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My phone won't charge to 100

Anyone else experiencing this?
I have tried depleting the battery completely and fully charging it overnight, then turned it on and proceeded to charge again afterwards for 2 hrs but it just peaked at 97 for almost an hour and would not go on any further.
Also tried forcing battery calibration with the battery at 97 with the app. Also did the same thing on a separate occasion with full overnight charge, with recovery wipe battery stats.

This is normal.
It's safer for battery life.
You'll never have 100%.

anremi is right. But you could try bump charging if you MUST have 100% charge.
Sent from my Nexus S using XDA Premium App

So how do I know if my battery is properly calibrated?

kingofthebraves said:
So how do I know if my battery is properly calibrated?
Click to expand...
Click to collapse
if you are at stock, just don't think about it... if you are at custom roms (or just rooted), just use the proper option in cwm recovery (or battery calibration app, from market)

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.

[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.

[Q] Flashing ROM's at less than 100% battery

Will flashing a ROM with less than 100% battery harm anything?
My wife's phone is still having issues with the NEWsense rom after getting a new battery from sprint. I flashed NEWsense while the phone was charging, at the time of the flash it was at roughly 45%. When charging, it will say it's charged to 100%, but after 3 hours of light use with wifi on, it's down to 27% already.
Is this something the battery calibration option in the NEWsense control panel would fix? Or is wiping battery stats the best way?
I could always charge to 100%, then re-flash the rom.
I guess I'm just lost as to why this keeps happening.

I flash ROMs with whatever battery I have left and never had an issue.
I don't wipe battery stats because each time the battery charges to full the stats are wiped anyways.
A new battery can take a few charge cycles to start performing like they should so just give it some time.
Sent from my HTC MyTouch 4G Slide running MikXE

bryank930 said:
Will flashing a ROM with less than 100% battery harm anything?
My wife's phone is still having issues with the NEWsense rom after getting a new battery from sprint. I flashed NEWsense while the phone was charging, at the time of the flash it was at roughly 45%. When charging, it will say it's charged to 100%, but after 3 hours of light use with wifi on, it's down to 27% already.
Is this something the battery calibration option in the NEWsense control panel would fix? Or is wiping battery stats the best way?
I could always charge to 100%, then re-flash the rom.
I guess I'm just lost as to why this keeps happening.
Click to expand...
Click to collapse
Did you do a Full Wipe before Flashing the Rom? Did you Restore any Data? In WiFi do you have it set for WiFi-performance? What is your WiFi-sleep Policy set at? Oh BTW did Sprint send you a 1500mAh Battery, or the 1400mAh Battery?

How to Wipe Battery Stats On Nexus S

Hello guyz,
I want to wipe battery stats of my nexus s but there is no option like that in cwm>Advance>Battery Wipe Stats
Can anybody help me in this?Thx

don't ... it's quite useless
( there are tons of app,but u can also charge to 100% and battery stats are deleted automatically, or pull out battery, anyway it doesn't affect battery life ... )

Yeah as the last poster said, a Google person came out and busted the myth that wiping battery stats helps in batterylife/precise readings. The stats wipe on their own after each cycle, I don't know exactly how long those cycles are but most likely after full charges/a day or two etc.
Its best to just let it be and it will calibrate itself.
But if you really want to the batterystats.bin file is located in the system or data folder in the root directory, delete it and it will automatically start a new one.

I wan to wipe battery stats of my nexus s bcaz it's not fully charging to 100% Only charging to 98% and saying fully charged.Today i have flashed a new rom and now it's charging to only 95%.What the heck problem it is

rakeshbro said:
I wan to wipe battery stats of my nexus s bcaz it's not fully charging to 100% Only charging to 98% and saying fully charged.Today i have flashed a new rom and now it's charging to only 95%.What the heck problem it is
Click to expand...
Click to collapse
Some ROMs have a ceiling for charging the battery in order to 'preserve the battery' so it doesn't completely die as fast. So they make it so that it can't charge all the way to 100%
So its not an actual problem on your phone and wiping stats won't help you
However if you still want to be able to charge to 100% you can download nstools which has an option to fully charge
Sent from my Nexus S using xda app-developers app

kriout said:
don't ... it's quite useless
( there are tons of app,but u can also charge to 100% and battery stats are deleted automatically, or pull out battery, anyway it doesn't affect battery life ... )
Click to expand...
Click to collapse
abccg said:
Yeah as the last poster said, a Google person came out and busted the myth that wiping battery stats helps in batterylife/precise readings. The stats wipe on their own after each cycle, I don't know exactly how long those cycles are but most likely after full charges/a day or two etc.
Its best to just let it be and it will calibrate itself.
But if you really want to the batterystats.bin file is located in the system or data folder in the root directory, delete it and it will automatically start a new one.
Click to expand...
Click to collapse
frenchie007 said:
Some ROMs have a ceiling for charging the battery in order to 'preserve the battery' so it doesn't completely die as fast. So they make it so that it can't charge all the way to 100%
So its not an actual problem on your phone and wiping stats won't help you
However if you still want to be able to charge to 100% you can download nstools which has an option to fully charge
Sent from my Nexus S using xda app-developers app
Click to expand...
Click to collapse
Ok guyz thx for ur post and ur time.

Batterystats is nonsense. Batterystats are wiped every time you charge your phone to full or almost full. It makes no sense to wipe battery stats with an app. Fully charging your phone and letting it turn itself off because its empty works best!
Me Gusta!

I used an app called battery calibration..
Sent from my Nexus S using xda app-developers app

rakeshbro said:
I wan to wipe battery stats of my nexus s bcaz it's not fully charging to 100% Only charging to 98% and saying fully charged.Today i have flashed a new rom and now it's charging to only 95%.What the heck problem it is
Click to expand...
Click to collapse
I had the same issue when i was using stock google ICS/JB ROM.
It disappeared when i made the switch to CM.
No need to delete batterystats.bin

Just flash kernel with blx