Self charging battery? - Galaxy S 4 Q&A, Help & Troubleshooting

Hey, can someone explain me this?
I charged my phone to atleast 24% begore i went to bed cause last time i tested battery when i sleep, the battery dropped 20% in 10 hours, but now i charged it to 24% and when i woke up today it had slowly increased to 32%... what the heck? Can someone explain this to me?
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andsa said:
Hey, can someone explain me this?
I charged my phone to atleast 24% begore i went to bed cause last time i tested battery when i sleep, the battery dropped 20% in 10 hours, but now i charged it to 24% and when i woke up today it had slowly increased to 32%... what the heck? Can someone explain this to me?
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wrong sub section but in answer, my s2 done that all the time almost after flashing a rom.
could start off at 100%, flash a rom and itd be at say 25% then start building up again toward its correct %. no biggy, its kinda normal :good:

Wrong section to post this but this problem also happens on my s2, it is something wrong with the fuel gauge. Just do regular charging and discharging and it should return to normal.
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Your battery has a problem. Cause of overcharging.
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If you've flashed a new rom, often the history of battery values and voltages get messed up. So its not really sure what percentage of battery is left when the battery is at X volts for example. Usually a complete discharge followed by a full charge should recalibrate the battery monitoring.

ilabs said:
If you've flashed a new rom, often the history of battery values and voltages get messed up. So its not really sure what percentage of battery is left when the battery is at X volts for example. Usually a complete discharge followed by a full charge should recalibrate the battery monitoring.
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The thing is i got the phone on wednesday last week and it's on stock rom.

andsa said:
The thing is i got the phone on wednesday last week and it's on stock rom.
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Try a few complete charge cycles. Hopefully it should fix itself coz its not really uncommon.

you should download battery calibration app
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Related

Max charge 97%

Well my Max charge is 97 what could that be I am running cm7 any help is my battery damaged?
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This belongs in question and answers section.
You might be able to fix this by reconditioning your battery,otherwise your battery is just getting old
It could not be getting old I just got it last month
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Thats how it is.
cm7 and miui have same problems, and its to save you from over charging, and thats some phones start heating up too much.
Don't worry about it, its for your own phones life.
Ok that's good to know and my phone charge extremely slow and sometime not at all but then I reboot and my battery life goes way up wat is that about
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Thats because your phone is mis-reading your battery's charges.
a Re-condition would help phone re-read it more accurately, but idk how you'd do that since to re condition you have to charge till' 100% lol.
Will they change rom to make it 100 cuz I don't want to go back to 2.2 rom cm7 is to good
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Jasonhunterx said:
Will they change rom to make it 100 cuz I don't want to go back to 2.2 rom cm7 is to good
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the CM7 your using is not OFFICIAL, so the problems your facing is up to the developer to solve, not the CM team because as far as i know, they haven't even supported CM7 for us fully yet.
it's just how cm7 is reading the battery. on one revision i would get a max of 95% then 97% on another. just recondition the battery after its been plugged in for while after hitting the 97%. worst case is you have to recondition your batter again after you flash another rom or it gets fixed.
Do you know what cm7 version they've used as a base for the vibrant version? The Nexus S does this by default, to protect the battery as others have mentioned.
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i am having the same problem and im running bionix 1.3.1
DHarr20 said:
i am having the same problem and im running bionix 1.3.1
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YOU need to re-condition, YOU can fix it.
the people on MIUI or CM7 can't.
As stated its a known thing.
I used my Samsung Focus to charge a battery to 100 percent put it in my phone and it discharged to 95% then back up 97%. So the phone isnt charging the phone up all the way as it is. This is also good for the life of the battery and the battery will last longer. Also it gives and accurate reading. Sometimes with phones if it says 100 percent it is discharging thus you actually only have <95%.
I fixed the problem I just switched to best rom(trigger) then reconditioned and it charges perfect thanks for the help
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Jasonhunterx said:
Well my Max charge is 97 what could that be I am running cm7 any help is my battery damaged?
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This is by design and should occur on all Roms. Below is a link to a good Phandroid article tiled "Your Smartphone's Battery Gauge is Lying to You and its not Such a Bad Thing". It really does an excellent job with a fair amount of data explaining why your battery will only charge to 95 - 97%.
It boils down to three options:
The phone manufacturers essentially have three choices:
1. Use older charging styles which actually maintain a full battery, thereby decreasing its eventual life
2. Use new charging methods and have an accurate battery gauge
3. Use new charging methods and have the inaccurate battery gauge
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Thanks
Smh nvm not fixed my battery said 88% then I plugged in charger then it dropped to 85% wats up wit dat
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Jasonhunterx said:
Smh nvm not fixed my battery said 88% then I plugged in charger then it dropped to 85% wats up wit dat
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RECONDITION.
I told you before everytime you flash a different rom, the battery is going to be different, so reconditioning is going to help you make it more accurate reading. brah.
I did I fully charge then wiped then drained recharge then wipe
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Jasonhunterx said:
I did I fully charge then wiped then drained recharge then wipe
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You may need to do it a few times.
But since you are on a 2.2.1 rom... no need to worry, when it tells you its at 97% it's actually at 100, soon when you don't notice going from 1% to 2% will take more than regular time, it'll make up for the 3% somewhere along the lines
Ok ill let u know the results of this second try and do I have to recharge when phone off
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My Battery Percentage Increases...

First of all, I know what most people will say: wipe battery stats and condition the battery, but I'm too lazy.
So recently I've been noticing that sometimes my battery charge percentage goes up rather than down. For example, tonight I put my phone in my pocket at 18% battery left. I watched some tv and checked it again ~1.5 hours later to find that it was now at 32%. I've seen this happen on occasion before, but never such a significant jump.
Anybody have any clue as to why it would do this? Other than the fact that my battery stats are needing to be wiped. idk just seems weird to me
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thomasskull666 said:
First of all, I know what most people will say: wipe battery stats and condition the battery, but I'm too lazy.
So recently I've been noticing that sometimes my battery charge percentage goes up rather than down. For example, tonight I put my phone in my pocket at 18% battery left. I watched some tv and checked it again ~1.5 hours later to find that it was now at 32%. I've seen this happen on occasion before, but never such a significant jump.
Anybody have any clue as to why it would do this? Other than the fact that my battery stats are needing to be wiped. idk just seems weird to me
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Sometimes that happens after a random reboot, where when it comes back up, it has "dropped battery." Then it realizes it isn't actually that low, so the battery meter will climb till it actually equals the battery. Then it'll start dropping again.
/sig
butler360 said:
You rooted your wife?
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That was happening to me on Clean GB, I reboot my phone every 4 days or so and my percentage would drop significantly after booting back up, then start increasing. I've never wiped my battery stats. I'm using another stock-like ROM so I'll see if it happens again.
I am a counselor at Looneyrat's group home
worldwidepmp said:
That was happening to me on Clean GB, I reboot my phone every 4 days or so and my percentage would drop significantly after booting back up, then start increasing. I've never wiped my battery stats. I'm using another stock-like ROM so I'll see if it happens again.
I am a counselor at Looneyrat's group home
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When you reboot do it while plugged into a charger and that won't happen. It is a glitch in CWM and battery stats.
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thomasskull666 said:
First of all, I know what most people will say: wipe battery stats and condition the battery, but I'm too lazy.
So recently I've been noticing that sometimes my battery charge percentage goes up rather than down. For example, tonight I put my phone in my pocket at 18% battery left. I watched some tv and checked it again ~1.5 hours later to find that it was now at 32%. I've seen this happen on occasion before, but never such a significant jump.
Anybody have any clue as to why it would do this? Other than the fact that my battery stats are needing to be wiped. idk just seems weird to me
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Magic pockets?
The Root said:
Magic pockets?
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Haha I wish
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thomasskull666 said:
First of all, I know what most people will say: wipe battery stats and condition the battery, but I'm too lazy.
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That's your problem. /thread
k0nane said:
That's your problem. /thread
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Lol
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"Conditioning your battery" after wiping battery stats takes nothing more than regular usage of your phone. All the people that say you have to do all that stuff after calibration are just recommending it because it causes your phone to adjust faster.
Just charge it all the way and use battery calibration to wipe stats. Your battery life will take a few days of use to improve to good levels, but it works and you don't have to do anything other than what you normally do with your phone.

And I thought it was battery drain

After flashing Ics my battery couldn't seem to stay high so one day, I took the liberty of finishing the battery and...
THIS IS THE PURFECT EXAMPLE OF WROMG BATTERY INFO C:
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LOL XD
This pic is just soooooo funny. I have no clue why but looking at that makes me laugh XD
very very wrong battery readings.....
happens lots of times after flashing.....weirdest thing that was happening to me was battery rapidly falling from 50 to 30% and than slowly growing to 40%.....
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what kernel are you using? if it the devilkernel in the advanced options do wipe battery stats
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Lol
Sometimes battery stats behave strange
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gaspernemec said:
happens lots of times after flashing.....weirdest thing that was happening to me was battery rapidly falling from 50 to 30% and than slowly growing to 40%.....
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Yes, I have to agree. This has also happened to me. I have actually had this happened when I turned my phone off one day. Before turning it off it had 60% battery, after a minute I turned it on and it said 20% battery. Also, has it happened to you that you charge it leave a couple of hours and when you unplug it rapidly falls to 70% or less? LOL! But it is nothing a full charge and batterystats.bin wipe wont fix.
Marcxd2214 said:
what kernel are you using? if it the devilkernel in the advanced options do wipe battery stats
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Wiping battery starts has nothing to do with reported battery percentage. Similar results can be obtained by setting your phone face up on the coffee table, watching any random show on tv, and doing Zumba for 30 minutes. In other words... none.
Battery stats, which is only a list of the apps that have put a demand on the battery, is already cleared each and every time the os is rebooted
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Strange
Yea, it happen to mine too after ICS 4.0.3 upgrade, does anyone can help?
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jessietwf said:
Yea, it happen to mine too after ICS 4.0.3 upgrade, does anyone can help?
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This is what I have read on the XDA forums and it has worked for me.
Completely charge your phone to 100% (Full battery charge) without unplugging. Once it is charged, without unplugging it, reboot to recovery and wipe battery stats in the ADVANCED section. As soon as your wipe it, very quickly unplug the phone. (as fast as possible). Once you do this, reboot your phone and completely drain it to until it turns off and you cannot turn it back on unless is plugged. Once it is drained charge it completely full withot unpluggin it or turning it on.(Best time to do this is at night, since you are probably not going to use it while you sleep). After that just use it daily. You have to give it a couple of days so the battery syncs up. Hope I helped out!
Supermannypr said:
This is what I have read on the XDA forums and it has worked for me.
Completely charge your phone to 100% (Full battery charge) without unplugging. Once it is charged, without unplugging it, reboot to recovery and wipe battery stats in the ADVANCED section. As soon as your wipe it, very quickly unplug the phone. (as fast as possible). Once you do this, reboot your phone and completely drain it to until it turns off and you cannot turn it back on unless is plugged. Once it is drained charge it completely full withot unpluggin it or turning it on.(Best time to do this is at night, since you are probably not going to use it while you sleep). After that just use it daily. You have to give it a couple of days so the battery syncs up. Hope I helped out!
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No offense, but what you have read is incorrect and is rooted in a misunderstanding about how the os and li-ion batteries work.
1. Wiping battery stats does nothing pertaining to charge indication. The file cleared is an already blank file that lists nothing more than a list of the apps that have consumed power. This file is cleared by the is on every reboot already.
2. Completely draining the battery shortens its serviceable life.
Any "results" that are seen by doing the above are merely attributable to the placebo effect.
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Battery Draining While Phone is Off

I just got my nexus 4.
Last night I charged the phone completely, disconnected if from charger and turned the phone off.
This morning when I turned it on the battery was drained 15% down to 75%
Does anyone else have this problem?
Defect with phone?
Thanks for help.
You have to let the battery settle and let the battery stats calibrate. The % that you had after rebooting is what you really have. The first time it wadjt showing the right amount.
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android88 said:
You have to let the battery settle and let the battery stats calibrate. The % that you had after rebooting is what you really have. The first time it wadjt showing the right amount.
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He said he turned his phone off...
I don't see how it can lose 15% if it is completely shut off. That's weird.
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Crisisx1 said:
He said he turned his phone off...
I don't see how it can lose 15% if it is completely shut off. That's weird.
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Then when he turned it on, he "lost" 15%. Like I said in my post, what it said before he turned it off was wrong. He didn't really lose 15%. It was just displaying the wrong thing.
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You might have some apps running in the background that is preventing your device from going to deep sleep to conserve power. Check what's running in the background when your phone is off. You can use better battery stats app to check what's consuming your battery level.
Are your running a custom kernel? I've heard of a few cases with kernels where even though the phone is sleep and screen off just touching the screen will cause battery drain.
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I'm guessing you either meant it was at 85% or drained 25% down to 75
Either way this is common on a lot of phones now due to the way the battery gauge works. When you turn your phone off then on it doesn't always remember where it was so gives a value and then if it's under where it should be it soon recalculates and can either starts going up or stays on the same value for a long time. This has happened on both my old SGS2 and also my N4 for example this morning while my phone was being drained by the FB app keeping GPS on, I turned off location access and then restarted my phone which dropped a few extra % and then sat for a good few hours at that % even though I used my phone.
Moral to the story is don't always take what you see as true, give it time to settle and see how it goes over a few charging cycles.

HELP !!!!!!!!!!!!

Yesterday at night I left my phone at 92% charge and when I woke up the battery was 12%...my phone starts to get heated up when I charge now..wht should I do ???
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laksh2293 said:
Yesterday at night I left my phone at 92% charge and when I woke up the battery was 12%...my phone starts to get heated up when I charge now..wht should I do ???
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There must be something killing the battery or running in the background
try closing all the app in the background reboot and see
Or try Reset and check issue should be gone
Check serial number if it starts with BD chances are you have a faulty battery (Samsung announced a recall on that batch of batteries)
Is your battery 'swollen' in the middle? If so this is a symptom of the bad batteries
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