not an expert, but if you google mobile phone battery best practices something should pop up.
Sent from my Galaxy Nexus using xda premium
philipdeane said:
Btw. It's not advisable to let the batteries run dead completely, this can lead to damage, poor performance and reduced charging capabilities.
I'm not an expert, but if you google mobile phone battery best practices something should pop up.
Click to expand...
Click to collapse
If I'm correct though, the phone turns off before it hits 0% so that the battery is not damaged. But I'm no expert either.
I'll stock up on some battery articles and see what I can find, thanks again.
Do what it says in the manual?
psykick5 said:
Do what it says in the manual?
Click to expand...
Click to collapse
got a manual handy?
Sent from my Galaxy Nexus using xda premium
everything you need to know about lithium-ion batteries
everything you need to know about lithium-ion batteries
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Good guide; it's nice to see some numbers actually attached to that.
The manual, however, just says to "charge the phone to full capacity" first, but nothing afterward.
Irrespective, the phone is now charging and I'm ready for some Ice Cream Sandwich goodness. Thanks guys! ^^
You can also get one of the battery apps from the android market. I got Battery Doctor and like it. It provides more precise control, and has a charge tab which lets you see exactly how much charge is there and lets you know when fully charged.
I get about 16 hours with moderate use (forums, phone calls, updating calender, etc). I get about 20+ hours when I am only checking facebook and forums.
Regards,
I havn't calibrated once and I received my phone a week ago.
It was also a display model, I think, as the box looked pretty warn out and there was no set up screen upon first getting it.
Will this present an issue or can I calibrate now and have the same benefits I would get if I calibrated a brand new one?
How is everyone finding the battery life. Personally, I am finding it just plain horrible. I'm not sure what the issue is specifically but either something is draining it or it is just really that bad, in which case I will return it. I can't get a day's worth of moderate use out of it. It seems to be at most half of what I get from my note 10.1 and they aren't set up any differently. I've tried some of the basics like turning down the screen brightness (which annoys me), turning off the smart stay (but why have a feature you can't use), tweaking email checking settings, turning off samsung sync, turning off bluetooth (don't use it), and locations services. Is anyone else seeing this as an issue and does anyone have any additional suggestions for me to try?
Thanks in Advance
I get about two days between charges on mine. I get a decent amount of usage on a daily basis between email, Facebook, and candy crush. I even have Google Now running. How many charge cycles have you been through?
05GT said:
I get about two days between charges on mine. I get a decent amount of usage on a daily basis between email, Facebook, and candy crush. I even have Google Now running. How many charge cycles have you been through?
Click to expand...
Click to collapse
If by charge cycles you mean fully discharging the phone until it shuts off, I haven't done that, but could give it a shot. It has gone down to 10% several times though.
No battery problems here. I wouldn't blame charge cycles, if they have any effect at all, it is minor. If I were you, I would do a factory reset, followed by an exchange if the reset doesn't fix it.
I have smart stay on , backlight on auto, and take no extra precautions for battery savings.
DownTFish said:
How is everyone finding the battery life. Personally, I am finding it just plain horrible. I'm not sure what the issue is specifically but either something is draining it or it is just really that bad, in which case I will return it. I can't get a day's worth of moderate use out of it. It seems to be at most half of what I get from my note 10.1 and they aren't set up any differently. I've tried some of the basics like turning down the screen brightness (which annoys me), turning off the smart stay (but why have a feature you can't use), tweaking email checking settings, turning off samsung sync, turning off bluetooth (don't use it), and locations services. Is anyone else seeing this as an issue and does anyone have any additional suggestions for me to try?
Click to expand...
Click to collapse
Can you please post some screen shots of your battery life at the end of a typical cycle? It will help with comparisons by giving us more details on your running apps, screen-on display times, etc. Also, what wakelocks do you have? Use BetterBatteryStats or Wakelock Detector from the Play store for that. This info might help us to identify just how much drain is related to rogue apps or the general battery life itself.
sefrcoko said:
Can you please post some screen shots of your battery life at the end of a typical cycle? It will help with comparisons by giving us more details on your running apps, screen-on display times, etc. Also, what wakelocks do you have? Use BetterBatteryStats or Wakelock Detector from the Play store for that. This info might help us to identify just how much drain is related to rogue apps or the general battery life itself.
Click to expand...
Click to collapse
Thanks. Just downloaded BetterBatteryStatus. I'll let it run for a bit and see what comes up. I'll post what I came up with with screen shots from it. Thanks for pointing me in a direction.
Also, it'd help to know how many hours "just plain horrible" is.
I'm not delighted by the battery life I'm seeing, I'm finding I want to charge every night, and that I can easily consume 15% / hour or more even without the screen turned up past 20-25%. (watching video off the NAS in the house.)
Then again, this is the first LCD display I've been able to read in full sunlight, and that's remarkable to me. I often wind up with full sun in the morning when I get up, and am delighted that if I did charge overnight I can use the device even then.
The battery needs some initial "training".
Charge fully on the first and run it all the way down to nearly zero, and fully charge again.
DO NOT interrupt the initial charge.
Battery life is great here after 5 cycles running it to 1% and recharging full at first it was draining faster but now I can watch 4 hours of netflix and still have 25% left nice thing is that the battery charges superfast so no worries
DownTFish said:
If by charge cycles you mean fully discharging the phone until it shuts off, I haven't done that, but could give it a shot. It has gone down to 10% several times though.
Click to expand...
Click to collapse
10% is just fine, for purposes of calibrating the battery meter. Preferable actually. You shouldn't actually drain the device until shutdown. There are safeguards that are supposed to ensure the battery voltage does not drop too low (its not actually zero when the phone shuts down). However, in reality these safeguards are not always failsafe and I've seen plenty of cases on various Android devices where letting the battery drain to shutoff renders the battery unable to take a charge (below the minimum threshold voltage). Sometimes, letting the battery charge overnight will bring the battery back. Otherwise, you are pretty screwed, as the only remedy would be a battery meter with a boost function.
In any case, the battery meter is not very accurate, even under the best of circumstances, so letting it drain to 10% is plenty accurate enough. Then let it charge to 100%, and let it sit at full for a while, as fully saturating the battery takes extra time.
---------- Post added at 11:15 AM ---------- Previous post was at 11:08 AM ----------
That said, its hard to say what "moderate use" means. Everyone uses their devices differently. If you are playing intensive games, downloading files, heavy internet usage, it can drain the battery much faster than other activities. And the number of hours of screen-on time is key. So the idea of getting some battery stats and screenshots, is a good one.
I haven't been tracking screen-on time myself. But I find the battery to be decent. I use it a good amount in the evening (don't bring it to work) mostly for reading and web browsing. I have brightness on 40-50% usually (sometimes less, if the room is darker). The battery was just under 40% after 2 nights of use (maybe 40 hours after the last charge). Just guessing, but maybe 3 or 4 hours of screen on time?
Some online reviews mentioned the battery life is not as good as some other comparable devices (such as Nexus 7 and iPad Mini). Not surprising, since the Note 8 has a faster processor and higher resolution screen than either. And so far, battery life is not amazing, but seems comparable or better (better drain while idle) than my old HTC Flyer tablet. So for me, thats just fine.
I got about 4 hours screen-on time on my first battery cycle with heavy usage. Was playing games, movies, internet browsing, etc. My second and third cycles were better, giving me 5-6 hours screen-on time with moderate to heavy usage. Didn't really play any movies, but did play a fair amount of games and stuff.
On those later cycles my screen-on drain represented about 85% of my overall drain. This leads me to say that you can expect 4.5-6.5 hours of screen-on time with the Note 8, depending on usage. Keep in mind that I keep wifi always on, disabled bluetooth/auto-sync/smart stay, stopped some running apps like Maps and Factory Test, and kept brightness down to about 15% of the max setting.
Screen is definitely the big drain here, and these results lead me to believe that even with root and apps like Greenify I would not get much better results. Looks like any further battery savings will need to come from a custom kernel and custom rom (unless maybe you root and then underclock/undervolt using a third party app like Voltage Control or SetCpu). Anyone else have similar (or different ) results?
mingkee said:
The battery needs some initial "training".
Charge fully on the first and run it all the way down to nearly zero, and fully charge again.
DO NOT interrupt the initial charge.
Click to expand...
Click to collapse
dumbest thing wrote in this thread probably. You do not need to train or do a full charge. How come people still believe that nonsense in 2013 ??
Bagbug said:
dumbest thing wrote in this thread probably. You do not need to train or do a full charge. How come people still believe that nonsense in 2013 ??
Click to expand...
Click to collapse
:what:...XDA is for fun and for sharing; not for putting others down. Please be a little more respectful towards forum users when you post in the future. If you disagree with something then just explain so we can all learn together.
I am assuming the Note 8 has a lithium based battery. I couldn't confirm it though. The below link has some tips for how to care for different type of batteries. Useful reading.
http://www.techrepublic.com/blog/tablets/how-and-when-to-charge-your-tablet-battery/814
Sent from my GT-N5110 using xda app-developers app
Although the battery life is of concern to me, the fact it charges via a micro USB input rather than propriatry cable alieviates that worry (looking at you Apple). I dont think I go anywhere where there isnt a charger available thanks to the amount of devices that use them.
Bagbug said:
dumbest thing wrote in this thread probably. You do not need to train or do a full charge. How come people still believe that nonsense in 2013 ??
Click to expand...
Click to collapse
While his terminology might have been a bit clumsy, he is not completely incorrect.
The terminology of "training the battery" invokes the concepts of conditioning the old technology NiCad batteries to prevent memory effects, which are not a concern with Li ion batteries, which is what you seem to be referring to. Folks on XDA will often talk about conditioning or calibrating the battery, which can be a bit misleading (as often they have the behavior of the old NiCad batteries in mind when saying this).
However, it is true that the battery meter needs to be calibrated to be completely accurate. This calibration has no chemical effect on the battery itself (like it does with NiCad batteries) but simply effects how the current readings are displayed by the % battery meter on the device's screen. Without fully charging and draining the device, it doesn't have fully accurate "flags" associated the current to battery %.
http://batteryuniversity.com/learn/article/battery_calibration
Failure to calibrate the meter won't have a negative chemical effect, like failure to periodically condition a NiCad battery. And therefore it won't have an affect on the battery life. But properly calibrating will give you the most accurate % battery reading possible. The battery meter is not accurate out of the box, after a ROM flash, and an OTA may also reset the calibration.
As I've already mentioned in a previous response, I don't recommend draining the battery to shutoff. As doing so can lead to the battery no longer taking a charge, and the device no longer powering on. Its rare, but it does happen. Fully changing, then draining to 10% or so is enough. Full cycles are also not good for the long term life of the battery, although just doing it once every few months is still acceptable.
---------- Post added at 10:21 AM ---------- Previous post was at 10:07 AM ----------
kisrita said:
I am assuming the Note 8 has a lithium based battery. I couldn't confirm it though. The below link has some tips for how to care for different type of batteries. Useful reading.
http://www.techrepublic.com/blog/tablets/how-and-when-to-charge-your-tablet-battery/814
Click to expand...
Click to collapse
Pretty good link, thanks. And reinforces what I just said above.
Most any smartphone or tablet made in the past several years uses a Li ion battery. This confirms it: http://www.gsmarena.com/samsung_galaxy_note_8_0_n5100-5252.php
---------- Post added at 10:26 AM ---------- Previous post was at 10:21 AM ----------
hertsjoatmon said:
Although the battery life is of concern to me, the fact it charges via a micro USB input rather than propriatry cable alieviates that worry (looking at you Apple). I dont think I go anywhere where there isnt a charger available thanks to the amount of devices that use them.
Click to expand...
Click to collapse
The charger for the Note 8 is 2 Amps, while most MicroUSB chargers (at least for phones and other small devices) are 1 Amp. Although this varies, and there are other tablet chargers that are also 2 Amps; but these are far less common than phone charges that just about anyone with a phone that isn't Apple will have.
What this means is that the 1 Amp charger will charge the Note 8 very slowly. I tried mine on a 1 Amp charger just once so far. Left it on for maybe an hour, and the charge only increased by a few percent.
So yes, you can charge with most MicroUSB chargers in a pinch. But it will be slow.
hertsjoatmon said:
Although the battery life is of concern to me, the fact it charges via a micro USB input rather than propriatry cable alieviates that worry (looking at you Apple). I dont think I go anywhere where there isnt a charger available thanks to the amount of devices that use them.
Click to expand...
Click to collapse
Don't get the physical plug of a charger confuse you - I believe this tablet needs a 2amp output from the charger, meaning just because your charger has the same end connection, it won't necessarily help you charge this battery. I've had my users come to me thinking their devices are defective because they somehow started charging their tablet with their Bluetooth headset charger.
Someone also mentioned the black wallpaper that might help with the battery consumption - I believe that is only helpful on AMOLED screens that Samsung has used on other devices.
I'm really still on the fence on keeping it after I bought this - I'm coming from a GT 7.7 which had excellent build quality,screen, and battery life. The loss of the AMOLED screen for both graphics and battery efficiency is bothering me. I put both up side by side and feel disappointed that Samsung couldn't just make a JB updated 7.7 with new CPU, 2GB RAM, and stylus with the same design and beautiful Super AMOLED Plus screen. It's not even the price - but just feeling like I'm getting a somewhat inferior device (in a few but important aspects) from the 7.7, when it's supposed to be an upgrade to the older device.
I've seen the news about an upgrade to the 7.7 possibly coming, but will it come with the stylus that is also important to me and the other software enhancements from the Note 8?
Bagbug said:
dumbest thing wrote in this thread probably. You do not need to train or do a full charge. How come people still believe that nonsense in 2013 ??
Click to expand...
Click to collapse
Funny thing happened on mine.
The battery was VERY BAD the second day, but it could play live streaming for two hours when the battery was 1%. As soon as the tablet went off due to depleted battery, I charged it until it went all the way until the "full battery" came up.
After that, the battery is much better now, so don't say anything "dumb" or any nonsense because it works.
rEVOLVE said:
Someone also mentioned the black wallpaper that might help with the battery consumption - I believe that is only helpful on AMOLED screens
Click to expand...
Click to collapse
That is correct, having a black background does not effect battery life on LCD screens.
On AMOLED screens, black pixels are actually not emitting light (while pixels displaying other colors emit light), which is why a black background will cause less battery drain than other colors.
On an LCD, the liquid crystal layer that depicts the colors is not itself a source of light. Its lit from the back, and the light intensity of the backlight is the same regardless of what color is being displayed. How much light is blocked or let though by the liquid crystal layer varies depending on their alignment (what color is being displayed). But this doesn't affect how bright the backlight is, anymore than pulling a window blind makes the sun burn less hydrogen.
Speedy Gonzalez said:
Battery life is great here after 5 cycles running it to 1% and recharging full at first it was draining faster but now I can watch 4 hours of netflix and still have 25% left nice thing is that the battery charges superfast so no worries
Click to expand...
Click to collapse
Only four hours? My Nexus 7 averages about 10.5 hours of Netflix with 10% left. I wonder how other note 8's compare?
Sent from my Nexus 7 using xda premium
So the battery life absolutely sucks on my One. If I start using it at 8am its dead by 5 pm. And that's just normal usage like surfing the web over WiFi, playing games (candy crush, dots, angry birds space,) maybe watching a few short videos over WiFi and the occasional text message. I have a battery saver app and I can see that it helps but I guess there's only so much it can do,Z so I want to get one of those cases that has an external battery built in. I have a few questions.
1. Does anyone here use one of these? Please give your input.
2. What's the best one? I've done a little research and found that the i-Blason and Mophie ones seem to be most popular. They're both a bit pricey.
3. How do they work? Does the phone just start directly using the external power after you switch it on, or does it just charge the internal battery?
4. Can these things have any kind of adverse effects on the internal battery from odd charging voltage or anything like that?
5. Do they actually extend your battery time as advertised? I'd be happy with getting two full days out of a single charge and some of these things are advertised as extending it by more that 1.5x. It seems like if the external battery is just charging the internal battery it would be a bit less efficient than if it were directly powering the phone. Does that make sense? It just seems like there couldn't possibly be a direct conversion of 2300 mAh from one battery to completely charge another 2300 mAh battery.
I hope that wasn't too confusing. Personally, I can't wait until lithium-sulfur batteries are in all our electronic devices (potentially 4x energy density.) Google it. Sounds promising.
Sent from my Nexus 7 using xda app-developers app
JGress said:
So the battery life absolutely sucks on my One. If I start using it at 8am its dead by 5 pm. And that's just normal usage like surfing the web over WiFi, playing games (candy crush, dots, angry birds space,) maybe watching a few short videos over WiFi and the occasional text message. I have a battery saver app and I can see that it helps but I guess there's only so much it can do,Z so I want to get one of those cases that has an external battery built in. I have a few questions.
1. Does anyone here use one of these? Please give your input.
2. What's the best one? I've done a little research and found that the i-Blason and Mophie ones seem to be most popular. They're both a bit pricey.
3. How do they work? Does the phone just start directly using the external power after you switch it on, or does it just charge the internal battery?
4. Can these things have any kind of adverse effects on the internal battery from odd charging voltage or anything like that?
5. Do they actually extend your battery time as advertised? I'd be happy with getting two full days out of a single charge and some of these things are advertised as extending it by more that 1.5x. It seems like if the external battery is just charging the internal battery it would be a bit less efficient than if it were directly powering the phone. Does that make sense? It just seems like there couldn't possibly be a direct conversion of 2300 mAh from one battery to completely charge another 2300 mAh battery.
I hope that wasn't too confusing. Personally, I can't wait until lithium-sulfur batteries are in all our electronic devices (potentially 4x energy density.) Google it. Sounds promising.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
1. I don't use these so I can't comment on this.
2. The iBlason and Mophie are the only ones available that I have ever seen. The Mophie being the higher quality (materials not necessarily battery life) of the two but also twice the price.
3. The phone will use the battery cases charge first then once that is drained use the phones internal battery. However if your phone battery isn't fully charged and you plug a charged case into it, it will charge the phone.
4. It's a good question and I'm not 100% sure. If you use it properly it shouldn't cause any major issues. Using it "properly" meaning your phone has full charge when it is paired with case so that the case isn't charging the phone. That being said, the damage is no different than someone constantly charging and discharging their phone in short bursts rather than using it until it's dead (or as close to possible) and then fully charging. The big thing to be aware of is that the damage caused is simply a reduced battery capacity and usually isn't big enough to notice during the life span of the phone (1 to 2 years).
5. Yes they do. Some of the claims may be a little higher than life experience, but nothing drastic. It litterally adds a second battery to your phone, so it IS going to extend the battery life quite noticeably.
One thing though, I have had my HTC One for a month or so now and have kept it stock, occassionally trying custom roms, but always going back. I have consistently been able to get over a full days use with WiFi always on, GPS always off, brightness always on auto, and I have exchange synced and set to push notifications. I am constantly checking email and texting for work as well as browsing the internet and Google Currents. I also have the power saver turned on. A full day use for me being from 8am to around 12am.
I think either something is wrong with your phone, you are playing too many games, or some setting or service is draining your battery. I would post your battery usage here for some to inspect. And it might be a good idea to uninstall the batter saver app, they usually don't make any huge dent on battery life that can't be done without the app, since most rely on a polling service that runs in the background and eat up battery life themselves. Just make sure your sync settings are reasonable (not every 5 minutes), turn off GPS and only turn it on when needed, don't turn on WiFi unless you need it, turn off 4G unless you need it (switch to CDMA only in mobile settings), enable eco mode (power saver that throttles CPU based on usage), and make sure brightness is set to auto or a medium to dim setting.
Sent from my HTCONE using xda app-developers app
ebbinger_413 said:
/snip
Click to expand...
Click to collapse
Mostly right. I'll toss out though that cases have different current outputs-- the mophie cases will output at a high enough rate to cause a phone to register as being on AC. the i-Blason case charges at about a third of that rate, meaning that it'll trickle charge your phone/reduce power consumption rate, but it won't outright charge unless you're not using it.
JGress said:
So the battery life absolutely sucks on my One. If I start using it at 8am its dead by 5 pm. And that's just normal usage like surfing the web over WiFi, playing games (candy crush, dots, angry birds space,) maybe watching a few short videos over WiFi and the occasional text message. I have a battery saver app and I can see that it helps but I guess there's only so much it can do,Z so I want to get one of those cases that has an external battery built in. I have a few questions.
1. Does anyone here use one of these? Please give your input.
2. What's the best one? I've done a little research and found that the i-Blason and Mophie ones seem to be most popular. They're both a bit pricey.
3. How do they work? Does the phone just start directly using the external power after you switch it on, or does it just charge the internal battery?
4. Can these things have any kind of adverse effects on the internal battery from odd charging voltage or anything like that?
5. Do they actually extend your battery time as advertised? I'd be happy with getting two full days out of a single charge and some of these things are advertised as extending it by more that 1.5x. It seems like if the external battery is just charging the internal battery it would be a bit less efficient than if it were directly powering the phone. Does that make sense? It just seems like there couldn't possibly be a direct conversion of 2300 mAh from one battery to completely charge another 2300 mAh battery.
I hope that wasn't too confusing. Personally, I can't wait until lithium-sulfur batteries are in all our electronic devices (potentially 4x energy density.) Google it. Sounds promising.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
1. I've used one for about 2 days. I returned it. It works well and the Mophie definitely feels of high quality and feels great in hand. However it makes the sleek device very big and bulky.
2. I would recommend the Mophie purchased at your local corporate carrier store, reason being is that usually your carrier will offer a 1 yr warranty on a premium case like this. However if you break or it shows ridiculous wear and tear they wont. I cannot comment on I-Blason's warranty. Although I think the Mophie is perhaps more expensive. Some carrier offer discounts based on employer's of the account owner. So that might help get the case cheaper.
3. See comment below
4. Usually since they're molded directly to fit your device, most manufacturer's will accommodate the OEM's requirements. But the Mophie charges as fast as it would if you had plugged it into an AC charger.
5. This question is a bit more confusing for me to answer. All I can say is that if they advertise a 100% charge then that means they're matching the mAh capacity of the device. (Ex. phone model has a 2000mAh battery internal and the case advertises 100%, then that means the external battery is also rated at 2000mAh.) So in reality if you're expecting a complete 100% charge while your device is still on, then no, you may get from 1% up to 70-90% depending on how much you're using it while its charging.
ebbinger_413 said:
3. The phone will use the battery cases charge first then once that is drained use the phones internal battery. However if your phone battery isn't fully charged and you plug a charged case into it, it will charge the phone.
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This is not entirely true. Because the Mophie has an on/off switch. So if the case is set to off, it'll use the internal battery first, then you need to switch the battery case to on to begin charging the internal battery. It is entirely possible to use the phone till it completely shuts down when it run out of juice and the Mophie have a full charge.
It uses the same charger as the phone itself so the case never has to come off, however even if the switch is set to off it'll charge both items at the same time.
adamjamess said:
1. I've used one for about 2 days. I returned it. It works well and the Mophie definitely feels of high quality and feels great in hand. However it makes the sleek device very big and bulky.
2. I would recommend the Mophie purchased at your local corporate carrier store, reason being is that usually your carrier will offer a 1 yr warranty on a premium case like this. However if you break or it shows ridiculous wear and tear they wont. I cannot comment on I-Blason's warranty. Although I think the Mophie is perhaps more expensive. Some carrier offer discounts based on employer's of the account owner. So that might help get the case cheaper.
3. See comment below
4. Usually since they're molded directly to fit your device, most manufacturer's will accommodate the OEM's requirements. But the Mophie charges as fast as it would if you had plugged it into an AC charger.
5. This question is a bit more confusing for me to answer. All I can say is that if they advertise a 100% charge then that means they're matching the mAh capacity of the device. (Ex. phone model has a 2000mAh battery internal and the case advertises 100%, then that means the external battery is also rated at 2000mAh.) So in reality if you're expecting a complete 100% charge while your device is still on, then no, you may get from 1% up to 70-90% depending on how much you're using it while its charging.
This is not entirely true. Because the Mophie has an on/off switch. So if the case is set to off, it'll use the internal battery first, then you need to switch the battery case to on to begin charging the internal battery. It is entirely possible to use the phone till it completely shuts down when it run out of juice and the Mophie have a full charge.
It uses the same charger as the phone itself so the case never has to come off, however even if the switch is set to off it'll charge both items at the same time.
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I was not aware they had an on off switch, that would change the way the phone handles the device and give you a bit of flexability in how you use it, which is good.
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adamjamess said:
This is not entirely true. Because the Mophie has an on/off switch. So if the case is set to off, it'll use the internal battery first, then you need to switch the battery case to on to begin charging the internal battery. It is entirely possible to use the phone till it completely shuts down when it run out of juice and the Mophie have a full charge.
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I wonder if it would use the case battery first if you turned it on when both are 100% charged. Everywhere I've read, people seem to use them to charge the phone after the battery gets low. It would be great if the phone would just draw power from the case until it dies and flip over to the phone battery. I feel like that would keep the phone battery more healthy by avoiding inconsistent charging. If you're constantly killing the phone battery and using the case to recharge to less than 100%, then killing it again... it just seems like that would be bad for the battery.
Thanks everyone for the input! Keep it coming!
JGress said:
I wonder if it would use the case battery first if you turned it on when both are 100% charged. Everywhere I've read, people seem to use them to charge the phone after the battery gets low. It would be great if the phone would just draw power from the case until it dies and flip over to the phone battery. I feel like that would keep the phone battery more healthy by avoiding inconsistent charging. If you're constantly killing the phone battery and using the case to recharge to less than 100%, then killing it again... it just seems like that would be bad for the battery.
Thanks everyone for the input! Keep it coming!
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Good question. My thoughts would be that the phone would only draw enough to keep topped off. So I guess if the switch is left to the on position the whole time you would get the desired effect of draining the external pack first. But I would guess that doing that would reduce the efficiency of the case somehow.
In the end whether your constantly killing and charging your battery no matter to 90% or 100% with the case or A.C. charger, doing it more often will kill your battery either way. Given lithium ion batteries are way more forgiving than the old cadmium based ones that built up a memory of sorts.
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To keep the battery healthy in a phone, make sure you charge to 100% each time. You don't need to fully drain battery, it's actually healthier to go from 50% to 100% than 1% to 100%.
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pewpewbangbang said:
To keep the battery healthy in a phone, make sure you charge to 100% each time. You don't need to fully drain battery, it's actually healthier to go from 50% to 100% than 1% to 100%.
Sent from my HTC One using xda app-developers app
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So if my phone only gets down to about 40% each night before I plug it in to charge all night I'm ok? In the back of my head I'm always wondering if I need to drain it all the way sometime.
Philmize said:
So if my phone only gets down to about 40% each night before I plug it in to charge all night I'm ok? In the back of my head I'm always wondering if I need to drain it all the way sometime.
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You are fine, it's better to not drain the battery all the time. It lasts longer if there's charge left. You just have to make sure your fully charging to 100% and not charging only to 70% or something like that. This is how lithium batteries work in all devices, laptops etc...
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And either way you wouldn't notice the loss in capacity until you at least 2-3 years out.
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So I've been thinking about this a lot over the past few days and I have something else i want to throw out there...
If you have your phone plugged in to a charger while at full charge, you can use it all you want and it will never go below %100. Does this mean that it's completely drawing power from the charger, or is it still drawing power from the battery, which is just constantly being topped off? Because I know I can completely remove the battery from my laptop and as long as it's plugged in to the charger, it will continue to function just fine.
If the phone is drawing 100% power from the charger, doesn't that mean that it would do the same for one of these battery extender cases?
Like I said before, I think that would be a lot more efficient that just using the case to recharge your phone's battery after it gets low. This way you sort of cut out the middle man.
BTW... I found that there was a weather app that I think was constantly trying to access my location even though I have location services turned off. I now get a good 10 hours of battery life with moderate usage. Still want a battery extender case. 2 full days would be awesome.
HTC battery life DOES suck compared what it can do because you are not going to buy a phone like this if you wont chat/text/call/email/play games alot. Mine lasts 10-15hours (usualy 2.5-3hours screen time and NEVER more than 3) and thats annoyng because its ok if im just ordinary home-work-home rezime but if i need to go out of the city for lets day 2-3 days - im screwed and allways must think about charging.
I have overlooked everything nothing wrong with the phone - the battery is just too small.
i keep wifi ,gps and bt off if i dont need them but my phone ofcourse syncs everything (thats the point of a smartphone - to be connected!) and i play often also.
JGress said:
So I've been thinking about this a lot over the past few days and I have something else i want to throw out there...
If you have your phone plugged in to a charger while at full charge, you can use it all you want and it will never go below %100. Does this mean that it's completely drawing power from the charger, or is it still drawing power from the battery, which is just constantly being topped off? Because I know I can completely remove the battery from my laptop and as long as it's plugged in to the charger, it will continue to function just fine.
If the phone is drawing 100% power from the charger, doesn't that mean that it would do the same for one of these battery extender cases?
Like I said before, I think that would be a lot more efficient that just using the case to recharge your phone's battery after it gets low. This way you sort of cut out the middle man.
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Nope its being topped off, phones are all about maximizing space in the phone, it would require more wiring for the motherboard to be able to draw power directly from the micro usb port as well as the battery. For example, my Samsung phones can be plugged in but if I take the battery out the phone turns off.
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I got this one - all day w/o charging w very heavy usage. Traveling w/o signal - 2-3 days no charge. Makes the phone bigger and you can't see the gorgeousness of the phone, but it protects it all around and it lets those 4 cores and crazy display to do its job w/o dying on you fast.
This guy sells them for $20. Have seen them in other sites for $70-130. Same exact model.
http://rover.ebay.com/rover/0/e1140...&exe=10013&ext=100025&sojTags=exe=exe,ext=ext
InterFace86 said:
HTC battery life DOES suck compared what it can do because you are not going to buy a phone like this if you wont chat/text/call/email/play games alot. Mine lasts 10-15hours (usualy 2.5-3hours screen time and NEVER more than 3) and thats annoyng because its ok if im just ordinary home-work-home rezime but if i need to go out of the city for lets day 2-3 days - im screwed and allways must think about charging.
I have overlooked everything nothing wrong with the phone - the battery is just too small.
i keep wifi ,gps and bt off if i dont need them but my phone ofcourse syncs everything (thats the point of a smartphone - to be connected!) and i play often also.
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You just don't know how to manage wakelocks. Do some reading. Mine lasts almost 2 days with 5 hours screen on time.
Sent from my HTC One using Tapatalk 4
DELETE
1. I have the i-Blason black.
As a Case
Pros: Great volume controls, Black matches the black HTC One and the black earbud plug, kickstand, central USB plug.
Cons: Thick, Gets Warn when plugged in
3. There's a button that turns charging from the case on or off. Phone will be like it's externally charging.
4. The i-Blason is a lower current charging, so there's a warning that pops up. I think it's not harmful.
5. Extends, yes. But >1 day, no. Well, if you're not using the phone, yes, > 1day. What I do is I let it charge the phone when I'm not near a usb plug and it gets < 80%, then i let it trickle back to 100% in about an hour. It automatically stops charging the phone at 100%.
Learn how to manage your phone guys. Track down the offenders instead of buying these battery packs and other nonsense.
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