Inaccurate battery% ALWAYS

[Insomaniac10]

Regardless of any calibration method i try, i can never get an accurate battery reading. (Before i continue, ill point out that every app ive used to check my battery health has said "good")
Ive tried calibrating with/without the calibration app. Ive tried just deleting the batterystats via rootexplorer. ive tried calibrating before/after cycling. nothing seems to work.

the reason i know its not working, is because i will calibrate/cycle. lets say ill start a day with 100%. ill unplug my phone, leave for work, and use my phone moderately to feel out the battery drain. then at some point, ill plug it into my charger at work......just now, for example, after three hours of use my phone went from 100%-71%....i went to charge it, and once i plugged it in my percentage display changed from 71% to 63%!!! my percentage will constantly jump up and down throughout the day when i plug/unplug my phone.

anyone else experience this?

PS - its not ROM or kernel, its been happening to me for the last 2-3 months...ive flashed several roms/kernels in that timespan, and have ODINed at least once.

PPS - Ill also add that when i unplug my phone to start my day (after its been charging all night), it will stay at 100% for about 30-45min, at which point it will then start draining on an average of 1%/10min. i feel this may have something to do with it.....does it have something to do with me calibrating at too high of a voltage??

 

[stanton93]

Well as for your inaccurate battery readings, i would suggest that you to odin back to stock and. Leave the phone to charge for 4hours(the time my phone takes to charge from 0-100%)then use the battery calibration app or wipe battery stats via cwm. And as for the draining it might be corrected after you calibrate it.

I know this coz I have experienced this in the past and i'd lose around 1% every 20-25mins now.

Sent from my SGH-T959 using XDA App

 

[Insomaniac10]

Well as for your inaccurate battery readings, i would suggest that you to odin back to stock and then use the battery calibration app or wipe battery stats via cwm. And as for the draining it might be corrected after you calibrate it.

I know this coz I have experienced this in the past and i'd lose around 1% every 20-25mins now.

Sent from my SGH-T959 using XDA App

please read OP

 

[Insomaniac10]

UPDATE: i just rebooted my phone at 56%....it booted up and it displayed 24%......wtf is this

 

[s15274n]

You said you've ODIN'd like once.... dude, if you aren't going to be cool with suggestions, esp the most obvious ones, not sure what it is you expect from us.

Should I hit thanks? JK


Call T-Mo and tell them and get a new battery.... they WILL give you one.

 

[movieaddict]

the best way to calibrate ur phone and its worked perfect for me. Charge it to 100% and then unplug it and as soon as unplug it go to sgs tools and run apply script and inside apply script there is delete battery stats. Click on that and it will take less then 10 sec and ur battery will be running great. Now this works great on my phone i hope it works on urs nicely.

 

[}{Alienz}{]

At your PPS: This is completely normal and expected battery behaviour. It SHOULD happen. Here is why
http://phandroid.com/2010/12/25/you...is-lying-to-you-and-its-not-such-a-bad-thing/

Please read this article fully to understand why it happens and why it SHOULD happen. As for your plug/unplug deviations...I have seen those but it has rarely been more than 2-3% difference which is around the normal range. It sounds like a bad calibration issue to me but then again I can't be sure, especially if you said you have done a calibration correctly. You can try a new battery like the poster above me suggests.

 

[Insomaniac10]

You said you've ODIN'd like once.... dude, if you aren't going to be cool with suggestions, esp the most obvious ones, not sure what it is you expect from us.

Should I hit thanks? JK


Call T-Mo and tell them and get a new battery.... they WILL give you one.

So if i clearly state in the OP that it was happening to me before and after ive ODINed, and someone says you should ODIN...thats not a lazy suggestion?

or if someone says to try calibrating, when I stated several times in the OP that ive tried multiple calibration methods...thats not a lazy suggestion?

What i expect is if ive pointed out that ive already taken troubleshooting steps, then dont suggest those troubleshooting steps. no one is forcing a response, so if you dont know, simply dont answer. dont just read the title, skim the post, and give programmed suggestions.

theres absolutely nothing wrong with trying to seek out answers other than the conventional ones. ODIN and reflash are the laziest responses......granted, they will often fix problems, but there may be other ways to solve certain issues.

The goal of my OP was to see if anyone else had experienced it, and if someone responded affirmatively, i would ask them about their calibration methods and we could brainstorm. I would much rather seek out problem-solving knowledge before resorting to ODIN/reflash/new battery/new device...which teach nothing.

 

[Insomaniac10]

the best way to calibrate ur phone and its worked perfect for me. Charge it to 100% and then unplug it and as soon as unplug it go to sgs tools and run apply script and inside apply script there is delete battery stats. Click on that and it will take less then 10 sec and ur battery will be running great. Now this works great on my phone i hope it works on urs nicely.

This is typically the method i use. i usually let it charge for an hour or so beyond when it reaches 100%, just to ensure i have a full charge. this has not worked for me. i also take it a step further and let my phone discharge all the way until it dies, let it charge overnight when powered off, then ill wipe the battery stats first thing when i wake up.

At your PPS: This is completely normal and expected battery behaviour. It SHOULD happen. Here is why
http://phandroid.com/2010/12/25/you...is-lying-to-you-and-its-not-such-a-bad-thing/

Please read this article fully to understand why it happens and why it SHOULD happen. As for your plug/unplug deviations...I have seen those but it has rarely been more than 2-3% difference which is around the normal range. It sounds like a bad calibration issue to me but then again I can't be sure, especially if you said you have done a calibration correctly. You can try a new battery like the poster above me suggests.

i will definitely read this...this is something ive always been very curious about

 

[Insomaniac10]

At your PPS: This is completely normal and expected battery behaviour. It SHOULD happen. Here is why
http://phandroid.com/2010/12/25/you...is-lying-to-you-and-its-not-such-a-bad-thing/

Please read this article fully to understand why it happens and why it SHOULD happen. As for your plug/unplug deviations...I have seen those but it has rarely been more than 2-3% difference which is around the normal range. It sounds like a bad calibration issue to me but then again I can't be sure, especially if you said you have done a calibration correctly. You can try a new battery like the poster above me suggests.

this was an extremely informative read. it doesnt shed light on all of my problems...but it definitely explains the longer battery life upon unplugging in the morning. my only question is how am i getting that extra juice when im not actually "bump charging"...i just plug it in when i go to bed, and unplug it when i wake up.....maybe my phone doesnt stop sucking in a charge the moment it hits 100%?

i agree with what he says about not paying too much attention to your battery.....but when its bouncing up and down by 20% increments, thats cause for concern haha. im going to calibrate one more time tonight, and i i get similar results i will swap batteries with another vibrant user.

do you guys suggest deep cycling, before or after wiping battery stats? (or should i just wipe stats at a full charge, and not deep cycle at all) >>> there seems to be different opinions on deep cycling throughout XDA

 

[}{Alienz}{]

I have had a similar issue. After flashing Roms, plyugging and unplugging it was jumping by a good 10-15%. This turned out to be a simple bad calibration. Normal jumping should be up to 2%, more than that usually indicates bad calibration. Granted, normally nowdays, mine does not jump at all.

I recommend cycling it fully empty. That means, go ahead and drain to 0. Then let it shut off. Then turn it on again. Keep turning it on till it STOPs being able to turn on. Then charge it completely. Don't charge overnight as that will charge to 90-95% as the article suggested. Charge it while you're awake so you see when it hits 100%. It's even preffered if you charged it while the phone is off. After it hits 100%, give it another hour on the charger. You can even bump charge to ensure it hits full charge. To bump charge, after it's full, disconnect and reconnect the charger every 20 minutes for that last hour you're charging. Then unplug it, boot into recovery using the 3 buttons. Wipe the battery stats from there. Boot normally into your ROM. See if it is still jumping by 20%. Worst case scenario should be a 5% jump. Let us know what happens.

 

[s15274n]

^ See, there is my confusion... there is a great example of how to calibrate, but the OP seems to get in a tiffy for offering up a suggestion he has done (calibrating). I'd also be cautious about the bump charging as that will really hurt the battery. I'm not one to try and get something for free, but why not just get a new battery?

 

[}{Alienz}{]

^ See, there is my confusion... there is a great example of how to calibrate, but the OP seems to get in a tiffy for offering up a suggestion he has done (calibrating). I'd also be cautious about the bump charging as that will really hurt the battery. I'm not one to try and get something for free, but why not just get a new battery?

I support the new battery notion too. It's FREE.

 

[Solissfiend]

Drain your phone til its dead.... charge it up full.... run a battery calibration app on the market and let it die fully again then charge to 100 percent one last time... good to go!

 

[Solissfiend]

You might even try using a differnet battery

 

[oka1]

Regardless of any calibration method i try, i can never get an accurate battery reading. (Before i continue, ill point out that every app ive used to check my battery health has said "good")
Ive tried calibrating with/without the calibration app. Ive tried just deleting the batterystats via rootexplorer. ive tried calibrating before/after cycling. nothing seems to work.

the reason i know its not working, is because i will calibrate/cycle. lets say ill start a day with 100%. ill unplug my phone, leave for work, and use my phone moderately to feel out the battery drain. then at some point, ill plug it into my charger at work......just now, for example, after three hours of use my phone went from 100%-71%....i went to charge it, and once i plugged it in my percentage display changed from 71% to 63%!!! my percentage will constantly jump up and down throughout the day when i plug/unplug my phone.

anyone else experience this?




Topshelf, I have run into these problems, There are a couple of things that cause the battery to be wonky.

1st Samsung has the battery set not to 100% but actually less (95-98%) so when it is charged and reads 100% as soon as you unplug you get a immediate reading of 95-98% (nice huh?)

The dev/mods, and others have tried to rectify this. No one has found an exact fix for this. On thing I have found that does help is to charge to 100% then unplug and then plug into the computer and recharge back to 100% (the lower milliamp off the computer seems to allow you to get to a higher percentage). Then calibrate. Now when you do that the battery calibration/battery widget/and phone All will read more close (for me +/-3%). This is one of the issues you raised.

The other is the battery drain, with some of the custom roms the gallery seems to one of the culprits, mms sometimes stays on with others and some others that are in TSR but instead of being asleep they are taking resources.

I have used systems panel to trouble shoot and that has helped me. I think you may want to ask Explodingboy70, Roman or whitehawkx, they know more on this and maybe can help.

Hope you get it solved......... stay with it you will........... I did.........


PS the mv setting for the battery is supposed to be 4200mv mine never gets above 4196mv