Too many people I’ve met have misconceptions, wrong understanding or simply no idea at all about how to maintain the batteries inside their new spanking new electronic gadgets. More often than not, it will be one of those nifty, super-slim lithium-ion variants. So I decided to write this little primer to help you, erm, I mean, your techno-phobic friends along.
Note that my recommendations are catered along the lines of practical convenience as well as pure battery maintenance facts alone. As with everything, there is often more than a way to skin a cat. I do try to explain my rationale behind my recommendations, so do try to read on before clobbering me on the head with your PhD in advanced materials science.
Tip #1: Lithium-ion batteries are limited by their life-spans
Found an e-bay offer for a lithium-ion battery pack for your ageing notebook or PDA at bargain prices? Or saw that battery pack for your gadget in its dusty sealed package at the corner store of the flea market? Before you jump and snap it up, be sure to first check the manufacturer date.
We all know that all batteries are limited by a finite number of charging “cycles”. However, it is a little publicized fact that the lifespan of lithium-ion batteries are also limited by their manufacture date.
Your lithium-ion battery starts dying the moment it leaves the factory
The fact is, your lithium-ion battery starts dying the moment it leaves the factory! Of course, the actual life-span of an unused lithium-ion battery can vary by a fair amount based on its internal charge as well as the external temperature. But suffice to say that you can expect to irreversibly lose 20% of a lithium-ion battery’s charge every year from its original date of manufacture.
PDA came with more than one spare battery? Take it out of its shrink-wrap and use it interchangeably – today. Thinking of buying a “spare” battery for use in future? Well, just save the money and buy it only when you are ready to use it.
Tip #2: Avoid allowing your device to discharge completely
Every wondered why your modern phone, PDA or iPod is able to cheerfully tell you that “Your battery is now exhausted” for several seconds on its brightly-lid LCD screen before switching off? The reason is simple; there is an artificial circuit that shuts off the device when the charge in the battery is too low.
This extraneous circuit is built to protect from the damage that could result if the charge of your lithium ion battery falls too low. If you still don’t get it: if the charge of your lithium ion battery falls too low, the battery can get irreversibly and permanently damaged. So since Lithium Ion has no “memory effect”, it is better to simply charge your portable device as and when you can or remember.
To set your mind at ease, a “charge cycle” means a single iteration of depleting followed by a re-charge until 100% of battery charge. If you consume 50% of your iPod’s battery on day 1, recharge to 100% at night, and do the same thing on day 2, then you would have just finished up one charge cycle of its battery life.
Constantly recharging a lithium ion battery does not shorten the battery life more than normal usage would
Hence constantly recharging a lithium ion battery does not shorten the battery life more than normal usage would. Avoid letting it sit on empty for too long; instead, keep it charged-up if you can.
Tip #3: Take the battery out of your notebook computer when connected to AC helps… not!
Well ok, actually, taking out the battery from your notebook computer might help, but the reason it does is not really what you think it is.
It is not because of over-charging as most people might believe. There are some really smart circuits monitoring your lithium ion battery (See reason #2 above), and these circuits also ensure that your precious lithium ion never gets overcharged.
However, if there is another killer of lithium ion batteries other than old-age, then it would be heat. Long term exposure of a lithium ion battery to temperatures higher than 40 degrees Celsius permanently reduces its total charge capacity by noticeable percentages chunks per year. Having said that, I would hazard that modern processor like the Centrino Duo runs quite coolly overall.
On the other hand, it is really painful to see someone plug their AC adapter to their laptop, carefully remove the battery and put it aside, then finally sit down and switch on their laptop. Then have someone trip over their AC adapter an hour into an unsaved document. Ouch.
Unless you are setting up the laptop at Wal-Mart or Carrefour to run practically 24/7 until its time to sell it off at “display unit” pricing, my recommendation would be to save yourself the trouble and just leave the battery in. Actually, I think the real motivation to take the battery out of shop display units is to prevent theft. Really, why make it so inconvenient for yourself when the battery will be literally unusable in a few years time.
Source: http://www.articlesbase.com/laptops...w-about-your-lithium-ion-battery-4346670.html
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NEW ADDON:
Some also claimed that we should minimize the duration of the battery remain at high voltage (e.g. 4.2v / 100%). This is spoil the battery because the corrosion activities are relatively high when the battery is in high voltage/ full charge.
Put it short, after fully charge your battery, please use it ASAP. It won't give birth little baby battery if you leave it there with full charge
One way of Storing Battery for Long time
If you were to store your battery for a long time, discharge it to 40%. Keep it in a dry and cool place.
For me, my engineer friend teach me a way to keep battery, and i have tried this myself for last few years.
I put the battery into the industrial grade vacuum bag and vacuum it (almost no air in the package), then i store it in my refrigerator (around 0 -3 Celsius). I do this if i want to keep the battery there to sit few months.
NOTE: Make sure it is really a vacuum bag. Else the air in the bag will become moist and may spoil your battery. Careful
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Other Interesting Thread
Looking for specific tricks to save battery on your android devices?
Feel free to look at this thread
http://forum.xda-developers.com/showthread.php?t=1189755
Speed up your GPS fixing speed like Thunder (99.9% works unless your hardware broke)
http://forum.xda-developers.com/showthread.php?t=1239713
### for li-po battery http://www.rcgroups.com/forums/showthread.php?t=209187
brilliant post.
nice! Didnt know about the battery cycles!
Sent from my GT-i9100 with MIUI 1.7.8 - xda premium app
Cheers for the info. Knew a few things but still did Tip #3
thanks for tip #2.
have to change the habit.
thanx
everyday i learn something new. Brilliant post.
Thx for the lesson
Sent from my HTC Desire using XDA App
Original Here >> www . techatplay . com /?p=61
April 7th, 2007
Author: Paul Mah
This is a lot of very useful information. I can guarantee that I have always been misinformed on two out of three of these tips. Though really do hardly ever let my batteries discharge completely, and only remove my batter from my laptop when absolutely necessary. Still, nice to know so I know what not to do anymore!
Very good post and you are absolutely right about everything. Leaving the battery in a laptop for long periods of time with the computer being on generates an enormous amount of heat and kills cells within the battery. One thing I'd like to mention, however, is that you should always leave a lithium-ion based battery between 40-60% to have the longest battery life; 20-80% is a realistic range you should keep the battery in and is the next best thing. You never want to fully charge a battery, just like you should not let the battery die (cycling the battery would be something that should happen though if you are not getting the best of your battery life). Again, try not to have your battery passed 80% and not below 20%.
Another good tip is to not let your lithium-ion based devices (such as a GPS) in your car when it is hot out (or at all) because it will get hotter in your car than outside, your device's battery will be outside of its operating temperature and it will have cells that die out which will decrease the lifespan of your device's battery.
Reign255 said:
20-80% is a realistic range you should keep the battery in and is the next best thing. You never want to fully charge a battery, just like you should not let the battery die (cycling the battery would be something that should happen though if you are not getting the best of your battery life). Again, try not to have your battery passed 80% and not below 20%.
Click to expand...
Click to collapse
Thanks for the sharing guy. That means u never charge ur phone until full? u plug off middle of charging (when it about to reach 80%)? This is true, but i hardly implement it because normally i leave it charged overnight. But the best time i can do is to minimize the time my battery will remain at high percentage (90 - 100%).
Good advice but it's hard to be diligent, and like most people my phone charges overnight.
nice info mang.
nice info. many people didnt know this
Xenova said:
Thanks for the sharing guy. That means u never charge ur phone until full? u plug off middle of charging (when it about to reach 80%)? This is true, but i hardly implement it because normally i leave it charged overnight. But the best time i can do is to minimize the time my battery will remain at high percentage (90 - 100%).
Click to expand...
Click to collapse
That's correct; I TRY not to charge my phone passed 80%, but that's obviously hard to do when you need your battery to last all day with use anyway. I try not to ever charge it overnight either.
Excellent reading, thank you for your time and effort in posting this.
Sent from my HTC Desire using XDA Premium App
Reign255 said:
Very good post and you are absolutely right about everything. Leaving the battery in a laptop for long periods of time with the computer being on generates an enormous amount of heat and kills cells within the battery. One thing I'd like to mention, however, is that you should always leave a lithium-ion based battery between 40-60% to have the longest battery life; 20-80% is a realistic range you should keep the battery in and is the next best thing. You never want to fully charge a battery, just like you should not let the battery die (cycling the battery would be something that should happen though if you are not getting the best of your battery life). Again, try not to have your battery passed 80% and not below 20%.
Another good tip is to not let your lithium-ion based devices (such as a GPS) in your car when it is hot out (or at all) because it will get hotter in your car than outside, your device's battery will be outside of its operating temperature and it will have cells that die out which will decrease the lifespan of your device's battery.
Click to expand...
Click to collapse
good info. this is the first time i read this. where did you find this info? any reference links?
informative post & I assumed draining battery fully helped in longer battery life.
It actually seems like a rip-off afer reading thiss post XD
Thank you for the information.
Related
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.
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.
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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
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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).
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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.
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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.
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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)?
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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
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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
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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)?
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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.
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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.
MOD EDIT: Removed at the request of AndroidAdvices.com
Source ::
http://androidadvices.com/bump-char...mpaign=Feed:+AndroidAdvices+(Android+Advices)
Sent from my GT-S5360 using xda premium
***DON'T DO DRUGS***
?????? Believe it or not ??????
Sent from my GT-S5360 using xda premium
Lmao thats like a whole day of charging.
raolemo said:
Lmao thats like a whole day of charging.
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Hahaha ....
Funny..
Why not hole night ....????
Sent from my GT-S5360 using xda premium
Its like you are calibrating your battery again and again... I hav evn seen a thread a same like this for my psp years ago and it worked on it... Still to test on my phone
Sent from my GT-S5360 using XDA
I can't find any logical reason to explain how this method will work. I'm a chemist student, and I know the technology which used in our battery. as far as I know, charge our battery longer than its full time will decrease our battery life.
btw, it may sounds silly. after some years, we'll found that our battery power decreased. it will drain quicker than usual. if this happen, we may wrap our battery into a plastic bag then put it into freezer for 3-7 days.
I don't think bump charging is such a good idea. Bump charging kills your battery over time. I'll link an article later about it, soon as I find it.
Tapatalked.
kurotsugi said:
...as far as I know, charge our battery longer than its full time will decrease our battery life. ...
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Silvane said:
I don't think bump charging is such a good idea. Bump charging kills your battery over time. I'll link an article later about it, soon as I find it.
.
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Click to collapse
+1
charge more than necessary is a bad idea. if you have good phone, they have overcharge protection circuit that cut charge current. so charge over 100% only waste your time and electric bill. if you have bad phone, that make your battery overcharge, and that's very2 bad. bump charge maybe can fooling protection circuit, but that's make your battery overcharge.
here is my tips, it will double your battery capacities.
- charge your battery until 100%
- unplug your charger, turn off phone if still on
- go to your local store, and buy new battery
- swap your battery and charge your new battery
ok, that's a joke. but it's a good idea if you far from electric for few days. and if you use your phone for years, buy extra battery after 6 month to 1 year after your phone release is a good idea (if you have extra money of course) because it's cheaper (a lot of supply in market).
Here's the article. http://byrong.com/PowerTesting/
It's pretty long so I'll post the important points here.
Interestingly enough, improvements in battery management technology have compounded the average user’s perception of this problem. Older phones were rather inelegant in their charging behavior; usually filling the battery to capacity and then switching to a trickle current to maintain the highest charge possible. This offered the highest usage time in the short-term, but was damaging the battery over the course of ownership. As explained at Battery University, “The time at which the battery stays at [maximum charge] should be as short as possible. Prolonged high voltage promotes corrosion, especially at elevated temperatures.”[1]
This is why many new phones will “lose” up to 10% within a few minutes of coming off the charger. The reality is that the battery was only at 100% capacity for a brief moment, after which the battery management system allowed it to slowly dip down to around 90%. Leaving the phone plugged in overnight does not make a difference: the phone only uses the wall current to maintain a partial charge state.
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Click to collapse
Bump It. Or Should You?
One technique that has gained popularity in the user community is "bump charging." To bump charge a device, turn it off completely, and plug it into a charger. Wait until the indicator light shows a full charge (on the ADR6300, for example, the charging LED changes from amber to green) but do not yet turn the device back on. Instead, disconnect and immediately reconnect the power cord. The device will now accept more charge before saying it is full. This disconnect/reconnect process can be repeated multiple times, each time squeezing just a little bit more into the battery. Does it work?
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Click to collapse
The answer, of course, is that bump charging definitely works.
So what does it all mean?
If you absolutely need the highest capacity on a device like this, you will need to bump charge. There are currently people experimenting with "fixes" for this, but I have yet to see one that works. Be warned, however, that repeated bump charging will wear your battery faster and begin to reduce its capacity. If you are a "power user" who will buy a new battery a few months from now anyway, this presumably isn't a concern. If you are an average consumer who uses a device for a few years, I would recommend that you stay away from bump charging. The bottom line is that you don't really "need" to do it unless you are actually depleting your battery to 0% on a regular basis.
If you are someone who can top off your phone on a regular basis, do it. Plug it in when you're at home. Plug it in when you're at your desk. As explained by Battery University, "Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory."[2]
Beyond that, the best advice I can offer is to stop paying such close attention to your battery gauge and to just use your phone. Charge it whenever you can, and then stop obsessing over the exact numbers. If you really need more usage time, buy an extended-capacity battery and use it normally.
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Click to collapse
Still pretty long, but worth reading.
I don't believe it:''(
Hehehe..:-[:-[:-[
Sent from my GT-S5360 using xda premium
irfanbagus said:
+1
charge more than necessary is a bad idea. if you have good phone, they have overcharge protection circuit that cut charge current. so charge over 100% only waste your time and electric bill. if you have bad phone, that make your battery overcharge, and that's very2 bad. bump charge maybe can fooling protection circuit, but that's make your battery overcharge.
here is my tips, it will double your battery capacities.
- charge your battery until 100%
- unplug your charger, turn off phone if still on
- go to your local store, and buy new battery
- swap your battery and charge your new battery
ok, that's a joke. but it's a good idea if you far from electric for few days. and if you use your phone for years, buy extra battery after 6 month to 1 year after your phone release is a good idea (if you have extra money of course) because it's cheaper (a lot of supply in market).
Click to expand...
Click to collapse
+1 its all just wast our time and decrease the battery life. i think use a tweak script is enough
reyvababtista said:
+1 its all just wast our time and decrease the battery life. i think use a tweak script is enough
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Click to collapse
Agree with u :-\:-\
Ive read through XDA that bump charging increases your battery life but reduces the battery's life span
Welcome back stamatis. Yes, if you read my post in the first page it explains how.
Tapatalked.
When I got my one x roughly two weeks ago, battery life wasn't really that good. 8 hours max with a couple of hours of screen time. But I always calibrate my battery. When I got it I charged it for 8 hours then drained it then did the same thing for a whole week just using the phone till the battery runs out and then charge it for 5 hours... Now battery life is very good, EASILY last me through a whole day with moderate to heavy usage. Lots of tapatalk 2, browsing, messaging and emails. I'm also running ARHD rom so that also help but nonetheless battery calibration is important so do it people
Never calibrated or whatever, have excellent (for me) battery life.
I thought we got over this myth.....
OP, do you have some supporting evidence, or even logic, that shows that doing exactly what you shouldn't do with a li-po battery has a positive effect?. Have you A /B tested it against another handset where you treated the li-po battery as recommended? I.E, avoiding fully discharging it and preferably charge from around 50%.
I get up to 4 hours screen time and 4-5 days standby having treated the battery this way with just a handful of total discharges (obviously it not always possible to avoid)
farnsbarns said:
OP, do you have some supporting evidence, or even logic, that shows that doing exactly what you shouldn't do with a li-po battery has a positive effect?. Have you A /B tested it against another handset where you treated the li-po battery as recommended? I.E, avoiding fully discharging it and preferably charge from around 50%.
I get up to 4 hours screen time and 4-5 days standby having treated the battery this way with just a handful of total discharges (obviously it not always possible to avoid)
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Click to collapse
Do I have evidence? No I didn't capture any screentshots or anything. This is from my personal experience I'm not here to prove to you anything, just sharing how my battery life is improving cause of battery calibration. My phone no longer display for example 25% then soon as I use it jumps to 19% like before. It decreases gradually and I get excellent battery life. Same thing with my I pad when is discharge it completely then recharge it, I see better battery life and better battery % display accuracy.
barondebxl said:
Do I have evidence? No I didn't capture any screentshots or anything. This is from my personal experience I'm not here to prove to you anything, just sharing how my battery life is improving cause of battery calibration. My phone no longer display for example 25% then soon as I use it jumps to 19% like before. It decreases gradually and I get excellent battery life. Same thing with my I pad when is discharge it completely then recharge it, I see better battery life and better battery % display accuracy.
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Click to collapse
Li - po batteries do improve with the first few charge cycles but this has nothing to do with the fact you have run it flat. Doing so regularly will shorten the life of the battery. You stated that it had a positive effect but you have no comparison and it flys in the face of the laws of physics and chemistry. The point of my post was to make it clear to anyone who doesn't know better that it's bs and will be detrimental to battery life.
Though LiPo batteries don't like to be overly discharged, I'd stop short of saying that this is detrimental to your battery. LiPo batteries shouldn't be left at low voltage (dead) for long periods of time, but discharging it entirely and then recharging it is well within the designed specs of the battery. It's more the fact that they lose charge over time, and therefore leaving them dead which is considered their minimum safe voltage, will then allow them to drain further themselves over time to a point where it's detrimental. I suppose, though, a battery drained to 0% every single time is more likely to have a shorter life than a battery discharged only to 20% before recharging.
The Android system does calibrate the battery life, which is more of what you'd be doing, but you aren't going to get more battery life out of a battery by discharging it entirely, then charging it fully, it just doesn't work like that. LiPo batteries don't have issues with memory or needing to be discharged or charged to a certain point for optimum performance.
I 100% attribute bad battery life when you first get a phone to simply being you pulling it out and turning it on more than you normally would. It's nearly impossible, and damn near subconscious, but when you get a new toy, you're obviously going to pull it out to look at it, play with it, load every different app it has, etc, as well as doing the same when you show it to people. I think even if you think you didn't play with it a lot when you first got it, you likely still do. But that's just my opinion.
https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT
read that calibration not needed
AJerman said:
Though LiPo batteries don't like to be overly discharged, I'd stop short of saying that this is detrimental to your battery. LiPo batteries shouldn't be left at low voltage (dead) for long periods of time, but discharging it entirely and then recharging it is well within the designed specs of the battery. It's more the fact that they lose charge over time, and therefore leaving them dead which is considered their minimum safe voltage, will then allow them to drain further themselves over time to a point where it's detrimental. I suppose, though, a battery drained to 0% every single time is more likely to have a shorter life than a battery discharged only to 20% before recharging.
5
The Android system does calibrate the battery life, which is more of what you'd be doing, but you aren't going to get more battery life out of a battery by discharging it entirely, then charging it fully, it just doesn't work like that. LiPo batteries don't have issues with memory or needing to be discharged or charged to a certain point for optimum performance.
I 100% attribute bad battery life when you first get a phone to simply being you pulling it out and turning it on more than you normally would. It's nearly impossible, and damn near subconscious, but when you get a new toy, you're obviously going to pull it out to look at it, play with it, load every different app it has, etc, as well as doing the same when you show it to people. I think even if you think you didn't play with it a lot when you first got it, you likely still do. But that's just my opinion.
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Click to collapse
The dtremental effect will be minute, accepted, but there is certainly nothing to gain. That's what I wanted to make clear.
There is a lot of guesses portrayed as fact on here these days, as well as conclusions drawn from dubious experience with no control or comparisons. Just trying to combat this misinformation.
farnsbarns said:
The dtremental effect will be minute, accepted, but there is certainly nothing to gain. That's what I wanted to make clear.
There is a lot of guesses portrayed as fact on here these days, as well as conclusions drawn from dubious experience with no control or comparisons. Just trying to combat this misinformation.
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Click to collapse
I know what you mean. I usually get yelled out when I try to do that and help, haha.
farnsbarns said:
Li - po batteries do improve with the first few charge cycles but this has nothing to do with the fact you have run it flat. Doing so regularly will shorten the life of the battery. You stated that it had a positive effect but you have no comparison and it flys in the face of the laws of physics and chemistry. The point of my post was to make it clear to anyone who doesn't know better that it's bs and will be detrimental to battery life.
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Click to collapse
It flys in the face of the laws of physics??!!!??? What the hell are you talking about? I'm talking about my battery life getting better and better cause of draining it and recharging it not the gravity of the moon or Einstein theories, relax.
farnsbarns said:
The dtremental effect will be minute, accepted, but there is certainly nothing to gain. That's what I wanted to make clear.
There is a lot of guesses portrayed as fact on here these days, as well as conclusions drawn from dubious experience with no control or comparisons. Just trying to combat this misinformation.
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Click to collapse
LMAO, get out of your basement.
AJerman said:
I know what you mean. I usually get yelled out when I try to do that and help, haha.
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Click to collapse
Yep, I just don't care if the truth means a fan of cereal box science gets their knickers in a twist. More than half of what gets posted now is erroneous guess work, assumptive, misleading noise that serves no purpose other than to dilute the factual helpful discussion.
I've never been much good at biting my lip.
farnsbarns said:
Yep, I just don't care if the truth means a fan of cereal box science gets their knickers in a twist. More than half of what gets posted now is erroneous guess work, assumptive, misleading noise that serves no purpose other than to dilute the factual helpful discussion.
I've never been much good at biting my lip.
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Click to collapse
That's fascinating..... I wonder where that battery calibration thing started in the first place, I guess someone made that up just to mess with people right?
barondebxl said:
That's fascinating..... I wonder where that battery calibration thing started in the first place, I guess someone made that up just to mess with people right?
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Click to collapse
For batteries that needed calibration? And as I said, a lot of people confuse calibrating the battery meter in the OS with calibrating the battery itself.
Read, learn: http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
AJerman said:
For batteries that needed calibration?
Read, learn: http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
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Click to collapse
Read this, point 2.
http://osxreality.com/2009/07/18/4-tips-to-extend-your-lithium-battery-life/
To all of you who say that using up your battery shortens it's life, I have just one thing to say: the phone will never let you fully discharge the battery. Approx. 3.5V at which the phone turns off is far from the voltage of fully discharging (and potentially damaging) the battery.
Sent from my HTC One X using xda premium
barondebxl said:
Read this, point 2.
http://osxreality.com/2009/07/18/4-tips-to-extend-your-lithium-battery-life/
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Click to collapse
As I said, this has nothing to do with calibrating the battery, and everything to do with calibrating the battery meter in the OS, which, by the way, will never be off by HOURS, maybe by a couple of minutes. This only needs to be done once every however many cycles, that site says 30, but I wouldn't even bother doing it more than once every couple of months at the most as you likely won't see any real gain from doing so, and it IS theoretically bad to overly discharge your phone. Doing it once in a while won't damage anything, but doing it every cycle, or every day for a week or anything like that is excessive, unnecessary, and, as farnsbarns mentioned, can wear on your battery.
Battery meter calibration has been discussed on this message board countless times, and every time it's proven to be nearly pointless in real tests.
Edit: This is not to mention that I think a lot of batteries/phones have charging circuits built into them that allows them to properly check the battery level itself, meaning calibration of the OS isn't necessary. I could be wrong on this, but I'm pretty sure I've read about this before.
AJerman said:
As I said, this has nothing to do with calibrating the battery, and everything to do with calibrating the battery meter in the OS, which, by the way, will never be off by HOURS, maybe by a couple of minutes. This only needs to be done once every however many cycles, that site says 30, but I wouldn't even bother doing it more than once every couple of months at the most as you likely won't see any real gain from doing so, and it IS theoretically bad to overly discharge your phone. Doing it once in a while won't damage anything, but doing it every cycle, or every day for a week or anything like that is excessive, unnecessary, and, as farnsbarns mentioned, can wear on your battery.
Battery meter calibration has been discussed on this message board countless times, and every time it's proven to be nearly pointless in real tests.
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Click to collapse
Nothing to do with battery calibration? Have you read the article? If you want accurates readings, you want your battery life to improve, you probably want to calibrate your battery. I've had the one x for almost two weeks and my phone doesn't jump from 50% to 42% randomly anymore cause I've calibrated the battery. If you want more reading : http://www.themobileindian.com/news/5547_How-to-calibrate-smartphone-battery
No one here said that it is something you need to do everyday, but when you get your phone I suggest doing it. Then once it's calibrated do it once a week or every other week.
AJerman said:
Edit: This is not to mention that I think a lot of batteries/phones have charging circuits built into them that allows them to properly check the battery level itself, meaning calibration of the OS isn't necessary. I could be wrong on this, but I'm pretty sure I've read about this before.
Click to expand...
Click to collapse
they do have charging circuits I just read it, still you want accurate readings. Even my iPad sometimes displays wrong battery percentage when I don't let it discharge. Sometimes I charge it when it's at like 28% for example, let it fully charge but then it drains weirdly.
barondebxl said:
Nothing to do with battery calibration? Have you read the article? If you want accurates readings, you want your battery life to improve, you probably want to calibrate your battery. I've had the one x for almost two weeks and my phone doesn't jump from 50% to 42% randomly anymore cause I've calibrated the battery. If you want more reading : http://www.themobileindian.com/news/5547_How-to-calibrate-smartphone-battery
No one here said that it is something you need to do everyday, but when you get your phone I suggest doing it. Then once it's calibrated do it once a week or every other week.
Click to expand...
Click to collapse
You are failing to listen to what I'm saying. I've read the article, and many others like it. There is no such thing as calibrating Lithium batteries, and it's a common misconception, so I have full faith that you can find countless web pages telling you you can. It comes from the old mindset of batteries that did need certain charge cycles (full discharge, full charge, etc) to maintain life.
Again, the only thing you calibrate when you run the battery all the way down is the OS's battery meter. Android shuts itself down automatically when battery voltage hits a level that is considered empty or dead, regardless of what the battery meter says, so that calibration gives you no more life out of your battery at all.
However, I think we all run down our phones to the point where they auto shutdown more than frequently enough to consider the battery meter calibrated very close at any given time. Battery meter calibration is more an issue on systems that stay plugged in frequently and don't often get discharged, this is usually with laptops used as a desktop replacement, not phones.
We aren't trying to be mean or anything, just trying to squash the continued misconception that calibrating the battery is possible or has any effect.
How to smart charge the Galaxy Note 2 battery
The way you charge your device is very important and it can affect your battery life a lot. Charging it wrong will make it drain quickly and the battery will also last less, requiring a replacement after 1-2 years of use.
To smart charge the Galaxy Note 2, you have to only plug it in when the battery is below the 10% level and never unplug it until it is 100% charged.
You should also know that when your battery reaches 10%, it will last longer than usual. To understand better, it will drain much slower from 10% to 0% than from 20% to 10%. So don’t panic if your battery level is low, because it can hold for a very long time, especially in standby mode.
Never use low quality chargers, because they can damage your battery hand even the device. Only use original Galaxy Note 2 chargers and try not to use the USB cable for charging your device. Always charge it in the wall socket, because the USB port power fluctuates and can damage the battery. Also it will charge much slower.
Battery maintenance
Usually the battery is the first smartphone component that dies, having a lower lifecycle. Though you can prevent this by taking care of it.
The best way to prevent it from getting damaged is to avoid pulling it from its socket. The battery has some golden pins that can scratch or get dusty, so if you pull it out and back in multiple times you can damage the pins.
In order to help the battery work the way it should, always make sure to clean the pins with a soft cloth whenever you pull it out. This way you will keep dust away from them.
When buying a new Galaxy Note 2 battery, make sure to get an original one, as other might have a lower battery life and can have a shorter lifecycle.
Increase Galaxy Note battery life by disabling features
The Samsung Galaxy Note 2 N7100 comes with tons as features, like we just said at the beginning. But nearly all of them are big battery eaters and you need to be careful when activating them.
The CPU and display drain a lot of battery, so make sure to setup the display to turn off faster. Also don’t keep it turned on when you don’t need it.
3G and 4G are the biggest battery drainers on a smartphone. You should only keep the 3G or 4G network activated when you use the internet actively. If you really need a permanent internet connection, then go for 2G, though this eats your battery too. The best way is to only connect to the internet when you need it.
Do not keep the WiFi,Bluetooth and GPS activated when you don’t use them. They can drain your battery very fast even in idle mode, so make sure to disable them when you don’t need them anymore.
Live wallpapers are also big battery drainers. They consume a lot of CPU and RAM resources and also use your display more intensively. So you should never choose a live wallpaper. The most battery-friendly wallpaper is a dark one, which doesn’t use any CPU resources and also doesn’t requires the display to be very bright.
You also have to take care what apps you install and always look at Settings > battery to see who drains the most battery. There are some apps than run continuously and prevent your device from getting into “Deep Sleep.” This is the standby mode that helps the device conserve very much energy. If an app prevents it from getting into this mode, you will notice a very low battery life.
Please let us know if you found other ways to increase the Galaxy Note 2 battery life. We are also curious for how long did you manage to get your device running between charges.
wow thanks mate quite a good one!
Thanks!
Also you should add that if you always need to be connected to internet then its better to keep connected through WiFi as it consumes less energy than using EDGE or 3G.
Sent from the rabbit hole.
Thanks it's useful
What?
No.
1. Deep charge cycles on a lithium battery accelerate the failure of the battery.
2. The device can determine the type of source it's plugged into, computer usb ports are safe.
3. Non branded chargers are safe if they are quality made. You just need to stick with quality and 2 amp/ short cables for decent charge times.
Sorry man, but those 3 things you listed are some pretty big misinformation that can easily be verified.
There's nothing "smart" about doing a deep discharge if your trying to preserve a 10 dollar battery.
After installing the new rom..I charge my battery full..then remove battery stats then drain full to zero for cycle.after complete ..I use smart charge method..that is .when my cell battery below to 10 something like 9 or 8 then I connect charger .and really it helps me alot
---------- Post added at 04:09 PM ---------- Previous post was at 04:07 PM ----------
Smart charge method is kinda usefull
purged363506 said:
What?
No.
1. Deep charge cycles on a lithium battery accelerate the failure of the battery.
2. The device can determine the type of source it's plugged into, computer usb ports are safe.
3. Non branded chargers are safe if they are quality made. You just need to stick with quality and 2 amp/ short cables for decent charge times.
Sorry man, but those 3 things you listed are some pretty big misinformation that can easily be verified.
There's nothing "smart" about doing a deep discharge if your trying to preserve a 10 dollar battery.
Click to expand...
Click to collapse
+1
Deep charge cycles are for avoid "memory effect" and It apply to old Ni-Cd / Ni-MH batteries. Don't apply for modern Li-Ion battery. There is much more chance that the deep drain affect negatively the battery of a GN2.
Li-Ion battery keep better performance if never going less than 50%. But the difference will be barely noticeable.
Personally, after several tests on my own, I don't bother anymore with that (I mean for the modern Li-Ion type). Sometime you have a great battery, sometime a crappy one from a bad batch. I have seen battery died fast after "by the book" charges cycles. And others seem to last forever, no matter how bad I maintained her (like my 2006's laptop).
Anyway, thanks for sharing, even if you are wrong on this one
I don't know if you're wrong or right because when you search the net about battery charging, you find everything and it's opposite. But I disagree on three points:
- The battery is beefy and you really have to work hard to make it last less than a day
- I bought this incredible phone because of it's features. If I have to cut half of them to avoid drain, why did I buy it?
- I dare say that most of the people who buy a Note 2 somewhere are a bit "Tech-Nuts". If you're not, I am, so I don't mind if my battery doesn't last two years because I'm not sure that I will still have this phone all that long.
And if I do and the battery is dead, I'll buy a new, genuine, Sammy one to continue.
What's it worth to live 100 years if you can't have a drink from time to time, maybe have a smoke or whatever? Plug your phone in or out and use your GNote 2 happy
Lol everything has its cost turn off everything to save battery what is fun in that I have a smartphone to use it and be happy with animations and display and games otherwise get a 3310 it is best
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