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After unplugging, battery stayed at 100% for hours, recently installed cyanogenmod

My buddy recently rooted my phone, I don't know much about this stuff yet. I unplugged my phone and it stayed at 100% battery for like 6 hours. My buddy says we need to wipe battery stats.
Can anybody help me with this?
Thank you

Download battery calibration from the market. Its free and the easiest way to do it.
Sent from my HTC Thunderbolt

yes wipe your battery stats

I've had problems with aosp roms doing that. The battery percentage sticks, then when you reboot, it updates.
Not sure what the cause is, but wiping battery stats didn't help.

Thanks for the replies.
I'll try all three.
How would I go about wiping battery stats? Does the phone need to be charged to 100 before doing this? Please walk me through it as if I were a 4 year old.

Recovery/ advanced/ wipe batt stats/ reboot to recovery/ system reboot.

should battery be full/plugged in to full when this happens?
If I do this, should I avoid downloading the app mentioned above?

Kdeli said:
should battery be full/plugged in to full when this happens?
If I do this, should I avoid downloading the app mentioned above?
Click to expand...
Click to collapse
Charger should be unpluged , battery at 50% or above is ok , download the app after you are finished.

Kdeli said:
should battery be full/plugged in to full when this happens?
If I do this, should I avoid downloading the app mentioned above?
Click to expand...
Click to collapse
it is best to do a full charge.
have the app on your phone, clear stats
use phone until battery is fully dead, or close to it
recharge again to 100% with out unplugging it
and you should be good.
however charging it to 100% and wiping stats will be fine.
you can do it from the battery app mentioned above, or once charged to 100%, hold power, select reboot, choose recovery, once clockwork shows up, go to advanced, wipe battery stats, "go back" reboot phone.

Thank you all very much. It is much appreciated.
I look forward to actually doing some reading in my spare time (yea right, spare time,) so that I can be more educated.
-k.d.

Battery calibration questions

I just flashed a new kernel on ic 4.6.1.
Do I wipe battery stats, charge to full, then turn everything on to run out the battery, then charge to full
Or charge battery to full, run it out, then wipe then charge to full?
I just had it fully charged, wiped battery stats, killed the battery and am now chargoing to full
Which method is right?
Sent from my HTC Sensation 4G using xda premium

rickyiswhite said:
I just flashed a new kernel on ic 4.6.1.
Do I wipe battery stats, charge to full, then turn everything on to run out the battery, then charge to full
Or charge battery to full, run it out, then wipe then charge to full?
I just had it fully charged, wiped battery stats, killed the battery and am now chargoing to full
Which method is right?
Sent from my HTC Sensation 4G using xda premium
Click to expand...
Click to collapse
Fully charge. Then wipe stats. When you wipe the battery stats, it should be full, then your device can know what a full charge is. It doesn't really need to know when the battery is empty or partial.
Google would have found you a couple of articles about this... I answered this question earlier this week in another forum.
Try googling "wipe battery stats android", and you should find a good article on Lifehacker as well as a couple of informative blog entries.

Battery calibration is a myth
Battery calibration is a myth guys
https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT

mic180 said:
Battery calibration is a myth guys
https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT
Click to expand...
Click to collapse
Yeah, I've seen and read that post. But a quick calibration let's me hit 100% charge without having to trickle charge for excessive hours.
You can say it's not necessary, but the truth is...my phone sometimes says 'Charged' then when I remove it from the charger it immediately drops to 98%. Calibration changes this.
Theory is great. But the real world is the real world.

[P] Phone is charging itself?

Hello. This issue has been going on for a while now. But when I take my phone off the charger when its not fully charged. The battery percentage keeps going up. For example if I unplug it at 78%, the percentage will gradually go up to like 86-88%. Can anyone give me a hint as to why its doing this? Thanks!
Sent from my SAMSUNG-SGH-I727 using XDA

MrTenseJACOB said:
Hello. This issue has been going on for a while now. But when I take my phone off the charger when its not fully charged. The battery percentage keeps going up. For example if I unplug it at 78%, the percentage will gradually go up to like 86-88%. Can anyone give me a hint as to why its doing this? Thanks!
Sent from my SAMSUNG-SGH-I727 using XDA
Click to expand...
Click to collapse
Battery stats are wonked out.
Do you have Clockwworkmod recovery installed? Or is this a pure stock unrooted?
EDIT: Mr. Jacob, what are you tense about? LOL ! Just kidding....

Try using an app called battery calibration (can be found in the app market) when the phone is fully charged. This will reset all the battery stat logs and set your 100% to a true 100%

I have clockwork installed. I'm running SkyICS rom. And I have already tried battery calibration.
PS: And nothing really xD its been my screen name since the early Xbox days
Sent from my SAMSUNG-SGH-I727 using XDA

Battery calibration does nothing. Normally I wouldn't recommend that u COMPLETELY drain the skyrocket battery as its lithium based and can cause dead cells, yours needs calibrating, and wiping battery stats or using a battery calibration app won't help (both of these are myths by the way, Google if). Use phone until its completely dead, and won't turn on at all, only vibrate with a black screen. Then charge phone for a continuous 8 hours uninterrupted, that should fix it

MrTenseJACOB said:
I have clockwork installed. I'm running SkyICS rom. And I have already tried battery calibration.
PS: And nothing really xD its been my screen name since the early Xbox days
Sent from my SAMSUNG-SGH-I727 using XDA
Click to expand...
Click to collapse
As a first try, charge to 100%. Then go into CWM recovery and wipe battery stats. It should be good to go....On ICS, thsi seems to fix it for me.
IF you then stilll have weird battery problems a proper recallibration will be in order.
I had to just wipe battery stats when charged to 100%. DON'T just wait for 100%. Alow the phone to get to fully charged.....if you have "Full Charge" notification on your ROM wait for that.

chappatti said:
As a first try, charge to 100%. Then go into CWM recovery and wipe battery stats. It should be good to go....On ICS, thsi seems to fix it for me.
IF you then stilll have weird battery problems a proper recallibration will be in order.
I had to just wipe battery stats when charged to 100%. DON'T just wait for 100%. Alow the phone to get to fully charged.....if you have "Full Charge" notification on your ROM wait for that.
Click to expand...
Click to collapse
Half of this is right chappatti
charging to 100% and letting it sit for at least an hour even after full charge notification is the best way. Wiping battery stats in cwm won't actually do anything though, thats a myth.

Actually, for lithium ion batteries, it is not recommended to let them discharge to zero. It's better to run it down to 10% or so (i usually do about 5%). and then charge it completely. Rinse and repeat over a few days, and there should be a difference.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Sent from my SAMSUNG-SGH-I727 using Tapatalk

icenight89 said:
Half of this is right chappatti
charging to 100% and letting it sit for at least an hour even after full charge notification is the best way. Wiping battery stats in cwm won't actually do anything though, thats a myth.
Click to expand...
Click to collapse
Yup, ice, ur are right. Wiping stats is not about battery charging stats....
https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT
What a revelation !! It's like realising my religion is all wrong !
BUT, BUT, BUT : reading the whole battery stats discussion, it i also clear that the business of charging for an hour after 100% is also not worthwhile, but is just a customer gimmick to make people feel thier batteries are topped off. This was started by HTC and the consensus is that is also does not help.
The simple solution is to let the battery go through 2-3 charge-discharge cycles.

Saitou33 said:
Actually, for lithium ion batteries, it is not recommended to let them discharge to zero. It's better to run it down to 10% or so (i usually do about 5%). and then charge it completely. Rinse and repeat over a few days, and there should be a difference.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Sent from my SAMSUNG-SGH-I727 using Tapatalk
Click to expand...
Click to collapse
A good read. Very useful, thanks !

I had this same issue with my Exynos G2, my problem was flashing different roms or putting a theme on. My fix came not by wiping battery stats but only doing flashes at 100% and plugged in. I never noticed it on my SR though. I'm not saying don't try what the others say, just giving you more options.

Why does the HTC one s shuts off at a certain point?

My phone shut off around 14%

Mine at around 5 or 0. Usually 0.

is there a way to fix it so it wont shut off til around the single digits percent?

Never happened to me. Try wiping battery stats and calibrating your battery.
Sent from my HTC VLE_U using XDA

How long have you had your phone? If its brand new give it a week. Other than that I say try battery calibration app as mentioned above.
Sent from my HTC VLE_U using xda premium

i got it like a week and half ago

Mine shuts off at 0 exactly. Wipe battery stats and calibrate the battery. Drain it dead then fully charge it.

how do i exactly wipe battery stats?

JimmyNeutronSwag said:
how do i exactly wipe battery stats?
Click to expand...
Click to collapse
Reboot into recovery (assuming you've rooted and installed cwm...) go to advanced then wipe battery stats.
If you want to do it from an App you can pick up Battery Calibrator on the market and that will do the same thing but either way you need root.
The idea is to wipe stats and let the battery drain down all the way and let it recharge to full, this will give you a true value for the battery.

ooh, thanks. but the only problem is figuring out how to root since i downloaded the app

You have to unlock the bootloader. There's a post for that in the dev section

battery percentage

I don't know if i'm being paranoid or what about my battery %, but whenever my phone reaches around close to 30% it goes down instantly to 19% in like a minute all the time.. Not sure if my phone isn't used to my rom yet but it did that when i flashed sc7 and sc6 (gb).. Has anyone experienced this issue before, or my battery needs to be replaced?

jangeles323 said:
I don't know if i'm being paranoid or what about my battery %, but whenever my phone reaches around close to 30% it goes down instantly to 19% in like a minute all the time.. Not sure if my phone isn't used to my rom yet but it did that when i flashed sc7 and sc6 (gb).. Has anyone experienced this issue before, or my battery needs to be replaced?
Click to expand...
Click to collapse
Wipe battery stats?
If that even works on this device, I know it was just placebo on Samsung devices.

Yes you wipe battery stats through custom recovery. But you need to calibrate your battery as well. Each time you switch ROMs, be sure to do this. I was having same issue except mine would hit 30% then instantly drop to 5%. Calibrating the battery and a few setcpu tweaks fixed my insane drainage.
Sent from my MB865 running a beastly CM10

Okay thank you, when i charge it 100% i will wipe battery stats because it seemed to annoy the heck outta me. When it reaches 100% i will wipe battery stats, i don't know why i didn't think of that. But yes i believe my battery needs to be calibrated

jangeles323 said:
Okay thank you, when i charge it 100% i will wipe battery stats because it seemed to annoy the heck outta me. When it reaches 100% i will wipe battery stats, i don't know why i didn't think of that. But yes i believe my battery needs to be calibrated
Click to expand...
Click to collapse
Go grab the Battery Calibration app from Google Play, it will alert you when the battery reaches full charge and you can re-calibrate. It'll also show the mAh value when fully charged, something good to observe...
Sent from my HTC One S

Apex_Strider said:
Go grab the Battery Calibration app from Google Play, it will alert you when the battery reaches full charge and you can re-calibrate. It'll also show the mAh value when fully charged, something good to observe...
Sent from my HTC One S
Click to expand...
Click to collapse
yeah i read your post on battery calibration and download watchdog to see if there is any rogue apps sending data in the background. But for some reason i can't get my battery to 100% its always stuck at 99%. so i just calibrate it at 99 at 4296( (not sure on mv)

jangeles323 said:
yeah i read your post on battery calibration and download watchdog to see if there is any rogue apps sending data in the background. But for some reason i can't get my battery to 100% its always stuck at 99%. so i just calibrate it at 99 at 4296( (not sure on mv)
Click to expand...
Click to collapse
Try the charging trick in my 2nd post, might solve that for you...
Sent from my HTC One S

Apex_Strider said:
Try the charging trick in my 2nd post, might solve that for you...
Sent from my HTC One S
Click to expand...
Click to collapse
DId that, didn't fix the issue.. But its nothing really significant to me because once it reaches 100 it goes down to 99 rather quickly.. but it stays at 99 for awhile unless i use it
edit: well i just reflashed a rom yesterday.. maybe i need to do more calibrations

jangeles323 said:
DId that, didn't fix the issue.. But its nothing really significant to me because once it reaches 100 it goes down to 99 rather quickly.. but it stays at 99 for awhile unless i use it
edit: well i just reflashed a rom yesterday.. maybe i need to do more calibrations
Click to expand...
Click to collapse
The full charge (100%) to 99% immediate drop is completely normal with this phone...
Sent from my HTC One S

Apex_Strider said:
The full charge (100%) to 99% immediate drop is completely normal with this phone...
Sent from my HTC One S
Click to expand...
Click to collapse
yeah i'm completely aware of that.. which isn't a problem for me anyways.. But it should show that it can reach 100% on the percentage when charging but doesn't.. Anyways that isn't an issue anyways its the drainage from 30 down to 19% in an instant.. which i hopefully fixed when the battery is now calibrated thanks to that app

Hmmm I just saw my battery went from 30 down to 20 again.. maybe my battery isn't calibrated enough? i followed the steps in charging it phone off and then calibrating the battery with the app..

jangeles323 said:
Hmmm I just saw my battery went from 30 down to 20 again.. maybe my battery isn't calibrated enough? i followed the steps in charging it phone off and then calibrating the battery with the app..
Click to expand...
Click to collapse
Which App? All you need to do is go into CWM and wipe battery stats. Anything else you use will not work right on this phone. After that it needs to be 3 "FULL" battery cycles (fully charged to fully dead, or to 5-10% at least, then fully charged again).

jimbridgman said:
Which App? All you need to do is go into CWM and wipe battery stats. Anything else you use will not work right on this phone. After that it needs to be 3 "FULL" battery cycles (fully charged to fully dead, or to 5-10% at least, then fully charged again).
Click to expand...
Click to collapse
battery calibration app.. I used it to calibrate it but I usually only charge my phone when it reaches under 10% or so..
Sent from my MB865 using xda app-developers app

I have the exact same issue as does my wife. She is on stock ics and has never done anything on her phone whereas I am on svc7 rooted and have done everything anyone ever recommended to eliminate that loss from 30% to 19%. No avail.
Sent from my MB865 using xda app-developers app

Bump...

Pilgrimtozion said:
I have the exact same issue as does my wife. She is on stock ics and has never done anything on her phone whereas I am on svc7 rooted and have done everything anyone ever recommended to eliminate that loss from 30% to 19%. No avail.
Sent from my MB865 using xda app-developers app
Click to expand...
Click to collapse
How quickly is the discharge from 30-19%? Can you attach a log of wakelocks found? Have you tried another battery?
Brought to you by Carl's Jr.

Apex_Strider said:
How quickly is the discharge from 30-19%? Can you attach a log of wakelocks found? Have you tried another battery?
Brought to you by Carl's Jr.
Click to expand...
Click to collapse
Well same thing here..switched off the screen and when switched back on whoa battery is at 19% from 30%
Sent from my ME865 using xda app-developers app

Literally from one second to the next it goes down 10% or so. Don't have another battery but my wife has the same thing. Does it after a factory reset as well as after installing 60 apps. Before and after battery calibration. None of it makes any difference.
The only other thing I can think of is that a certain battery percentage kicks in a certain lower clock speed and that that process kicks 10% of the battery. Not likely in my mind, but possible.
Sent from my MB865 using xda app-developers app

After about 3 weeks after making this thread I still get the same thing.. From 30% down to 20% in seconds sometimes it happens at around 40% which is utterly absurd

I have also noticed this problem sometimes, when I do run it that low. My jump is from around 30 to 20 percent. I did wipe stats a couple of days ago after I flashed swiftytrix from ICS leak 1. However, after wipe stats, I didn't discharge to completely dead, but close to it. Does that matter?