How to correctly charge lithium polymer battery - Nexus 4 Q&A, Help & Troubleshooting

I read so many thread that indicate Nexus 4 poor battery performance. Therefore, I start thinking if I have the correct concept of charging a lithium
polymer battery. I don't know if the article I found correctly indicate the fact. Here is my way to charge my nexus 4 or 7
1. I never let my battery drain to zero or shut itself down. I usually charge when it's 10% or over 5% (How's your view about it? too low?)
2. I rarely fully charge my phone to 100%. I usually get it done around above 95.
3. I "turn off" the device while I'm charging. In this case, I turn off Nexus 4 and 7 when I need to charge them.
4. I rarely charge my phone overnight...( any second opinion on this?)
Any views and suggestions are all welcome. I just try to find the best way on how to "correctly" charge our nexus 4 lithium polymer battery.
Here is an article I read as an example http://buychargeall.com/cellphonebatterychargertips/

This link may help you http://forum.xda-developers.com/showthread.php?t=518861.
Lipo batteries do not need priming as it does not have memory.
Even though it's about Li-ion, effectively they're the same thing.
The lithium-polymer (LIPO) is a more technologically advanced version of a lithium ion (Li-ion) battery. It's electrolyte is held in a solid polymer film which is directly bonded to the lithium electrode.
Charging a drained battery will shorten the battery life. So I would recommend that you charge more frequently, than charging after the battery is low.

Just charge it however you like and don't worry about it. You'll likely have a new phone before any noticeable damage is done to your battery

xRegrets said:
This link may help you http://forum.xda-developers.com/showthread.php?t=518861.
Lipo batteries do not need priming as it does not have memory.
Even though it's about Li-ion, effectively they're the same thing.
The lithium-polymer (LIPO) is a more technologically advanced version of a lithium ion (Li-ion) battery. It's electrolyte is held in a solid polymer film which is directly bonded to the lithium electrode.
Charging a drained battery will shorten the battery life. So I would recommend that you charge more frequently, than charging after the battery is low.
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Click to collapse
Thanks I see.

Michealtbh said:
Just charge it however you like and don't worry about it. You'll likely have a new phone before any noticeable damage is done to your battery
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That's true too....but still...lol. Worry people worry a lot

xRegrets said:
This link may help you http://forum.xda-developers.com/showthread.php?t=518861.
Lipo batteries do not need priming as it does not have memory.
Even though it's about Li-ion, effectively they're the same thing.
The lithium-polymer (LIPO) is a more technologically advanced version of a lithium ion (Li-ion) battery. It's electrolyte is held in a solid polymer film which is directly bonded to the lithium electrode.
Charging a drained battery will shorten the battery life. So I would recommend that you charge more frequently, than charging after the battery is low.
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Click to collapse
Sorry, I just have one more question after reading the guide...
So, it's ok to charge over night? Is it ok to always put the phone on charger?

I always charge it when below 5% juice is left. And I let it charge till it hits 100% mark. Plus I put it on charge when I got to sleep and wake up after 3 or 3.30 hours (yeah, thats how long it takes to full charge) then turn the switch off and go back to bed.
Is it ok?

I have let all my devices in the past 3 years charge continuously overnight and have never had a single problem

Odp: How to correctly charge lithium polymer battery
Michealtbh said:
I have let all my devices in the past 3 years charge continuously overnight and have never had a single problem
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Yea same here.
Sent from my Nexus 4 using xda app-developers app

Michealtbh said:
Just charge it however you like and don't worry about it. You'll likely have a new phone before any noticeable damage is done to your battery
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This. There is nothing to worry about, other than ignoring the many myths that you can read on this subject. The battery will turn itself off way before any chance of damaging it.
Sent from my Nexus 4

zxcv106106 said:
1. I never let my battery drain to zero or shut itself down. I usually charge when it's 10% or over 5% (How's your view about it? too low?)
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Because deep discharging is bad for all lithium based cells non of them allow the battery to discharge to zero, when the cells hit zero in your phone that is the empty limited deemed as safe by the manufacturer and not that the cells are depleted, conversely you cannot over charge it either, Lithium based cells have circuitry embedded in them to prevent damage. Therefore I charge and discharge my battery as i see fit to suit my needs be it over night or a quick blast.
I recently went on a trip to Belgium and it was a 14 hour ferry crossing of which most of the time the phone has no signal. Presumably my N4 was searching for a cell most of the time yet at 17 hours after unplugging it there was still 86% battery left.
People need to realise it is using the screen more than any other single activity that uses the battery, the Nexus 4 is no worse than any other similar phone with a similar battery.
The first phone i had which had a lithium battery was a Nortel 2000, this was in 1996 and i didn't give a toss how i charged that up and i didn't damage that battery, i am sure the technology had advanced shed loads since then.

How do you call people who let phones control their lives?
OP.

0rigin said:
How do you call people who let phones control their lives?
OP.
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Nothing here about control live by the phone. I post this only to find out the correct way to charge lithium battery.
Thanks for all the information.

Related

Cradle use and battery health

At the office I leave my phone in a cradle. When I get calls I remove the phone to answer and then return it to the cradle when done. My battery goes from 100% down to somewhere in the 90's then charges back to 100% in the cradle. Does this repeated process harm the battery in any way? I've read that these batteries don't suffer from the memory effect, but I'm still not sure if this counts as a charging cycle.
Sent from my Desire HD using XDA App
You should always let the battery run down completely some times maybe once a week.
Really? I've read on this forum that there is no need to do that with the new Lithium Ion batteries. I've even read that this could have a negative effect and you should try not to let the battery drain completly.
I don't understand why there isn't a proper battery care section in the manual. Its as if its some kind of voodoo science.
Perhaps not Once a week. But Once a "while"
The reason is that, Phone software uses approximation to calculate the charge left in the Battery. So over time, battery ages and software may not be calibrated to match with the battery's storage capacity. So draining the battery entirely and charging them fully gives the phone's software to assess the battery's health and recalibrate.
It's a lithium battery mate. The only way you can really damage it is by a complete discharge. So long as you don't switch the phone back on once it switches itself off due to low battery you needn't worry about anything else.
Also in theory the lithium batteries have a lifespan of say about a 1000 charges for example and everytime you charge it has one charging less left. This ofcourse isn't exactly how it is in practice but charging the battery alot wears it down. It isn't good either to keep it in the charger for a longer time after it's reached a 100%.
Hi,
this is only partly correct:
Suppose the battery can make 1000 (which I don't believe) charge cycles,
it means that you can charge 1000 times from empty to full.
If you just charge 1000 times from 50% empty to full it counts for 500 cycles!
So,
don't worry, let it stay in the cradle if you like
There are 500 opinions about that but believe, as I wrote is correct.
Theo
Yes, what I said wasn't exact science and I used 1000 cycles as an example, but from what I've read it is better to let the battery drain to less than 50% and then charge it full rather than charge 5% at a time. My previous post was meant to illustrate this.
Sent from my Leedroid powered pocketsized supercomputer using XDA App
geenome said:
You should always let the battery run down completely some times maybe once a week.
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Click to collapse
That's a load of crap, no offense... Lithium batteries have no memory effect and have absolutely no need to be completely discharged, that's a ancient thing from the time of nickel-metal hybrid batteries. The only actual reason for full charge cycles is to calibrate the device for that exact battery.
Keeping a lithium-ion battery in a charger most of the time will wear the battery down faster than getting it drain more and then charging it. Keeping the battery almost fully loaded/in a constant loading state wears the battery capacity by approximately 20% a year (can't recall the source/study just now)(EDIT: and my personal experience is that the battery capacity will wear that much anyway, no matter how you use it). The life-cycle of phones these days are roughly two years nowadays so IMO you can keep it in a cradle with no worries, if you wish. And lets face it, a new battery after a year of usage won't be that big an investment after all.
To add to the above post, running down a lithium battery completely does more damage than benefit. This is almost impossible though with normal use as the phone shuts down long before the battery is completely empty

How to Prolong Lithium-based Batteries

I just found this very interesting article, maybe you'll like it too:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Short summary:
1. "A partial discharge reduces stress and prolongs battery life. Elevated temperature and high currents also affect cycle life."
2. "Higher charge voltages boost capacity but lower cycle life and compromise safety."
its also suggested that you let your phone go through one complete discharge from 100 - 0% at least once a month.
- also on the heat front mentioned in the OP, i take it that means its best to remove your cover when charging your phone to stop a build up of heat?
You mean taking of the case, like Otterbox?
No, I wouldn't do so because my battery never gets warmer than 26-29 degrees.
Bad would be everything above 30°.
scaryshark said:
its also suggested that you let your phone go through one complete discharge from 100 - 0% at least once a month.
- also on the heat front mentioned in the OP, i take it that means its best to remove your cover when charging your phone to stop a build up of heat?
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Our electronic profs at uni (who actually know what they are talking about) told us to keep the charge between 80% and 30%. Discharging to 0% only harms the battery.
So i'd really like to know where it's suggested that you should discharge to 0% once a month.
btw: This is a quote from the link from the op:
"The smaller the depth of discharge, the longer the battery will last. If at all possible, avoid frequent full discharges and charge more often between uses."
So i'd say that discharging to 0% once a month is nonsense and only harms your battery
I read that a while ago on the iPhone support website and did that for my old 3g, I just kept the practice running when I got my DHD. I guess either Apple is wrong or its only usefull for non-removable batterirs.
Sent from my Desire HD using XDA
That's probably why their batteries died so fast.
gotta voice in here. i've also heard that its optimal to keep your battery in the 80%-30% range. and that its only damaging to fully drain your battery.
but on the flip side, its kinda needed to do a wipe battery stats once in a while, so i can get a better reading of my battery.... was a time when i hadn't done it for ages, and i was at 1% battery while watching a movie for 30 minutes..
so, I recommend at least, to DONT drain your battery.. but if you are getting really off readings on your battery. do the wipe battery stats thing
My DHD battery seems to be getting worse and not holding its charge. as it's almost been 18 months I decided to buy a new OEM battery and I was jus wondering how should I run the 1st few cycles? And how long will it take to reach its optimum capacity? Also will I need to wipe battery stats and calibrate it?
Sent from my HTC Desire HD A9191 using xda premium
AllEyezOnMe said:
My DHD battery seems to be getting worse and not holding its charge. as it's almost been 18 months I decided to buy a new OEM battery and I was jus wondering how should I run the 1st few cycles? And how long will it take to reach its optimum capacity? Also will I need to wipe battery stats and calibrate it?
Sent from my HTC Desire HD A9191 using xda premium
Click to expand...
Click to collapse
No Calibration is a hoax, and battery stats are wiped whenever DHD is unplugged with nearly full charge (link to follow from one of the Android devs, don't have it to hand whilst mobile)
Sent from my Desire HD using Tapatalk
I used to worry about battery, then i purchased two of the cheap Ebay ones for like $3 they each hold about a day worth of juice. let the haters hate on the cheap batteries but it's $3! If they are of lower capacity (which must be miniscule because i can't tell) or they die early who cares. Buy a few of them and be done with it.
Sent from my Desire HD
brad808 said:
Buy a few of them and be done with it.
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Why buy many batteries, when you can have 1 quality item?
Cheap batteries can also be a security risk (exploding cell phones e.g.)
scaryshark said:
its also suggested that you let your phone go through one complete discharge from 100 - 0% at least once a month.
- also on the heat front mentioned in the OP, i take it that means its best to remove your cover when charging your phone to stop a build up of heat?
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how should we go about that? play heaps of games? increase brightness? or do you mean drain it slowly like over a day?
rootingdestroyer said:
how should we go about that? play heaps of games? increase brightness? or do you mean drain it slowly like over a day?
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Click to collapse
You shouldn't, draining batteries fully is no longer recommended practice
Sent from my Desire HD using Tapatalk
how to charge a new battery?
I still haven't received an answer to my past post. I've just got a new OEM battery and i wanted to know how should i run the first few cycles? is there a certain amount of time i should charge before i unplug it or do i just treat it as i would with a normal used battery?
AllEyezOnMe said:
I still haven't received an answer to my past post. I've just got a new OEM battery and i wanted to know how should i run the first few cycles? is there a certain amount of time i should charge before i unplug it or do i just treat it as i would with a normal used battery?
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Click to collapse
Suggested initial full charging/discharging cycles are ONLY made to train your phone and NOT your battery and in most cases aren't even intended for current android phones.
Those mythical suggestions are often based on facts for non-lithium rechargable batteries.
Nowadays rechargable lithium batteries are often shipped at least half full. So what you can and should do is just use the battery and try keeping it between 30% and 80%. That's all you have to do.
Dlog said:
Suggested initial full charging/discharging cycles are ONLY made to train your phone and NOT your battery and in most cases aren't even intended for current android phones.
Those mythical suggestions are often based on facts for non-lithium rechargable batteries.
Nowadays rechargable lithium batteries are often shipped at least half full. So what you can and should do is just use the battery and try keeping it between 30% and 80%. That's all you have to do.
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Click to collapse
So are you saying i shouldn't even charge it to 100% and what about the recommended monthly full charge to complete discharge to calibrate the battery?
Well you can charge it to 100% if you want. That will reset the battery log of your phone, so it can't hurt that much.
But charging it for an extensive amount of time will bring you no good. The charging circuit in your phone and in general the charging circuit used to charge lithium-ion batteries will stop charging once the battery is full. That way it prevents the battery from overcharging. But it also means that charging your phone for any more time than it needs to won't make it run any longer.
The monthly complete discharge is not to calibrate your battery as i've allready stated. It is used by the phone to better estimate how much power your battery can currently hold. So in a sense it's used to calibrate but not the battery itself but the battery statistics in your phone.
The phone knows how much energy the wall-charger provides and can thus determin huch much power is stored in the battery once it hits 100% (or better: reaches it's maximum voltage). If you have a charge from 1% to 100% then the phone can obviously determin the battery's capacity more accurately than if you charge it from 50% to 100%.
/edit:
And yes. If you really want to prolong your batteries life then keep it's charge between 80% and 30%.
But just see to it that the charge is above 30% and you're good.
Dlog said:
Well you can charge it to 100% if you want. That will reset the battery log of your phone, so it can't hurt that much.
But charging it for an extensive amount of time will bring you no good. The charging circuit in your phone and in general the charging circuit used to charge lithium-ion batteries will stop charging once the battery is full. That way it prevents the battery from overcharging. But it also means that charging your phone for any more time than it needs to won't make it run any longer.
The monthly complete discharge is not to calibrate your battery as i've allready stated. It is used by the phone to better estimate how much power your battery can currently hold. So in a sense it's used to calibrate but not the battery itself but the battery statistics in your phone.
The phone knows how much energy the wall-charger provides and can thus determin huch much power is stored in the battery once it hits 100% (or better: reaches it's maximum voltage). If you have a charge from 1% to 100% then the phone can obviously determin the battery's capacity more accurately than if you charge it from 50% to 100%.
/edit:
And yes. If you really want to prolong your batteries life then keep it's charge between 80% and 30%.
But just see to it that the charge is above 30% and you're good.
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Ok thanks for all the information your help is much appreciated
Dlog said:
The monthly complete discharge is not to calibrate your battery as i've allready stated. It is used by the phone to better estimate how much power your battery can currently hold. So in a sense it's used to calibrate but not the battery itself but the battery statistics in your phone.
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How so? Battery stats is wiped when you unplug the nearly charged phone, so where is this historical data found?
Sent from my Desire HD using Tapatalk
ghostofcain said:
How so? Battery stats is wiped when you unplug the nearly charged phone, so where is this historical data found?
Sent from my Desire HD using Tapatalk
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beats me^^
My point was that the calibration is done for the accuracy of the percentage displayed and not to make your battery hold more energy, regardless of what phone/device you use.
And i'm using Battery Monitor Widget so i tend to mean that when i talk about the "historical data". Because BMW really does tell you to run larger charge cycles to increase accuracy. It however doesn't tell you that constantly running your battery down to 0% will only shorten it's lifetime.

Charging Nexus 7 before using it for 1st time?

Should I charge it for like 10 hours, then play with it? or you think its ok to just start playing out of the box.
I've heard stories..where you should, and where it's not necessary.
Thanks
lin013190 said:
Should I charge it for like 10 hours, then play with it? or you think its ok to just start playing out of the box.
I've heard stories..where you should, and where it's not necessary.
Thanks
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Mine came nearly full. I just plugged it into charger out of the box and played with it while it was charging
Sent from my Nexus 7 using Tapatalk 2
With any new phone I always play with it till it dies and then plug it in and charge for 8 hours and then power it on and good to go
Sent from my EVO using xda app-developers app
Hmm, I see.:cyclops:
With every electronic gadget using Lithium-ion batteries nowadays, it doesn't really matter how/when you charge it.
Some would argue to make sure to allow a full discharge from a full charge from a battery calibration point of view, so the battery meter is more accurate. It wouldn't affect the health of the battery itself either way.
Things like memory effect doesn't apply to lithium-ion. How often you charge it and how much you charge it (full or partial charge etc.) doesn't affect it much either. The only 2 things that can potential kill a lithium-ion is high temperature and letting it discharge far too low to the point that it cannot be charged up again. Note that all electronic devices will power off way before it even reaches this threshold.
What makaijin says is correct
I had mine a bit of a charge yesterday but it was no where near full.
Used it till it was flat this morning. It's currently on charge and I'm going to leave it till it's full only because I need to stop messing with it and do other things
Sent from my HTC One X using Tapatalk 2
I charged mine for 4 hours before use.
Although it is probably not necessary nowadays, I like to fully discharge the device, then charge it overnight (so it gets back up to 100% and tops off), then cycle it that way 2/3 times, so properly "condition" the battery, as I don't 100% trust the conditioning done before shipping.
Just as a side note, most of the battery conditioning lore is coming from way back in the bad ol' nicad days (probably 1990's), when you HAD to 100% discharge/recharge the battery, and make sure it didn't overcharge or undercharge, else it would not be "conditioned" properly, and it had a permanently reduced max charge. Nowadays, expecially with Lion, it is not necessary, and may even be harmful to fully discharge/recharge cycle EVERY time you use it. The first few times it's probably best to do it to fully condition the battery, but beyond that, it really does nothing.
hanthesolo said:
Although it is probably not necessary nowadays, I like to fully discharge the device, then charge it overnight (so it gets back up to 100% and tops off), then cycle it that way 2/3 times, so properly "condition" the battery, as I don't 100% trust the conditioning done before shipping.
Just as a side note, most of the battery conditioning lore is coming from way back in the bad ol' nicad days (probably 1990's), when you HAD to 100% discharge/recharge the battery, and make sure it didn't overcharge or undercharge, else it would not be "conditioned" properly, and it had a permanently reduced max charge. Nowadays, expecially with Lion, it is not necessary, and may even be harmful to fully discharge/recharge cycle EVERY time you use it. The first few times it's probably best to do it to fully condition the battery, but beyond that, it really does nothing.
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"Conditioning" does not occur with li-on batteries, period. Charging/discharging does absolutely nothing for the life of your battery.
Ifixit shows that the battery inside the Nexus 7 is Lithium Polymer. Does that make a difference in terms of conditioning compared to Li-Ion batteries?
MaxCarnage said:
"Conditioning" does not occur with li-on batteries, period. Charging/discharging does absolutely nothing for the life of your battery.
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Click to collapse
Oh, thanks. I thought that was my being paranoid .
Lithium Polymer batteries are actually worse than Lithium-Ion. Don't take my word for it, but at least with older RC Lipo batteries, fully discharging damages them even more the lithium-ion. I am sure the tablet cuts off way before the danger point, but still something to keep in mind.
Here's the deal- and this has been verified on multiple devices with larger batteries- Your tablet will need to self-calibrate the battery meter/charging to the battery. You can expect things like sketchy battery life and running down very low or completely overnight for the first couple days. Once everything "syncs up", you can take advantage of the full potential of the battery. This happened with my Razr Maxx and it happened on my Nexus 7's first overnight. And, talking to people who have had their Nexus 7's a few days, it's common and expected.
As said, it is NOT the battery conditioning, it is the device calibrating. The battery is pretty big and there's a period of time while the device learns.
I decided to drain the battery all the way and then charge it all the way up. It's charging right now actually, any idea how long it should take to get up to 100%?
Sent from my SAMSUNG-SGH-I777 using xda app-developers app
phoneman09 said:
I decided to drain the battery all the way and then charge it all the way up. It's charging right now actually, any idea how long it should take to get up to 100%?
Sent from my SAMSUNG-SGH-I777 using xda app-developers app
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Click to collapse
Not sure but you can always tap the power button to pull up the battery charge animation. It should let you know when it is fully charged.
Sent from my Nexus 7 using Tapatalk 2
Over discharging a Lithium Ion battery can ruin it in a single cycle. Of course any consumer device should shut off before that happens but deep discharges to the shut off point still permanently reduce battery capacity significantly more than shallower discharge cycles.
In simple terms, you'll get significantly more hours of battery use during its lifetime if you only discharge to 50% than 10% or less.
Lithium Ion batteries never need to be "fully discharged" to the device shut off point and as stated above, it isn't "good" for them.
That said, a discharge from fully charged to at or near shutoff let's the device software measure the battery capacity more accurately so you'll get a more accurate battery reading.
Lithium Ion batteries should not be charged at elevated temperatures. If you just watched a two hour movie, let it cool down before charging. A tablet is a nasty place for a battery with the CPU heating it up. Most manufacturers advise not charging at > 85 deg F and 70 deg F is better. A really good charger will measure battery temperature and reduce the max charging rate at elevated temperatures.
Lithium Ion batteries should be stored at 50-70% capacity and not fully charged. That's ~3.7 V per cell. Those of us who use the device a lot on external power would see a lot longer battery life if there was a mode which allowed keeping the battery below 100% while on external power. It seems every manufacturer thinks consumers are too dumb to understand the value of providing it and switching to full charge mode before we run off on battery power.
TP_NC_USER said:
Over discharging a Lithium Ion battery can ruin it in a single cycle. Of course any consumer device should shut off before that happens but deep discharges to the shut off point still permanently reduce battery capacity significantly more than shallower discharge cycles.
In simple terms, you'll get significantly more hours of battery use during its lifetime if you only discharge to 50% than 10% or less.
Lithium Ion batteries never need to be "fully discharged" to the device shut off point and as stated above, it isn't "good" for them.
That said, a discharge from fully charged to at or near shutoff let's the device software measure the battery capacity more accurately so you'll get a more accurate battery reading.
Lithium Ion batteries should not be charged at elevated temperatures. If you just watched a two hour movie, let it cool down before charging. A tablet is a nasty place for a battery with the CPU heating it up. Most manufacturers advise not charging at > 85 deg F and 70 deg F is better. A really good charger will measure battery temperature and reduce the max charging rate at elevated temperatures.
Lithium Ion batteries should be stored at 50-70% capacity and not fully charged. That's ~3.7 V per cell. Those of us who use the device a lot on external power would see a lot longer battery life if there was a mode which allowed keeping the battery below 100% while on external power. It seems every manufacturer thinks consumers are too dumb to understand the value of providing it and switching to full charge mode before we run off on battery power.
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Click to collapse
I would rather always have my battery near max charge when I take it off the charger than have a battery last 7 years instead of 3 or 4 in a device I will realistically only use extensively for 2. Even more so with a phone where they battery can replaced for $20. I'll take a full charge every time over the battery lasting for years longer than I need it to.
I have a first gen iPod Touch I bought when they were released (2007 I think?). I have left it on a charger for MONTHS. Still holds a decent charge.
Is there benefit to using a battery calibration app like this if you're rooted?
https://play.google.com/store/apps/details?id=com.nema.batterycalibration&hl=en
You don't have to but I like to. Mine was like 40% charged when I unboxed
Sent from my Nexus 7 using xda app-developers app
sRDennyCrane said:
Here's the deal- and this has been verified on multiple devices with larger batteries- Your tablet will need to self-calibrate the battery meter/charging to the battery. You can expect things like sketchy battery life and running down very low or completely overnight for the first couple days. Once everything "syncs up", you can take advantage of the full potential of the battery. This happened with my Razr Maxx and it happened on my Nexus 7's first overnight. And, talking to people who have had their Nexus 7's a few days, it's common and expected.
As said, it is NOT the battery conditioning, it is the device calibrating. The battery is pretty big and there's a period of time while the device learns.
Click to expand...
Click to collapse
Calibration occurs every time the battery is charged to 100%. It isn't a "first few days" type of thing, it is every single time the battery meter reaches 100%.
I had no choice but to completely charge my N7 (purchased from Office Depot 7/14). When I went to turn it on the first time, I was greeted with small text in the upper left side of the screen that said "show low battery logo" on a completely black screen. No logo...no nothing. Completely blank. Plugged it in, the battery charging logo popped up, fully charged it and it's been working great since.
However, I found it a bit odd as I thought most of these types of devices ship with about a 40% battery charge.
Thoughts?

[Q] first charge?

do i drain the battery before first charge? is it really necessary to do overnight first charge or 3-4 hour full charge will do? need to take extra care since it is non removable.
I know that's really un-educated but I'm not sure about those things as well ... is it good to drain it first and then recharge it, or recharge it at the beginning .. and is it bad when you take it off the charger in the middle of the process?
I know it depends on battery type. And actually what would make sense is just following the manual. Why shouldn't the manufacturer know?
Anyway, anyone with some knowledge on that, please help!
Nearly all cell phones use Lithium-based batteries, which should not be drained before charging. The "drain before charge" thing only applies to nickel cadmium batteries.
You should charge your phone battery as often as possible. It's better for the battery to go from 100% to 80% five times than to go from 100% to 0% once.
I have read several articles that state it is BAD to completely drain a lithium polymer battery so I plan to just keep it charged as usual.
Bronk93 said:
I have read several articles that state it is BAD to completely drain a lithium polymer battery so I plan to just keep it charged as usual.
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Click to collapse
I've heard the same info too where it'll damage the battery by draining it completely. Although, I heard that power management on devices sometimes need to be calibrated by taking the lithium battery to near 0%...it's that way on my macbook pro...not sure about phones.

N7100 over charging

I generally try not to charge my note 2 overnight. I want this battery to be healthy as long as possible, so I don't want it to sit at high voltages for too long.
Normally my note 2 is around 80 percent when I go to sleep so I don't plug it in at night, I just plug it in in the morning for an hour before going to work. It reaches 100 and then I remove it.
The times when my battery is much lower that I won't be able to charge it in the morning in the hour, I do charge it overnight.
What I've noticed is that the battery drains much slower on the days it's been on the charger overnight.
So I'm thinking that the charger will continue to raise the voltage even after it reaches 100%. Maybe someone has some other thoughts, but I just wanted to share what I've noticed so people are careful with their battery.
Hi,
Charge it yhe way you want. Don't stress on it.
But for a few tips:
Don't let the lithium-ion battery go down to critical battery levels before charge.
Don't put the battery on the refrigerator.
Don't over charge it even if it's a new battery .
Simone said:
Hi,
Charge it yhe way you want. Don't stress on it.
But for a few tips:
Don't let the lithium-ion battery go down to critical battery levels before charge.
Don't put the battery on the refrigerator.
Don't over charge it even if it's a new battery .
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So basically i can't charge the battery overnight? I don't understand the meaning of don't overcharge it.
Raging_Ken said:
So basically i can't charge the battery overnight? I don't understand the meaning of don't overcharge it.
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You can but can potentially damage the battery. It's up to you.
I'm going to disagree with you guys. The charger and the battery has overcharging protection built in. So don't speculate with overcharging overnight. In fact when the phone has stayed longer on the charger I got better battery life. Cheers
Sent from my GT-N7100
kirilorius said:
I'm going to disagree with you guys. The charger and the battery has overcharging protection built in. So don't speculate with overcharging overnight. In fact when the phone has stayed longer on the charger I got better battery life. Cheers
Sent from my GT-N7100
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Yes, I know. So why would you charge your phone overnight? So it would stay 100% when you wake up?
I charge my phone overnight everyday.
The battery magnet would trigger the charger into trickle mode. This prevents overcharging.
Li-ion battery prefers to be charged then discharged. Contrary to hearsays, discharging it to critical levels too often would actually degrade battery life.
My Nexus one of 2 years still maintained a 84% charge because of this.
Simone said:
Yes, I know. So why would you charge your phone overnight? So it would stay 100% when you wake up?
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Cause i'm using it all day till 1-2 o'clock at night and thats the only time i can charge my phone. And with the heavy usage im putting it the battery cant hold more then 15-16 hours
Sent from my GT-N7100
The battery have both overcharging and undercharging protection.
So there is no problem charging your phone overnight, the battery will stop charging when it is full. It will then be allowed to discharge a bit and the charging cycle will resume. The fluctuations caused by this charge/discharge cycle are usually hidden by the firmware so that you only see 100% - charged.
As for undercharging, it can indeed kill batteries, but it won't happen unless you drain the battery completely *and* let it self-discharge for a few weeks.
You don't have to adopt a specific charging pattern to keep your battery in good shape, just do what's most convenient for you.
Some tips however :
- Avoid high temperatures, batteries don't like it. The fridge is actually a good place to store your batteries provided that you took the necessary steps to prevent condensation.
- Store unused Li-Ion batteries at about 50% charge. Fully charged batteries have a lower shelf life, the 50% are there to prevent self-discharge from causing undercharging.
- A full discharge-charge cycle won't make your battery healthier but it is useful to recalibrate the power gauge.
kirilorius said:
Cause i'm using it all day till 1-2 o'clock at night and thats the only time i can charge my phone. And with the heavy usage im putting it the battery cant hold more then 15-16 hours
Sent from my GT-N7100
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I see. Well, in your case it may be better.
Because during the night it gets more time to detect the proper voltage and stop.
And the battery is removable for a reason. It'll have over 80% original capacity even after 2000 discharges and it's only $20 at most to replace. No need to stress it over. Use it all you want and replace it the time comes. Leave the stressing over to the non-replaceable guys.
Sent from my GT-N7100 using xda premium
BBlax said:
Because during the night it gets more time to detect the proper voltage and stop.
And the battery is removable for a reason. It'll have over 80% original capacity even after 2000 discharges and it's only $20 at most to replace. No need to stress it over. Use it all you want and replace it the time comes. Leave the stressing over to the non-replaceable guys.
Sent from my GT-N7100 using xda premium
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Exactly.
If said battery full unplug charger, i let the phone still connect to charger moreless 1 hour...
Sent from my GT-N7100 using xda premium
Rudyansah said:
If said battery full unplug charger, i let the phone still connect to charger moreless 1 hour...
Sent from my GT-N7100 using xda premium
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Why anyone stresses over a $20 user replaceable part is beyond me. I think you're too used to iPhones
kebabs said:
Why anyone stresses over a $20 user replaceable part is beyond me. I think you're too used to iPhones
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I love eating kebabs. LOL :cyclops:
BBlax said:
And the battery is removable for a reason. It'll have over 80% original capacity even after 2000 discharges
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You telling me if i charge once a day, the battery will still have over 80% charge after 6 years of years? I find that hard to believe as all my previous batteries have to be replaced after 2 to 3 years of use.
That's the quote from manufacturers under ideal conditions. The only devices that I haven't threw out for that long are laptops and the battery in them are still working flawlessly and holds a reasonable charge.
Even tiny LSD batteries can have up to 1000 charges so higher capacity ones will last longer and be more durable due to the increased amount of cells. Just like how higher capacity nand will last longer than lower ones.
Sent from my GT-N7100 using xda premium
It's a 30 battery. Treat it like **** and just replace it when it dies! By the time it's dead you'll be wanting a new phone anyway.

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