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Is it true charging li-ion no more than 80% increase its life?

From http://www.wmskins.com/blog/how-to-increase-battery-life-of-windows-mobiles:
1. A Lithium Ion battery should never be charged to 100% or fully Discharged. The famous 80-20 rule is applicable here as well, though in a different way. Charging to 80% increases battery life.
2. Don’t wait for full discharge, charge it frequently. Keeping the battery near to 80% always, gives better life. This is also what many vendors claim as “memory effect”.
I followed that advice and then after a few weeks, when once I charged it to 100%, it dropped quickly to 80%! and has been like that since. now I don't give a damn to that rule and charge my phone to 100% instead.

At this point, I would advise you do a full charge and deep discharge of your phone. Just to allow the phone to calibrate itself to the battery again.
However, I would advise against running programs to intentionally drain it at a high draw. So instead of playing 5 hours of FPSECE to drain it flat, just let it sit on standby and use it as you normally would, until it dies. Then charge it back up in one continuous charge (refrain from unplugging until it goes back to 100%). Hopefully that will restore the accuracy of your battery meter by a bit.
And IMHO, the article you included discusses things about batteries that are no longer true....
2. Don’t wait for full discharge, charge it frequently. Keeping the battery near to 80% always, gives better life. This is also what many vendors claim as “memory effect”.
No. "Memory effect" is, in laymen terms, the battery not being able to hold above a certain charge after being repeatedly discharged from the same capacity. E.g. being discharged at 80%. It doesn't "give battery life" -- in fact it kills your battery's capacity.
This is a term more relevant for old NiCd batteries. LiONs and most NiMH batteries have very weak/no memory effect.
3. Every battery has limited Full charge-discharge cycles. Of the order of 300+. In other words a typical phone battery can be fully charged/discharged 300 times. Doing more frequent charges, as specified in point #2, will increase overall life.
Partially true. Every battery can be charged a number of times before its ability to hold a charge deteriorates. Usually this is around 300, though the exact number varies between individual batteries. However, the concept of a "cycle" isn't exact -- just because you charged from 60-80% (or whatever) doesn't mean you didn't use a cycle. It's really a continuum, and should only be conceptualized as the battery losing its ability to be charged and hold a charge, the more times you charge it.
4. During first time use (when the battery is new) don`t use it till its fully charged. This is why it is always written on manuals “let the device charge for 2-3 hours”.
The necessity of preconditioning is controversial now. There is little evidence to suggest that devices nowadays benefit from preconditioning, and likewise there is little evidence that not doing so harms battery longevity. Many manuals these days simply omit to mention preconditioning.
5. Best way to increase battery life is Not to use it. If you keep AC power plugged in on your phones, keeping the battery at 80% (as in #1), your battery will last longer. Though discharging it once in a month would be must in such cases.
Partially true. Not using your battery does indeed help its longevity, but not by plugging into the AC. Heat is a LiON battery's enemy, and plugging it into your wall will generate heat that is ultimately bad. This translates to laptop batteries as well -- if you want to store a laptop battery, the best bet is to discharge it to 40%, then put it somewhere cool (even the fridge if you want).
Also I would say doing a deep discharge once a month is too frequent. Once every 2 or even 3 months is more appropriate.
Finally, LiON batteries themselves have a shelf life. So even if you let them sit there, they will lose their function after a few years. Just so yo uknow.
6. Surrounding temperature contributes a lot. Colder weather gives better battery life. So make sure your cellphone doesn’t overheat, if it does, find ways to keep it cool.
True. And that's why you shouldn't leave it plugged in.
Learn more about batteries here: http://www.batteryuniversity.com/

felixdd said:
E.g. being discharged at 80%. It doesn't "give battery life" -- in fact it kills your battery's capacity.
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is that so? why? so i guess now my battery's capacity has lessened. damn the article.
have drained my battery to 1% and charged it to 100%. let's see how it goes from here..

good subject for discusion. WM user or not the battery life and the tricks of LION only a few knows.
1.i have two batteries for my HTC. he original battery and one with 2800mAh. Does my phone cofused if i change tha batteries aternately?
2. if ai want to work with my phone for hours is it better to connect it with the charger?
3. Wich kind of charging is better? with USB cable from pc or wall charger.

I have the option in my BIOS for my laptop which says an 80% charge will prolong the lifespan of the battery.
Batteries must undergo a fair bit of research (for environmental impact reasons if nothing else!) and to have such a bold statement to me indicates that its an obvious fact to battery researchers.
Given ive lay in bed this morning messing about on facebook and setting up rss feeds on my phone and emptied a full battery I dont think Id ever stop charging at 80%. Ill just buy another battery!

i really doubt cold weather improves battery life, numerous times my family and I brought electronic products to cold countries and the Battery life always drops at a much quicker rate

dan138zig said:
is that so? why? so i guess now my battery's capacity has lessened. damn the article.
have drained my battery to 1% and charged it to 100%. let's see how it goes from here..
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You are taking what i said out of context.
What I'm saying is that IF your battery had a memory effect as the original article claimed, then charging the battery to only 80 will create a memory at 80, which would be worse for your battery. I'm merely trying to point out an inconsistency in there article.
However, I went on to say that li ON batteries do not have a memory effect. So more relevant to the real world is the fact that our batteries will not experience memory as claimed by the article.

Two main things kill lithium batteries, heat and time as they promote deposits forming in the electrolyte, which reduces the capacity of the battery.
So, buying a "spare" battery at the time you buy a phone with a plan on using it when the original battery starts to fail is a bad idea as the spare battery would be slowly deterorating on the shelf.
Deep charges rather than top up charges are bad as they produce more heat inside the battery, although doing it if your battery doesn't seem to be holding it's chage is a good idea as it should recalibrate the phone's battery level software.

To paraphrase the old saying, " blogs and opinions are like a##holes, everyone has one "
I have followed the links in this thread and so far I have just read unsubstantiated opinion.
I have used " cordless " electronics for most of my life and have used all kinds of batteries extensively as well as talked to company reps and battery " experts ".
Nickel Cadmium batteries had memories. The batteries had to be conditioned and fully charged and discharged. The new Lithium Ion batteries were advantageous , not only because they held a bigger charge and lasted longer, but also because they have NO memory. The latest example being, I regularly charged my Tilt battery to all levels of charge. Mostly 100% everyday and ran it down to 5% most times before charging it again. I used it a lot and charged it a lot. and it lasted 2 yrs.
The only difference I have really noticed in batteries has nothing to do with the way you charge it. It has to do with " getting what you pay for " I have had quality batteries really show their quality and $ 12 batteries give me up to and only my $12 worth.

Charging Lithium Ion Batteries to 80%
denco7 said:
To paraphrase the old saying, " blogs and opinions are like a##holes, everyone has one "
I have followed the links in this thread and so far I have just read unsubstantiated opinion.
I have used " cordless " electronics for most of my life and have used all kinds of batteries extensively as well as talked to company reps and battery " experts ".
Nickel Cadmium batteries had memories. The batteries had to be conditioned and fully charged and discharged. The new Lithium Ion batteries were advantageous , not only because they held a bigger charge and lasted longer, but also because they have NO memory. The latest example being, I regularly charged my Tilt battery to all levels of charge. Mostly 100% everyday and ran it down to 5% most times before charging it again. I used it a lot and charged it a lot. and it lasted 2 yrs.
The only difference I have really noticed in batteries has nothing to do with the way you charge it. It has to do with " getting what you pay for " I have had quality batteries really show their quality and $ 12 batteries give me up to and only my $12 worth.
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I have a Nissan Leaf. It is clear that the engineers have spent a LOT of time thinking about how to maximize the life of the battery in the car. One of the options the car come with is to ALWAYS charge the batteries to 80%. In fact, they've gone as far as to add a button on the dashboard to override that setting in cases where a 100% charge is needed. According to the documentation that comes with the car, this is the single most important step to prolonging battery life. Next is frequent charges. Next is monitoring battery temperature which is constantly shown in a BIG display on the dashboard. In general, a good way to think about a lithium ion battery is that over its life you're trying to maximize the amount of power stored and then subsequently removed from the device. From the research I've done, if the "charging/discharging life" of the battery were cycles that swung from 100% to 0% you might get X kwHrs of power "moved" through the battery, yet if you were to limit charges to 80% and constantly charge it after each use, you could expect at least 2X! So it's a big deal. I live in Bellevue, Washington which has a very mild climate and have put 26,000 miles on this car in the last 2 years, making mostly small 3-to-20 mile trips, and I routinely charge the car when I pull into the garage, and would estimate that the battery has been charged well over 1000 times. To date, there is no detectable loss in battery capacity; the first indication of which would appear on the car's instrumentation when just over 4% of the charging capacity of the car has been lost.

My Sony VAIO Pro 13 actually offers the 80/20 option in Power Settings. However, I do not use it.

Who started this Lithion Ion battery conditioning.

There is no “break-in” or “conditioning” required for the Li-ion batteries. They do not need the old “fully discharge – fully charge” routine for the initial three charges as was recommended on older battery technologies. For a number of years now, the advice has been to fully drain a new rechargeble battery at least three times in a row, then do so at least once a month from then on in order to ‘condition’ it. This is designed to prevent ‘memory’ effects and to prolong the life and capacity of the rechargeable battery.
Unfortunately, it appears that this advice is not only incorrect but could be causing battery damage in that it’s reducing the shelf-life of your equipment.
Modern Li-ion batteries apparently do not suffer from memory effects. All that matters is how many recharging cycles they support. The more cycles they are put through, the less effective they become at holding a charge down the line. The caveat, however, is that you can accelerate their decline by forcing them to drain deeper and deeper.
According to Battery University, the depth-of-discharge on a Li-ion device will determine its ultimate cycle count. What this means in practice is that you should recharge your battery frequently and let it drain as little as possible in between recharges. Partial discharges are better.
As expected, high temperatures are also disastrous to the lifespan of Li-ion batteries. Interestingly, high-voltage charging has a similar effect. Higher voltages will charge the battery faster but damage it. The article suggests that user-regulated voltages for laptop batteries might be a useful way to allow the consumer to decide which is more important to them in their daily useage – faster recharge or longer life.
Always store a Li-ion battery full charged. Not doing so will reduce its lifespan and capacity.
Similarly, it would seem that keeping it connected to a power supply when it is 100% charged is not very wise either.

Thanks for posting this! I was wondering something similar after I got my Sensation. I was looking to improve my battery life and was wondering if the fact that I've let my battery discharge irregularly only a handful of times along with hardly ever leaving it off the USB laptop cable at home had anything to do with it. I'll be sure not to discharge it unnecessarily from now on.

Tacjim said:
There is no “break-in” or “conditioning” required for the Li-ion batteries. They do not need the old “fully discharge – fully charge” routine for the initial three charges as was recommended on older battery technologies. For a number of years now, the advice has been to fully drain a new rechargeble battery at least three times in a row, then do so at least once a month from then on in order to ‘condition’ it. This is designed to prevent ‘memory’ effects and to prolong the life and capacity of the rechargeable battery.
Unfortunately, it appears that this advice is not only incorrect but could be causing battery damage in that it’s reducing the shelf-life of your equipment.
Modern Li-ion batteries apparently do not suffer from memory effects. All that matters is how many recharging cycles they support. The more cycles they are put through, the less effective they become at holding a charge down the line. The caveat, however, is that you can accelerate their decline by forcing them to drain deeper and deeper.
According to Battery University, the depth-of-discharge on a Li-ion device will determine its ultimate cycle count. What this means in practice is that you should recharge your battery frequently and let it drain as little as possible in between recharges. Partial discharges are better.
As expected, high temperatures are also disastrous to the lifespan of Li-ion batteries. Interestingly, high-voltage charging has a similar effect. Higher voltages will charge the battery faster but damage it. The article suggests that user-regulated voltages for laptop batteries might be a useful way to allow the consumer to decide which is more important to them in their daily useage – faster recharge or longer life.
Always store a Li-ion battery full charged. Not doing so will reduce its lifespan and capacity.
Similarly, it would seem that keeping it connected to a power supply when it is 100% charged is not very wise either.
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I have to disagree with this to an extent, as its preferred to discharge and recharge the first times, as it freshens the cells and calibrates the phone to the battery.
But after this you should recharge it when it's at 30-40%
Also you should not leave a lithium batter fully charged when storing it, but rather have it at 60% and throw it in the refrigerator. This is what i have been doing to all mine batteries, but don't let it freeze though, this will harm the battery!

There's nothing worse than a know-it-all Uni student! If there's a real technician or scientist on the matter I would like to hear their advice.
As I am a mechanical technician I use a variety of battery powered tools all of which are Li-ion, I like to condition all my batteries but for the few that cannot be conditioned due to lack of time those particular batteries are, weaker, last less time and overall die out faster.

Flashmore said:
There's nothing worse than a know-it-all Uni student! If there's a real technician or scientist on the matter I would like to hear their advice.
As I am a mechanical technician I use a variety of battery powered tools all of which are Li-ion, I like to condition all my batteries but for the few that cannot be conditioned due to lack of time those particular batteries are, weaker, last less time and overall die out faster.
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Haha, it's not a Uni student, its batter university, a well known webpage
http://batteryuniversity.com/

Utking said:
Haha, it's not a Uni student, its batter university, a well known webpage
http://batteryuniversity.com/
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I see, so I suppose it just posted this all on its own?

Flashmore said:
I see, so I suppose it just posted this all on its own?
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No this man did: Isidor Buchmann
http://www.cadex.com/about/people.asp
http://www.myistop.com/blogs/greenbatterys/isidor-buchmann-battery
http://nutsvolts.texterity.com/nutsvolts/200612/?folio=58#pg58
I believe i can say i trust him

Are you sure? sounds more like Dracula's side kick, haha

Utking said:
I have to disagree with this to an extent, as its preferred to discharge and recharge the first times, as it freshens the cells and calibrates the phone to the battery.
But after this you should recharge it when it's at 30-40%
Also you should not leave a lithium batter fully charged when storing it, but rather have it at 60% and throw it in the refrigerator. This is what i have been doing to all mine batteries, but don't let it freeze though, this will harm the battery!
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This is exactly what I do. Last time I drained a phone down to 0% it killed the battery and wouldn't hold charge like it used to (was fine before I did it). Was on an old LG. Same thing happened to a friends phone too. From then on I try and tell everyone to never do it as well.

While I'm sure you have your sources, I have to disagree. When I got my vibrant, I didn't condition it at all, battery life was horrible. I bought a new battery (the same one), conditioned it, and it was 10000x better.
But I do agree that batteries have become much greater than they used to be about this.
Batteries are always a fun topic

This comes from rooted phones and batterystats.bin
It's recommended when you flash your new ROM that you turn off the phone. Than fully charge it. And while still charging removing batterystats.bin so your android phone knows 100% and than let it die down so it knows 0%.
I think that is where this all came from.

Flashmore said:
There's nothing worse than a know-it-all Uni student! If there's a real technician or scientist on the matter I would like to hear their advice.
As I am a mechanical technician I use a variety of battery powered tools all of which are Li-ion, I like to condition all my batteries but for the few that cannot be conditioned due to lack of time those particular batteries are, weaker, last less time and overall die out faster.
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The only thing I'm trying to do is help people from shortening the life of their batteries by listening to people who don't have a clue what they're talking about. Since you seem to spout out that "unconditioned" lithium Ion batteries are weaker, last less time and die out faster...lets see some professional resources from your "know it all" conclusion?

By no means an expert, just putting in my 2cent, i think people seem to mix the ideas of battery conditioning and recalibration. I think it IS useful to recalibrate batteries by draining the battery to 0% so the phone can recognize the accurate battery levels. However in terms of the battery, its always the same and there is no "reconditioning". the drain/recharge cycle is only useful for the PHONE for accurate recognition of battery level.

personally, i havn't bought into the conditioning aspect.. i can afford the $10-$15 it takes to replace a battery when it dies out and i always charge before it is dead (min 30%); (on the sensation so i dont lose temp root) but also because usually it would take 10 minutes or so for it to get enough juice to turn back on (in the iphones/touch's case.. but in any case i had always learnt that NiMH batteries you could drain fully and make sure to fully charge before you use them again; whereas Li-ion you could charge at 30% keep your good life and use the device at the same time pretty simple really

c19932 said:
By no means an expert, just putting in my 2cent, i think people seem to mix the ideas of battery conditioning and recalibration. I think it IS useful to recalibrate batteries by draining the battery to 0% so the phone can recognize the accurate battery levels. However in terms of the battery, its always the same and there is no "reconditioning". the drain/recharge cycle is only useful for the PHONE for accurate recognition of battery level.
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Agreed. From what I've read this hasn't anything to do with battery capacity or memory effect, it's so the phone can calibrate itself correctly to the battery inserted using the batterystats file giving a better indication of peak to zero.

Tacjim said:
The only thing I'm trying to do is help people from shortening the life of their batteries by listening to people who don't have a clue what they're talking about. Since you seem to spout out that "unconditioned" lithium Ion batteries are weaker, last less time and die out faster...lets see some professional resources from your "know it all" conclusion?
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Well you know what they say it takes one to know one!
As well as that I havent "spouted" anything (well not here anyway hehe)
My conclusion is this, dont believe everything you read, what a cliché
Seriously though I already gave my "real" practical know-it-all conclusion so unless you have somethijng to disprove it go and you know what

will fast charging will damage battery.?
I want to use fast charger for Nexus 5. Original charger gives 5.6 volts and 1.2 Ampere output.
Some post I found on xda which shows that fast charging working perfect on nexus 5,
can OP tell me that fast charging will affect battery or not? If it affects then how can I find its getting affected?
Thread which shows nexus 5 fast charging works perfectly.
http://forum.xda-developers.com/goo.../hands-best-fastest-cheapest-nexus-5-t2729066

[GUIDE] How to prolong the life of your Li-Ion battery

First off this isn't a guide about how to make your battery last longer between charges, at least it isn't yet. If a demand arises I will happily facilitate. *EDIT* For simplicity's sake I am including a link to V7's battery guide which addresses increasing the time between charges. ✭[GUIDE][26-07-2016]Extreme Battery Life Thread(Greenify+Amplify+Power Nap)✭This guide is about reducing wear that happens from many thing we all either knowingly do; out of a possible misunderstanding, or ignorance. All of this information is available doing a simple Google search, I am posting it here though for those who otherwise would not think to Google it. Furthermore I claim credit for absolutely none of this, but I do hope you find it helpful.
HOW TO PROLONG YOUR Li-Ion BATTERY'S LIFE​
1) Keep your battery at room temperature: Heat is the worst enemy of your cell phones battery. So keeping your battery at room temperature (65-75*F) is the first step towards prolonging your battery's life. According to Battery University
each 8°C (15°F) rise in temperature cuts the life of a sealed lead acid battery in half.
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They also go on further adding
Once the battery is damaged by heat, the capacity cannot be restored.
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There are many things you can do to keep your battery cooler, such as taking it off the charger when the phone is done charging, and avoiding prolonged continuous usage. Also avoid leaving your phone in your car, it gets upwards of 140* in a car during the summer. The worst thing that can happen to a Li-Ion battery is a full charge and high heat, so avoid charging your phone until your car has cooled off if you are charging your battery in the car. Heat is by far the greatest factor when it comes to reducing the lifespan of a Li-Ion battery.
2) Use partial-discharge cycles: According to lancair.net
Using only 20% or 30% of the battery capacity before recharging will extend cycle life considerably
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Other sites I read while researching this stated that users should use up to 80% of their energy before recharging, they were all consistent with regards to a few things including: avoiding full discharges will prolong battery life, and it takes several partial charges to use one full charge cycle. Additionally Li-Ion batteries do not have "charge memory", but your digital device most likely does. Discharging the battery until cut off after every 30 charge cycles re calibrates the devices gauge.
3) Avoid keeping your battery at 100%: Every source I referenced for this guide said the same thing about keeping your battery at a full capacity, but oranageinks.com explains it most simply by stating
Permanent capacity loss is greatest at elevated temperatures with the battery voltage maintained at maximum (fully charged).
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4) If you are going to store your battery for an extended period store it at about 50% charged: This goes hand-in-hand with number 3. Also keeping the battery cool during extended storage will slow deterioration. Keeping the battery in a sealed bag or tupperware in your refrigerator is okay, but storing your battery in the freezer is not. When a battery is fully charged oxidation is occurring at its highest rate, and oxidation is essential corrosion. Oxidation occurs whether the battery is in use or not, for this reason it is better to get a high capacity battery rather than a spare. So with this said it almost should go without saying that if you can, buy batteries with a recent manufacture date.
5) Avoid completely discharging your battery: Lancair.com states:
Very deep discharges will quickly, permanently damage a Li-ion battery. Internal metal plating can occur causing a short circuit, making the battery unusable and unsafe. Most Li-ion batteries have protection circuitry within their battery packs that open the battery connection if the battery voltage is less than 2.5 V or exceeds 4.3 V, or if the battery current exceeds a predefined threshold level when charging or is charging
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If you found this helpful please don't forget to hit the "Thanks" button

now that explain why my battery drain so fast,my phone temperature is a bit high these days,thank you :good

I decrease my battry drain with installing som suitable kernal
this way realy effective in my device battry mangement

You're absolutely right, and you hit the nail on the head,
Saeedblack said:
realy[sic] effective in my device battry[sic] mangement
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But the physical battery itself needs care too. Device battery management is more related to how much power the CPU sees that the device has. Understanding how a Li-Ion battery works is kinda important at this point. So basically the positive electrode is made of Lithium cobalt oxide (cathode), or LiCoO2. The negative electrode is made of carbon (anode). When the battery is charging, ions of lithium move through the electrolyte from the positive electrode to the negative electrode and attach to the carbon. During discharge, the lithium ions move back to the LiCoO2 from the carbon. Over time the Lithium ions bond to the carbon thereby restricting the flow, creating resistance which decreases the battery's ability to deliver current. So properly caring for your battery is really the only thing that will slow the inevitable. Its kinda the same thing for a car...all cars eventually die, but if you take care of them they will last much longer than if you neglect them.

Thanks for this. It's not the usually same guide for battery improvementent.
My battery life got a little better.

Thanks mate, that's some good information.

Hi.
Just wondering:
in "5) Avoid completely discharging your battery"
Most battery calibration softwares say you SHOULD fully discharge your battery then fully charge it for a good calibration.
So, someone like me, who likes to try new roms, new nightlys all the time, are "slowly" burning the battery to ashes by calibrating it after every flash.

It looks like running the processor faster than specified (overclocking) can result in higher temperatures inside the device and faster battery wear as a result.

azraelus said:
Hi.
Just wondering:
in "5) Avoid completely discharging your battery"
Most battery calibration softwares say you SHOULD fully discharge your battery then fully charge it for a good calibration.
So, someone like me, who likes to try new roms, new nightlys all the time, are "slowly" burning the battery to ashes by calibrating it after every flash.
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YES you are slowly burning the battery out, by draining it after every flash. The battery is going to die inevitably anyways though, most of the sources I found suggest doing a "full drain" every 30 charge cycles. Perhaps this is when you should go ahead and do your battery calibration. Also a full drain is not exactly self-explanatory in this case. Your device may say that a battery has 1% of its energy left and to an extent it does, but the battery is designed to cut off before it gets too hot or too low. If you have a tendency to cut your phone back on after it dies then you will deplete the battery completely, possibly resulting in permanent damage.
adrian816 said:
It looks like running the processor faster than specified (overclocking) can result in higher temperatures inside the device and faster battery wear as a result.
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Yes O/C can raise temperatures of the device. Certain kernels run a little hotter than others. My device is currently O/C'd and isn't any hotter than normal when I am not using the device due to CPU governors and what not, and its only marginally hotter than it is when at the stock clock speed. Prolonged heavy use takes a toll on the battery, due to the heat its creating. Also don't let the little bit of heat increase stop you from O/C'ing your device. Many manufacturers use the same cpu with different clock speeds, EX Snapdragon S3 chip is used in the EVO 3D @ 1.2GHz, and the HTC Rezound @ 1.5GHZ from the factory. This is done to reduce power consumption on power hungry phones or to extend the life of a cpu that has proven itself reliable(such as in the example of the Snapdragon S3)...it also helps to market devices without spending more on development.

Good adwise! :good:

This is all very good advice. A lot of it I knew, but I learned a couple new things as well. Glad to see someone making it more easily available to our community!
Sent from my SGH-I777 using xda app-developers app

Found this same information when researching my netbook battery.Turns out there is a good reason it will sleep/hybernate/power off at 3 percent, can damage a cell. On the upside this one will charge faster.

Thanks for the information.
Sent from my GT-S5360 using Tapatalk 2

Oh god, by "avoiding keep it at 100%" you mean "don't use it constantly while charging", right?
I have a seriously problem.

Wish I could do something about #1. My phone can get pretty hot when I'm using it and I like to do a lot of things like playing games or dling torrents which gets it toasty.
Will definitely unplug before 100% from now on though. Thanks

Jane Shizuka said:
Oh god, by "avoiding keep it at 100%" you mean "don't use it constantly while charging", right?
I have a seriously problem.
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Yea that's pretty much the gist of it...heavy use while charging creates even more heat than just heavy use or just charging. Since doing the research for this thread I've been doing things a little differently myself. Instead of leaving it on the charger most of the day I charge it at night and use it til about 50% then charge it up to 80%...it may be in my head but I highly doubt it. Doing as I described I have had 1 full charge (from 40% to 100%) and a top off charge (50% to 80%) and my device has been on since yesterday morning (so 36 hours+ with only a 30% top off charge). This is with moderate use, and my phone is currently at 70%...MUCH better than before though.
This guide is still meant more for longer term physical battery care, but it appears to have helped extend time between charges.
zlc1 said:
Wish I could do something about #1. My phone can get pretty hot when I'm using it and I like to do a lot of things like playing games or dling torrents which gets it toasty.
Will definitely unplug before 100% from now on though. Thanks
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Try a different kernel, or underclocking your phone, that should help with the heat.

Thanks, I'll keep this in mind!

Thanks for the advice, but i thought discharge it completely wont do any harm to the battery since the protection circuit will stop at around 3..0-3.4 mV?

ryanshady said:
Thanks for the advice, but i thought discharge it completely wont do any harm to the battery since the protection circuit will stop at around 3..0-3.4 mV?
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That is about the point the device will cut off, but if you turn it back on like I used to until the device won't turn back on that's when the battery is completely discharged. Battery University goes on to say
Each cycle wears the battery down by a small amount. A partial discharge before charge is better than a full discharge. Apply a deliberate full discharge only to calibrate a smart battery and to prevent “memory” on a nickel-based pack.
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Link to article HERE
*EDIT*

i wish there's a way to stop charging once it reaches 85-95% like my laptop...

Fast battery drain from an year old device. Is there any way to slow charging speed?

So my 4a has been having fast battery drain since few months now. I remember it having very good battery life initially. However now it drains battery very fast.
This is also surprising since I keep brightness low due to me being sensitive to it.. and also keep the phone charged upto 80% capacity only as I read that it prolongs battery life.
One thing I could note is that the phone drains slower in the 80 - 100 % range if the phone gets fully charged occasionally.
Hence I have been suspecting the 'rapid' charging which is enabled by default on stock charger to be one cause.
Is there some way to enable slower charging like what happens in case of 'Adaptive charging' post 80% capacity? I hope that will lead to lesser wearing down of battery.

Don't use a compatible cable/charger and it'll change slowly. I don't think any PC I've connected to can do rapid charging, for example, and the cheap USB chargers I have definitely can't do it, only the one that came with the phone can do it.

purezen said:
So my 4a has been having fast battery drain since few months now. I remember it having very good battery life initially. However now it drains battery very fast.
This is also surprising since I keep brightness low due to me being sensitive to it.. and also keep the phone charged upto 80% capacity only as I read that it prolongs battery life.
One thing I could note is that the phone drains slower in the 80 - 100 % range if the phone gets fully charged occasionally.
Hence I have been suspecting the 'rapid' charging which is enabled by default on stock charger to be one cause.
Is there some way to enable slower charging like what happens in case of 'Adaptive charging' post 80% capacity? I hope that will lead to lesser wearing down of battery.
Click to expand...
Click to collapse
It's more likely an app that drain your battery in background than your battery dying already. Quick charge and adaptive charge are made to not harm the battery.
Are you rooted? If yes, install Franco kernel manager app from playstore.
In first page you'll see your battery life estimation (from system) and clicking on live monitor go-to the processes tab.
Just like top cmd on Linux you'll see which process is active and how much cpu it use
For me as an exemple i realized that when I'm using YouTube music. The AdAway app goes crazy and drain my battery. And its something that's not shown on settings/battety tab.

Fast charging stresses the battery more than slow charging. That said I almost always fast charge. I expect 1-2 years of battery life on my N10+'s though.
Charging past 80% or discharging below 30% stresses the battery; Li's like frequent midrange power cycling.
Don't start charging below 72F, 82F or higher is best. High temp cut off is about 102F.
Never attempt to charge a battery colder than 40F!!!
Erratic fast charging is a sign of battery failure.
A rapid decline in capacity is another sign of a battery failure.
Any rear cover bulging ie battery swelling is a failure, replace asap.
Once a battery is below 80% of it's original capacity it's degraded and has reached the end of its service life, replace it.
Degraded Li's are more likely to fail which can easily destroy the phone.
If the phone is used heavily or is 2-3 years old, probably time to replace the battery. Just do it.
On most phones the cost is low.

a1291762 said:
Don't use a compatible cable/charger and it'll change slowly. I don't think any PC I've connected to can do rapid charging, for example, and the cheap USB chargers I have definitely can't do it, only the one that came with the phone can do it.
Click to expand...
Click to collapse
Mine does rapid one only Thankfully connecting a usb to a socket board does non-rapid

Dead-neM said:
It's more likely an app that drain your battery in background than your battery dying already. Quick charge and adaptive charge are made to not harm the battery.
Are you rooted? If yes, install Franco kernel manager app from playstore.
In first page you'll see your battery life estimation (from system) and clicking on live monitor go-to the processes tab.
Just like top cmd on Linux you'll see which process is active and how much cpu it use
For me as an exemple i realized that when I'm using YouTube music. The AdAway app goes crazy and drain my battery. And its something that's not shown on settings/battety tab.
Click to expand...
Click to collapse
Thanks for the response
Frankly don't have that much usage of my phone. Will give sometime to observing with non rapid charging. Will give this a try if that still persists.

blackhawk said:
Fast charging stresses the battery more than slow charging. That said I almost always fast charge. I expect 1-2 years of battery life on my N10+'s though.
Charging past 80% or discharging below 30% stresses the battery; Li's like frequent midrange power cycling.
Don't start charging below 72F, 82F or higher is best. High temp cut off is about 102F.
Never attempt to charge a battery colder than 40F!!!
Erratic fast charging is a sign of battery failure.
A rapid decline in capacity is another sign of a battery failure.
Any rear cover bulging ie battery swelling is a failure, replace asap.
Once a battery is below 80% of it's original capacity it's degraded and has reached the end of its service life, replace it.
Degraded Li's are more likely to fail which can easily destroy the phone.
If the phone is used heavily or is 2-3 years old, probably time to replace the battery. Just do it.
On most phones the cost is low.
Click to expand...
Click to collapse
Thanks for the response. That was insightful

UPDATE:
Started slow-er charging since few days now.. and I really feel that the battery performance has considerably improved
Also update to Android 12 since few days as well so not sure if that has a role to play though I don't think so

purezen said:
UPDATE:
Started slow-er charging since few days now.. and I really feel that the battery performance has considerably improved
Also update to Android 12 since few days as well so not sure if that has a role to play though I don't think so
Click to expand...
Click to collapse
If it seems to work better... I don't see any difference on my N10+'s though. Run times are the same slow/fast charging.
Keep a close eye on it as erratic fast charging is a sign of battery failure... I have seen that

Question 85% VS 100% - and why?

I have always charged my phones to 100%, this 85% thing is very new to me.
I've never heard about it before until I saw it in my S22 ULTRA.
What are the benefits of charging only to 85%? Does it last as much as with 100%?
Does it really recommended to charge it up to 85%? Im not an heavy user, but also I'm not changing my phone once a year, I'm changing it one time in 3-4 years.
Also, I tried to never charge my phone at night, and trying to catch the battery not lower than 10-15 percent to charge.
So basically, it bothers me a little bit in the eye to see that the phone is only about 85%, because that way basically the battery will run out much faster(significantly, yesterday 10% went down in 45 minutes, which means I'll lose 45 minutes from battery usage for nothing).
So, my question is, is it really worth it? Is there a significant difference between the two options? I'd love your help, thank you all!

The 85% is to protect and prolong the battery life. I agree that you will loose 15% of battery time if not charging to 100%. I charge to 100% and when battery is 10 - 15 I charge to full. I guess on the long run it's better for the battery to only charge to 85%, but I change phones every year or 2, so I'm not to worried about prolonging the battery life

Set low limit at 30-40%
Top limit of 72-85% is better.
Li's love frequent midrange power cycling.
Start charge temperature is important to prevent Li plating. Battery should be at least at 72F, 82-90F is better. Cool if charging temperature goes above 99F. Never charge in direct sunlight.
Never attempt to charge at 40F or lower
Avoid having the screen on while changing.
When using, turn phone off if battery temperature reaches 100F or cool it.
Replacing the battery isn't a big deal unless you don't do it on a timely basis. When an Li has reached 80% of it's original capacity it's reached the end of it's useful service life and is degraded.
Degraded Li's are more likely to fail which can heavily damage the phone. Any swelling is a failure replace immediately.
High voltage , temperature and current drain stress the battery. Other than avoiding low temperature charging and going to either low/high extreme voltage ranges constantly I wouldn't worry about it too much.
I now replace my heavily used Note 10+ battery every year or so to avoid another failure, routine maintenance. Batteries are cheap and relatively easy to replace.

blackhawk said:
Set low limit at 30-40%
Top limit of 72-85% is better.
Li's love frequent midrange power cycling.
Start charge temperature is important to prevent Li plating. Battery should be at least at 72F, 82-90F is better. Cool if charging temperature goes above 99F. Never charge in direct sunlight.
Never attempt to charge at 40F or lower
Avoid having the screen on while changing.
When using, turn phone off if battery temperature reaches 100F or cool it.
Replacing the battery isn't a big deal unless you don't do it on a timely basis. When an Li has reached 80% of it's original capacity it's reached the end of it's useful service life and is degraded.
Degraded Li's are more likely to fail which can heavily damage the phone. Any swelling is a failure replace immediately.
High voltage , temperature and current drain stress the battery. Other than avoiding low temperature charging and going to either low/high extreme voltage ranges constantly I wouldn't worry about it too much.
I now replace my heavily used Note 10+ battery every year or so to avoid another failure, routine maintenance. Batteries are cheap and relatively easy to replace.
Click to expand...
Click to collapse
So, I understand that it recommended to charge up to 85%? :-D
I searched on google to buy a S22 ultra battery that will keep in home until I need it, but couldn't find one.

maor23 said:
I have always charged my phones to 100%, this 85% thing is very new to me.
I've never heard about it before until I saw it in my S22 ULTRA.
What are the benefits of charging only to 85%? Does it last as much as with 100%?
Does it really recommended to charge it up to 85%? Im not an heavy user, but also I'm not changing my phone once a year, I'm changing it one time in 3-4 years.
Also, I tried to never charge my phone at night, and trying to catch the battery not lower than 10-15 percent to charge.
So basically, it bothers me a little bit in the eye to see that the phone is only about 85%, because that way basically the battery will run out much faster(significantly, yesterday 10% went down in 45 minutes, which means I'll lose 45 minutes from battery usage for nothing).
So, my question is, is it really worth it? Is there a significant difference between the two options? I'd love your help, thank you all!
Click to expand...
Click to collapse
If you can last to bedtime on an 85% charge then fine use that setting if you intend to keep the device for 3 years or longer.
If (like me) you need 100% charge to get through the day, continue charging to 100% and dont worry.
I have been using mobile phones for 25 years and I charge overnight as I sleep. I have NEVER had a battery failure or problems.
Life is short, enjoy your new phone
P.S. If you are worried about stressing the battery by charging to 100%, I suggest you also disable Fast-Charging as that is WORSE for a battery cell than 100% vs 85% iMHO.

I used to charge my Note 10+ to 100%, every day plug it while in my car or plug it to my laptop now and then. After 2 years of use battery health was 89%.
On my Lenovo laptop I stop charging at 60% as suggested by Lenovo vantage. Bull****. Battery lasts a lot less after one year. Almost the half.
Enjoy your gadgets and mobiles. Anyway after 2 years most of us get a new one.

blackhawk said:
Set low limit at 30-40%
Top limit of 72-85% is better.
Li's love frequent midrange power cycling.
Start charge temperature is important to prevent Li plating. Battery should be at least at 72F, 82-90F is better. Cool if charging temperature goes above 99F. Never charge in direct sunlight.
Never attempt to charge at 40F or lower
Avoid having the screen on while changing.
When using, turn phone off if battery temperature reaches 100F or cool it.
Replacing the battery isn't a big deal unless you don't do it on a timely basis. When an Li has reached 80% of it's original capacity it's reached the end of it's useful service life and is degraded.
Degraded Li's are more likely to fail which can heavily damage the phone. Any swelling is a failure replace immediately.
High voltage , temperature and current drain stress the battery. Other than avoiding low temperature charging and going to either low/high extreme voltage ranges constantly I wouldn't worry about it too much.
I now replace my heavily used Note 10+ battery every year or so to avoid another failure, routine maintenance. Batteries are cheap and relatively easy to replace.
Click to expand...
Click to collapse
how does one set low limit?
i have a smart plug i use for my charger, only on long enough to charge phone from 20% to 85% (battery setting limit enabled).
i usually charge at 30% to 85%.

Slade8525 said:
how does one set low limit?
i have a smart plug i use for my charger, only on long enough to charge phone from 20% to 85% (battery setting limit enabled).
i usually charge at 30% to 85%.
Click to expand...
Click to collapse
I just do it by eye. It's not rocket science.
Accubattery lets you set an alarm if you want.

maor23 said:
So, I understand that it recommended to charge up to 85%? :-D
I searched on google to buy a S22 ultra battery that will keep in home until I need it, but couldn't find one.
Click to expand...
Click to collapse
Keeping a spare isn't a good plan as Li's start to degrade as soon as assembled. So after a year or more of sitting there it will have lost some of its initial capacity.
They should became easier in the future.

Any solution to modify the protect level?
"protect battery level 90%, 95% mod instead of 85%"
85% seem to be very short time of using

For anybody wanting to change the limit from 85% to lets say 90%, you can use the App called Galaxy Max Hz, you can find it on this forum : https://forum.xda-developers.com/t/...ods-qs-tiles-tasker-support-and-more.4404929/
One of the options is to change the battery charge limit, on the lock screen it will still say : "Charging stopped at 85%" even though the battery is at 90% as set in Galaxy Max Hz

coolpixs4 said:
Any solution to modify the protect level?
"protect battery level 90%, 95% mod instead of 85%"
85% seem to be very short time of using
Click to expand...
Click to collapse
85% is actually rather on the high side. Either correct the excessive battery drain or replace the battery. When an Li reaches 80% of its original capacity it's reached the end of its usable service life. It's degraded at that point. Degraded Li's are much more likely to fail. Any battery swelling is a failure.

My device does not have 'protect battery' toogle on quick settings
SS22+ OneUI4.1

coolpixs4 said:
Any solution to modify the protect level?
"protect battery level 90%, 95% mod instead of 85%"
85% seem to be very short time of using
Click to expand...
Click to collapse
bixby probably

Actually, the protection level should be 80% or less to maximize the battery’s useful life.

malikin said:
bixby probably
Click to expand...
Click to collapse
coolpixs4 said:
Any solution to modify the protect level?
"protect battery level 90%, 95% mod instead of 85%"
85% seem to be very short time of using
Click to expand...
Click to collapse
verszipo said:
For anybody wanting to change the limit from 85% to lets say 90%, you can use the App called Galaxy Max Hz, you can find it on this forum : https://forum.xda-developers.com/t/...ods-qs-tiles-tasker-support-and-more.4404929/
One of the options is to change the battery charge limit, on the lock screen it will still say : "Charging stopped at 85%" even though the battery is at 90% as set in Galaxy Max Hz
Click to expand...
Click to collapse

freco said:
I used to charge my Note 10+ to 100%, every day plug it while in my car or plug it to my laptop now and then. After 2 years of use battery health was 89%.
On my Lenovo laptop I stop charging at 60% as suggested by Lenovo vantage. Bull****. Battery lasts a lot less after one year. Almost the half.
Enjoy your gadgets and mobiles. Anyway after 2 years most of us get a new one.
Click to expand...
Click to collapse
I use the 60% protection on my Lenovo as they suggested and gess what, after 8 years my battery still works fine, and lasts for 2h/3h. I used my laptop every workday on heavy use, and it's the most cheap line, it cost me 300€ in 2015 (Lenovo G50-30 Celeron N2840). It's all day pluged, but when i need to use on battery it's fine!
So i realy think this battery protection works, and my S22 Ultra it's for last at least 5 years, and the 85% it's enough to run my workday.

burnin said:
I use the 60% protection on my Lenovo as they suggested and gess what, after 8 years my battery still works fine, and lasts for 2h/3h. I used my laptop every workday on heavy use, and it's the most cheap line, it cost me 300€ in 2015 (Lenovo G50-30 Celeron N2840). It's all day pluged, but when i need to use on battery it's fine!
So i realy think this battery protection works, and my S22 Ultra it's for last at least 5 years, and the 85% it's enough to run my workday.
Click to expand...
Click to collapse
Maybe. Depends on usage. On my N10+ which is heavily used with frequent charge cycling from 40-60% to 72 to 85% most times I get about 2 years out of a battery. Higher battery temperature shortens the lifespan as well. Fast charging is more stressful as is using the device right after a fast charge. High current drain while in use is also stressful; optimize the device to increase SOT and battery lifespan.
Frequent partial charge power cycling can extent the typical 200 full charge cycles to 800 or more. A partial charge is not a full charge cycle.
Start charge temperature matters.
It's an electrochemical reaction, heat is required for it to charge properly!
-//-
Never attempt to charge if near freezing
Fast charging will not engage if battery temperature is below about 55F to protect the battery.
Charging below 72F or above 103F can cause Li plating which will permanently degrade the cell.
Optimum start temperature is 82-90F, cutoff is 100-102F max. Cool if needed.
Regardless of service time replace the Li when it reaches 80% of its original capacity. At 80% it's reached the end of its service life and is considered degraded. Degraded Li's are more likely to fail
Any swelling is a failure and it can destroy the device. Battery replacement isn't hard or expensive. Just part of routine maintenance...

maor23 said:
I have always charged my phones to 100%, this 85% thing is very new to me.
I've never heard about it before until I saw it in my S22 ULTRA.
What are the benefits of charging only to 85%? Does it last as much as with 100%?
Does it really recommended to charge it up to 85%? Im not an heavy user, but also I'm not changing my phone once a year, I'm changing it one time in 3-4 years.
Also, I tried to never charge my phone at night, and trying to catch the battery not lower than 10-15 percent to charge.
So basically, it bothers me a little bit in the eye to see that the phone is only about 85%, because that way basically the battery will run out much faster(significantly, yesterday 10% went down in 45 minutes, which means I'll lose 45 minutes from battery usage for nothing).
So, my question is, is it really worth it? Is there a significant difference between the two options? I'd love your help, thank you all!
Click to expand...
Click to collapse
Here is a good article why it's recommended to not load the batt to 100%
How to maximize battery life: Charging habits and other tips
If you've ever wondered what the best way to charge your battery is, here are some scientifically proven tips for maximizing battery life.
www.androidauthority.com
Personally i just keep the load between 65% and around 20-30%. Only if i know that i will leave the house longer than 4 hours I do a 85% load or 100% if i want to film and take photos. But this rarely happens.