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everyday when I use the galaxy nexus my routine is.
before I sleep, I plug my phone to my phone charger and I pull it out after I wake up. so its basically charging for about 5-7 hours on average.
is this decreasing my battery life? because ever since I had the nexus, I did this and I have never had battery life compared to what people post on xda despite trying out roms/kernels.
so that was my first question.
my second question is, is flashing like getting a new device? after I flash, is the battery life suppose to be bad?
I constantly flash almost every other day and I'm not sure if this is the reason my battery life is so bad.
am I suppose to use my phone for couple weeks before I get good battery life?
btw. I have a cdma galaxy nexus .thanks
Sent from my Galaxy Nexus using XDA App
1°) Is battery life reduced after long charging? This is a good question. I have no proof on that point but I think so. Continuing to keep current going through the battery once fully charged does not improve the battery capacity. The analysis I made on several smartphones shows that some of them stop the current while fully charged ( for example HTC touch Cruise) but most of them keep a charging current.
Samsung smartphones are difficult to analyse because they do not give any data on the current going through the battery
2°) Battery calibration will not improve the battery capacity: Once the battery capacity has been reduced, this is due to chemical changes in the battery, there are no way to repair it. What we could expect is to remove the battery shutdown artefact by adjusting internal parameters of the battery control circuit, so that the state of charge calculus will be more accurate again.
Some more details are given here: http://78michel.unblog.fr/htc-desire-battery-shutdown-analysis/ and in some other pages on this blog
7_michel said:
1°) Is battery life reduced after long charging? This is a good question. I have no proof on that point but I think so. Continuing to keep current going through the battery once fully charged does not improve the battery capacity. The analysis I made on several smartphones shows that some of them stop the current while fully charged ( for example HTC touch Cruise) but most of them keep a charging current.
Samsung smartphones are difficult to analyse because they do not give any data on the current going through the battery
2°) Battery calibration will not improve the battery capacity: Once the battery capacity has been reduced, this is due to chemical changes in the battery, there are no way to repair it. What we could expect is to remove the battery shutdown artefact by adjusting internal parameters of the battery control circuit, so that the state of charge calculus will be more accurate again.
Some more details are given here: http://78michel.unblog.fr/htc-desire-battery-shutdown-analysis/ and in some other pages on this blog
Click to expand...
Click to collapse
thanks for the answer to questions1.
but I think I may have written question number 2 in a bad way which was not what I intended. I did not mean to ask if battery calibration increased battery life.
most people already know that it does not.
what I am asking is if battery life is suppose to be calibrated(?) right after you flash a new rom or kernel.
I asked this because I flash a lot and don't get good battery life. I'm not sure if its my device that is the problem or the constant flashing that causes this.
I have currently stopped flashing for 2 days now so I will report back if that was the problem.
anyways thank you for the reply
Sent from my Galaxy Nexus using XDA App
To answer question 2, you do not need to calibrate the battery and flashing roms does not consider your battery bad. The community here does have different opinions on calibration but it wasn't too long ago I read an article where google devs came out and told everyone this isn't really needed.
I have had a droid incredible and now the gnex, and have flashed numerous roms. I have never calibrated my battery and typically experience pretty good battery life AFTER I have played with the phone and set it up and stopped turning on the screen ever 2 minutes
To answer question #1:
The battery is a Lithium Ion battery. Lithium Ion batteries like to be charged. You should keep them above 10% as often as possible and ideally plugged when ever you can. These types of batteries last longer with a constant charge than with out, the full "Drains" kill Lithium Ion batteries faster and should only be done when you are calibrating the device (on the first charge or two).
The confusion comes from the old rechargeable Nickel Cadmium batteries which lasted longer if you did a full charge and discharge as these had a "memory".
As far as question #2 goes that is personal preference. I have flashed my GNex 6 or so times now and have had no issues when I didn't re-calibrate it.
x942 said:
To answer question #1:
The battery is a Lithium Ion battery. Lithium Ion batteries like to be charged. You should keep them above 10% as often as possible and ideally plugged when ever you can. These types of batteries last longer with a constant charge than with out, the full "Drains" kill Lithium Ion batteries faster and should only be done when you are calibrating the device (on the first charge or two).
The confusion comes from the old rechargeable Nickel Cadmium batteries which lasted longer if you did a full charge and discharge as these had a "memory".
As far as question #2 goes that is personal preference. I have flashed my GNex 6 or so times now and have had no issues when I didn't re-calibrate it.
Click to expand...
Click to collapse
so are you saying that its good to keep my phone plugged in while I sleep?
Sent from my Galaxy Nexus using XDA App
bluemoon1221 said:
so are you saying that its good to keep my phone plugged in while I sleep?
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
Yes. Because of the way it the chemical reaction works it is better to keep it charged (plugged in at night).
x942 said:
Yes. Because of the way it the chemical reaction works it is better to keep it charged (plugged in at night).
Click to expand...
Click to collapse
ok thanks for the explanation
Sent from my Galaxy Nexus using XDA App
Li-ion batteries decreases in capacity over time NO MATTER WHAT YOU DO. (even if you don't use it)This is the down side in exchange for easy maintenance and high energy density.
In short, just use it normal, charge it when it gets low and stop worrying about the battery life.
bluemoon1221 said:
what I am asking is if battery life is suppose to be calibrated(?) right after you flash a new rom or kernel.
I asked this because I flash a lot and don't get good battery life. I'm not sure if its my device that is the problem or the constant flashing that causes this.
Click to expand...
Click to collapse
I am not so clever with my English so I have not fully understood your 2nd question.
Flashing a new rom involve only the smartphone. Calibrating the battery is changing data stored inside the battery IC's memory.
These are two ''independant'' processes. The only relationship between them is that the some roms allows you to write in the battery memory and some others doesn't
What's average battery life you guys are getting with mod use ( variable term)?
x942 said:
To answer question #1:
The battery is a Lithium Ion battery. Lithium Ion batteries like to be charged. You should keep them above 10% as often as possible and ideally plugged when ever you can. These types of batteries last longer with a constant charge than with out, the full "Drains" kill Lithium Ion batteries faster and should only be done when you are calibrating the device (on the first charge or two).
The confusion comes from the old rechargeable Nickel Cadmium batteries which lasted longer if you did a full charge and discharge as these had a "memory".
As far as question #2 goes that is personal preference. I have flashed my GNex 6 or so times now and have had no issues when I didn't re-calibrate it.
Click to expand...
Click to collapse
remember 10% is not 10% displayed charge. 0% is about 25% as manufacturers take into consideration battery technologies when designing them. it is also quite dangerous to charge from 0-20% on a Lion battery as the chemical reaction has to be reactivated. and over charging can cause a fire.
All calibrating does is make the battery indicator more accurate, it doesn't increase the charge, the supplied chargers and phone tech will not allow overcharging, and the phone will not discharge a battery to below 25% as battery discharge below 25% will damage the cells.
if you are interested look into Lion charging in the RC world. we need balancing boards with controllers when charging multiple cells, and we have to put them in fire bag just in case. it will give you a greater understanding of how lion and charging works.
monkeypaws said:
What's average battery life you guys are getting with mod use ( variable term)?
Click to expand...
Click to collapse
Mine is pretty bad. I max out at 10 hours I'm trying Apex rom now hoping it will be better. Something tells me I need an extended battery.
7_michel said:
I am not so clever with my English so I have not fully understood your 2nd question.
Flashing a new rom involve only the smartphone. Calibrating the battery is changing data stored inside the battery IC's memory.
These are two ''independant'' processes. The only relationship between them is that the some roms allows you to write in the battery memory and some others doesn't
Click to expand...
Click to collapse
Exactly right. And our nexus does not give us any access to the chip inside the battery, so there is no need to do any type of calibration with this phone. No roms can change this either due to the max17040 fuel gauge chip inside our batteries.
bluemoon1221 said:
what I am asking is if battery life is suppose to be calibrated(?) right after you flash a new rom or kernel.
I asked this because I flash a lot and don't get good battery life. I'm not sure if its my device that is the problem or the constant flashing that causes this.
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
You got confused here. You are not calibrating the battery but how the OS interprets the battery data. The battery itself DOESN'T get calibrated. (And you cannot break a battery by flashing ROMs)
There's really nothing much you can do about the capacity of the battery itself as a normal user once it's been made in the factory.
monkeypaws said:
What's average battery life you guys are getting with mod use ( variable term)?
Click to expand...
Click to collapse
my battery seems to be only capable of 2 hours of screen time despite using 3g/wifi, no nfc, no bluetooth, no sync, etc.
but I can still live with it.
Sent from my Galaxy Nexus using XDA App
diablous said:
remember 10% is not 10% displayed charge. 0% is about 25% as manufacturers take into consideration battery technologies when designing them. it is also quite dangerous to charge from 0-20% on a Lion battery as the chemical reaction has to be reactivated. and over charging can cause a fire.
All calibrating does is make the battery indicator more accurate, it doesn't increase the charge, the supplied chargers and phone tech will not allow overcharging, and the phone will not discharge a battery to below 25% as battery discharge below 25% will damage the cells.
if you are interested look into Lion charging in the RC world. we need balancing boards with controllers when charging multiple cells, and we have to put them in fire bag just in case. it will give you a greater understanding of how lion and charging works.
Click to expand...
Click to collapse
Thanks for that! Didn't know it displayed it differently. I only know how the chemical reaction works and such.
NP fella, thing is Lion is new tech and people still see it by the standards of older battery tech so it's taken for granted that 0% is 0%, and 100% is 100%. where this wouldn't be possible as too many issues would crop up. in RC racing we basically learn it inside out, as Battery types are better for different things. Endurance racing needs Ni-Cad as i prefers a sustained drain and will slow the car near the end of the charge, but keep going with reduced acceleration, while Ni-MH batteries are good, as they have better acceleration due to there properties, but suffer from being fine and suddenly suffering poor acceleration, you have no warning like the last lap. While Li-on are brilliant for one and off acceleration like sprints, or twisty tracks, but run at max power right til the end then just stop dead.
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.
Sent from my HTCONE using xda app-developers app
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Sent from my HTCONE using xda app-developers app
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.
Click to expand...
Click to collapse
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!
Click to expand...
Click to collapse
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.
Sent from my HTC6500LVW using Tapatalk 2
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
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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...
Sent from my HTC One using xda app-developers app
And either way you wouldn't notice the loss in capacity until you at least 2-3 years out.
Sent from my HTCONE using xda app-developers app
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.
Click to expand...
Click to collapse
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.
Sent from my SCH-I605 using xda premium
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.
Click to expand...
Click to collapse
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.
Sent from my HTC One using Tapatalk 4
I have an AT&T Samsung Galaxy Note 4 running Lollipop. I've noticed I have been having fairly poor battery life over the last few days with Android System taking up the most usage. I purchased a spare battery for my Note 4 yesterday and I have been using the new battery with my phone. My android system usage is significantly lower with the new battery. Does this mean the older battery is defective? Or is it something else with the phone? Has anyone experience the same circumstances?
And yes, I have a SD card installed and I have factory reset my phone and wipe the cache after I installed Lollipop.
hw335 said:
I have an AT&T Samsung Galaxy Note 4 running Lollipop. I've noticed I have been having fairly poor battery life over the last few days with Android System taking up the most usage. I purchased a spare battery for my Note 4 yesterday and I have been using the new battery with my phone. My android system usage is significantly lower with the new battery. Does this mean the older battery is defective? Or is it something else with the phone? Has anyone experience the same circumstances?
And yes, I have a SD card installed and I have factory reset my phone and wipe the cache after I installed Lollipop.
Click to expand...
Click to collapse
If I were you, I'd use the new battery a few days before jumping to conclusions. The Android System usage may start up again. Knock on wood that it doesn't.
Sent from my SAMSUNG-SM-N910A using Tapatalk
spexwood said:
If I were you, I'd use the new battery a few days before jumping to conclusions. The Android System usage may start up again. Knock on wood that it doesn't.
Sent from my SAMSUNG-SM-N910A using Tapatalk
Click to expand...
Click to collapse
Thanks for the reply. Hopefully it won't start up again. I just feel it's weird because a new battery shouldn't affect what is using the battery but rather how long the battery lasts. Isn't that right?
hw335 said:
Thanks for the reply. Hopefully it won't start up again. I just feel it's weird because a new battery shouldn't affect what is using the battery but rather how long the battery lasts. Isn't that right?
Click to expand...
Click to collapse
I think so. I mean, the only thing I could think of that might reduce ASystem with a new battery would be if the new battery didn't have NFC. Then MAYBE ASystem will go down just because the system wouldn't be detecting the NFC chip. But even then, I wouldn't expect a huge drop in %usage.
If the old battery was defective, I also wouldn't expect ASystem to run high. If the CPU were bad though, then it definitely would because the cpu may not enter deep sleep, so the phone is always technically on. (I had the happen with my old phone. Had to get it warranty replaced).
Just keep an eye on it for a few days to see if things continue to stay good.
Btw, what battery? OEM? Third party? Large capacity (like a 6400mAh battery)?
Sent from my SAMSUNG-SM-N910A using Tapatalk
spexwood said:
I think so. I mean, the only thing I could think of that might reduce ASystem with a new battery would be if the new battery didn't have NFC. Then MAYBE ASystem will go down just because the system wouldn't be detecting the NFC chip. But even then, I wouldn't expect a huge drop in %usage.
If the old battery was defective, I also wouldn't expect ASystem to run high. If the CPU were bad though, then it definitely would because the cpu may not enter deep sleep, so the phone is always technically on. (I had the happen with my old phone. Had to get it warranty replaced).
Just keep an eye on it for a few days to see if things continue to stay good.
Btw, what battery? OEM? Third party? Large capacity (like a 6400mAh battery)?
Sent from my SAMSUNG-SM-N910A using Tapatalk
Click to expand...
Click to collapse
The new battery is just OEM. and thanks for your input.
So...with the new battery about 10 hours of run time and 4.5 hours of screen time (mostly YouTube). I am at 8% battery life? Is this normal?
Also here's my setup
- Bluetooth off.
- Location On - Power Saving Mode
- WiFi on and connected, look for WiFi network is On. Always connected to WiFI is on.
- YouTube @ 15% of Battery and Screen / Android System both taking up 14%.
- Screen Brightness on Auto
Is this normal or should I be getting battery life out of my phone?
hw335 said:
So...with the new battery about 10 hours of run time and 4.5 hours of screen time (mostly YouTube). I am at 8% battery life? Is this normal?
Also here's my setup
- Bluetooth off.
- Location On - Power Saving Mode
- WiFi on and connected, look for WiFi network is On. Always connected to WiFI is on.
- YouTube @ 15% of Battery and Screen / Android System both taking up 14%.
- Screen Brightness on Auto
Is this normal or should I be getting battery life out of my phone?
Click to expand...
Click to collapse
I think many people report 4.5-5 hours of constant screen on time, so I think your getting normal battery life.
I usually get about 1-2 hrs screen on time, but my phone is in standby for tge rest of the time. I usually then get a day and a half of battery life (or 2 days).
Sent from my SAMSUNG-SM-N910A using Tapatalk
every battery recalibrator i know of needs root. my phone likes to die at 25% because i made the mistake of getting an att phone.
anyone know of a battery recalibrator that will work without root, aka on our note 4?
i've tried the whole, discharge battery fully and charge it back up, this got me to where it would die around 4% which was an improvement, but now a week later its dying at 25% again..
It's so sad such an easily fixable bug can completely cripple my phone because it doesnt have root.
anyone know of a battery calibrator, or method, aside from just cycling my phone dead/full/dead/full over and over.
thanks.
soraxd said:
every battery recalibrator i know of needs root. my phone likes to die at 25% because i made the mistake of getting an att phone.
anyone know of a battery recalibrator that will work without root, aka on our note 4?
i've tried the whole, discharge battery fully and charge it back up, this got me to where it would die around 4% which was an improvement, but now a week later its dying at 25% again..
It's so sad such an easily fixable bug can completely cripple my phone because it doesnt have root.
anyone know of a battery calibrator, or method, aside from just cycling my phone dead/full/dead/full over and over.
thanks.
Click to expand...
Click to collapse
Battery recalibration is just a placebo as long as you're using a stock battery. Ever since the Galaxy S2 days, battery calibration has become obsolete.
The only 2 exceptions are:
1) If you're using a cheap 3rd party battery, where they may claim that the mAh is equal to or greater than the stock battery, but in reality, it's so cheaply made that it's actually lower.
2) If you're using an extended battery that's a double or even triple layer/stack battery. In this case, the phone reads the battery incorrectly since it reads the battery stack-by-stack. In other words, when the first stack is nearly depleted, the phone will read the battery level at say 15%. Then, the second layer kicks in, and suddenly, it confuses the phone and it then thinks that it's got 40% battery left, then 60%, then 90%, etc.
The only solution to fix these two issues is to tweak the kernel (unlocked bootloader needed) or to just use a stock battery.
So in conclusion, I'd your phone isn't reading the battery level correctly, then it's most likely your battery. You'd want to get an OEM one and not some Chinese 3rd party battery.
Edit:
Some sources to back up my statement:
http://www.xda-developers.com/googl...-battery-stats-does-not-improve-battery-life/
http://www.phonearena.com/news/Here-are-10-types-of-Android-apps-you-should-absolutely-avoid_id65352
(Look at #1 on the list)
Sent from my SAMSUNG-SM-N910A using Tapatalk
All,
Last weekend, I experienced the most unusual occurrences where my Note 7 battery just drained within minutes while at least half full. I was browsing the internet on my phone waiting for a drink. I put the phone down to pick up the drink, and when I went back to the phone, I could not interact with it. I pressed on the power button for a few seconds, nothing. Went back to the car and plugged it up and there it went, it was out of power. I first thought it was weird, cause I could have sworn I had at least 40% batter left. Ok, whatever, that night it happened again. I'm pretty anal about battery power, so I will definitely notice when my battery reaches a low level especially so low that power shuts off.
Ever since the two incidents my phone has been running fine during the week. Just right now, I noticed my battery was at 39%, so I was like ok, let me plug it in and give it some juice before I leave work. I stepped away for a few seconds and come back to my phone and see it at 11%, I was like what?? I unlock my phone, and seeing it go down 10%, 9% while its being charged...I started "close all apps", still going down 8%, I go to settings, "optimize" and optimize all, nothing, 7%, finally drag down notification, close the Tidal app widget, and clear all, think what was left was Good app. 6%....keep watching the battery screen...7%...few seconds more 8%. PHewwww....
WTF was that?? Was it a rogue app that was sucking up the battery? But what triggered it? I checked GSAM battery tracker, Android System at 35% CPU usage 6h 9m, next is Kernel 11% 1h 56m, then Good 5.3% 55m..Instagram 4.9% 52min....
Its happened to me 3x within a week. GSAM is not telling me any info on what is causing this.
Any ideas?
If I were you , I would shut it down and return it .
tossero said:
If I were you , I would shut it down and return it .
Click to expand...
Click to collapse
me too
Sent from my SM-N930F using XDA-Developers mobile app
But from what I just did, to me it's gotta be a rogue app that's causing this or something is going on with the system. I also just wiped cached partition.
Sent from my SM-N930T using Tapatalk
Nutzzer said:
But from what I just did, to me it's gotta be a rogue app that's causing this or something is going on with the system. I also just wiped cached partition.
Sent from my SM-N930T using Tapatalk
Click to expand...
Click to collapse
Yes , maybe . Phone freezing and battery rapidly discharging in the actual context doesn't seem good. Be cautious...
Cheers~
Get rid of it ASAP!
When batteries discharge faster than expected they can generate heat, this heat can trigger the bad battery "explosion" we are all fearing.
This sounds like a prime situation. Shut the phone off and leave it off.
Get it replaced ASAP.
you should replace it
this is faulty battery
how long you had it so far
and how was batterg life , lagging , overheating like ?
FAULTY ALERT. do a scratch test and return it! lmao jk. just return it.
I have also had this happen where I check my battery percentage 75% then not a minute late my device is off and wont start up until I plug in a charger and then maybe 5 minutes later it show 30%. Something is really screwed up with the either these batteries or the phones themself. Worst decision ever was to not make the battery user replaceable! My Note 7 is going back once the replacements are available.
laserbiz said:
I have also had this happen where I check my battery percentage 75% then not a minute late my device is off and wont start up until I plug in a charger and then maybe 5 minutes later it show 30%. Something is really screwed up with the either these batteries or the phones themselves. Worst decision ever was to not make the battery user replaceable! My Note 7 is going back once the replacements are available.
Click to expand...
Click to collapse
Yup...I don't believe its the battery but something in the OS. I don't really care about removable batteries, but this battery fiasco, the lag, the battery drainage we experiencing...I think I'm done guys. I'm still on the fence, but leaning towards to the Iphone 7 Plus.
I honestly think it's something in the battery. The way they're exploding and the way it randomly drains points to battery issues. Plus if it was a software issue, Samsung would have pushed an update a long time ago. It's much easier to push an update than recall every single phone. I personally think the chemistry in the battery is off, that's why we get random drains and exploding batteries. Regardless, mine is getting exchanged as soon as the replacements are available. Btw, mine has been doing the same thing for the past week, so I know about having 50% or more of battery and it going completely dead. That's can't be because of the software. The phone would get hot if a rogue app was draining that fast. Not to mention I've never seen a rogue app drain a battery instantly...
Sent from my SM-N930T using Tapatalk
This could also be the electronics not accurately determining the batteries voltage. In turn, allowing the battery to charge well above what's safe (3.7v battery charged by a 5v charger)- and if there's one thing you don't do to lithium batteries it's overcharge them.
Phlip00ws6 said:
This could also be the electronics not accurately determining the batteries voltage. In turn, allowing the battery to charge well above what's safe (3.7v battery charged by a 5v charger)- and if there's one thing you don't do to lithium batteries it's overcharge them.
Click to expand...
Click to collapse
If the battery is not defective and it's the Power Management Circuit which is problematic, then the risk will even be more disturbing than the idea of having a defective battery. Anyone knows whether the Exynos variant is also using Qualcomm power management IC?
This is the extent of what Samsung is saying:
Based on our investigation, we learned that there was an issue with the battery cell. An overheating of the battery cell occurred when the anode-to-cathode came into contact which is a very rare manufacturing process error."
The leads shorting doesn't represent a problem with the cell - overheating/exploding would be normal in this situation.
Phlip00ws6 said:
This is the extent of what Samsung is saying:
Based on our investigation, we learned that there was an issue with the battery cell. An overheating of the battery cell occurred when the anode-to-cathode came into contact which is a very rare manufacturing process error."
The leads shorting doesn't represent a problem with the cell - overheating/exploding would be normal in this situation.
Click to expand...
Click to collapse
You have copy of the full report. I'm interested to read their findings.