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[APP] Battery Calibration - EASIEST WAY! - Version 1.2 (10th April, 2011)

All credit goes to mariosage over at XDA Android Apps section.
Original link: [APP] Battery Calibration - EASIEST WAY! - Version 1.2 (10th April, 2011)
I just posted here so that Nexus S member realise that they need to calibrate their battery before giving comment that they having bad battery life
[APP] Battery Calibration - EASIEST WAY! - Version 1.2 (10th April, 2011)
Battery Calibration
[APP] by marosige
version 1.2
Requirements: Android 2.1+ | Root permissions
Calibration needs to be done after flashing a new ROM, but you can calibrate any time you think your battery is miscalibrated. This program does it by removing the batterystats.bin system file. The OS generates a new clean batterystats file soon, thus any fake information from the previous ROM is removed.
It's suggested, but not necessary, to let the phone fully discharge after calibration, then charged to 100% without break.
The app shows your actual battery status, and only allows you to start the calibration (i.e. removes the file) when it's fully charged, unless you force earlier calibration.
The voltage meter can be useful too. Full charge is around 4200mV.
There is an option to beep when 100% is reached so you don't have to closley follow the changes.
EXTRA NOTE FOR NEXUS S:
Since our Nexus S has default of charging limit till 95%,
we'll need to do some setting modification to enable it to charge till 100%.
1st, Go to Setting, select Display, change the ScreenOut Time to the longest (30 minutes for mine).
2nd, Leave it there and charge it, remember to touch the screen every 30 minutes to enable it charge till 100%.
3rd, When it shows 100%, open the Battery Calibration apps and press "Battery Calibration"
4th, Reboot your phone and it should be alright
(You maybe asking why when the screen is on, it can be charged to 100%, I have no idea too
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Click the button below to download
DOWNLOAD
Or use the code
Those who had 1.1 or lower installed: you must uninstall before installing from the Market, or else it will say installation unsuccessful, package not signed.
*I personally tried this apps and it WORKS on Nexus S (i9023)
*I'm not responsible for any damage or losses of any kind caused by the use or misuse of the program! Neither mariosage!

Does this really worth the trouble? My phone charges up to 97% and the batt least long... On CM 7.0.3. Does it really increases the life time?

ElChe said:
Does this really worth the trouble? My phone charges up to 97% and the batt least long... On CM 7.0.3. Does it really increases the life time?
Click to expand...
Click to collapse
Do you need to do it every single charge? No, you dont. Would it be a good idea to do it the first time after flashing a new kernel or ROM? Sure.

I often delete battery stats in clockwork mod. Doesn't this just achieve the same thing, or is there a difference????

buachaille said:
I often delete battery stats in clockwork mod. Doesn't this just achieve the same thing, or is there a difference????
Click to expand...
Click to collapse
Well, that's good if you can delete battery stats.
This apps is for those who LAZY to delete it, instead, use a apps where "one-click" is able to achieve it without going to recovery mod

Something I don't understand about the Nexus S note:
if you can't charge your phone above 96% how could you let it charge until 100%?
If I let my phone charge during several hours, the percentage doesn't increase over 96-97% ...
So could you explain a little bit better.
Thanks a lot.

mousse04 said:
Something I don't understand about the Nexus S note:
if you can't charge your phone above 96% how could you let it charge until 100%?
If I let my phone charge during several hours, the percentage doesn't increase over 96-97% ...
So could you explain a little bit better.
Thanks a lot.
Click to expand...
Click to collapse
The weird thing is, when the screen in on, it can be charged to 100%
Ask me why? I have no idea too. Haha. You try it and you will realise it

I found out something more than weird ... if I let my phone charged with screen on, I can't go over 97% and the battery state oscillates between 96 and 97% !!!!!

mousse04 said:
I found out something more than weird ... if I let my phone charged with screen on, I can't go over 97% and the battery state oscillates between 96 and 97% !!!!!
Click to expand...
Click to collapse
For me charging with wifi tether turned on it will charge past 96%,without it on it stops charging screen on or not. I got to 98% this morning before leaving for work or I was gonna be late...
sent from the nexus of the 4g universe

mine tops out @ 98% like this.. cant get it to 100

With WiFi tether I can get to 100%. It may be something to do with not letting the phone go into a 'deep sleep'.
Sent from my Nexus S using XDA App

Hmmm... so I let it charge to 100%, then recovery, clear battery stats, reboot. And when it rebooted 95%. Afterwards I recharged my nexus back to 100% and now it seems to be charging fully everytime, or so it seems.... That's so weird, why a charging limit? Software Bug? Or am I just an idiot and it takes 5% battery life to reboot into recovery..
Edit: Now when I clear battery Stats I get no confirmation in Recovery, it just jumps back to menu..... Ill give this Battery Calibration App a try and see how it goes, cheers

I noticed this error, the inability to charge beyond 97 as well as showing decreased charge while plugged in, and left my nexus plugged in and off for 6 hours...
it booted and showed 95% charge, but reported full... Strange

kdepro said:
I noticed this error, the inability to charge beyond 97 as well as showing decreased charge while plugged in, and left my nexus plugged in and off for 6 hours...
it booted and showed 95% charge, but reported full... Strange
Click to expand...
Click to collapse
Please remember that for our nexus S, 99% and 100% can be consider full charge as to 4198-4200mv. So when it reach 99%, you can just unclick the "wait til 100%" and click "battery calibration"
hope that helps

de-evolution said:
Hmmm... so I let it charge to 100%, then recovery, clear battery stats, reboot. And when it rebooted 95%. Afterwards I recharged my nexus back to 100% and now it seems to be charging fully everytime, or so it seems.... That's so weird, why a charging limit? Software Bug? Or am I just an idiot and it takes 5% battery life to reboot into recovery..
Edit: Now when I clear battery Stats I get no confirmation in Recovery, it just jumps back to menu..... Ill give this Battery Calibration App a try and see how it goes, cheers
Click to expand...
Click to collapse
I noticed when I clear battery stats the very first time in recovery, it never show comfirmation. Probably due to some bugs I guess?
So I share this app as this app does the job

Also, a little tip.
Go to Settings>Applications>Development, and press stay awake.
Makes it easier I guess, then you don't have to monitor the phone.

[Q] Fast battery drain after gingerbread, anybody else experiencing it?

Well after many many tries with topogigi's rom i had a lot of battery drain, after a while i thought its probably ok cause its a gb leak, probably its not that bad.
well after few days using it i decided to change back to froyo so i changed to FR19 from modaco but i have the same drainage really really big and really fast, i use the wifi for like 2 or 3 minutes and it goes down like 5 %.
My question is this normal? is my battery broken?
i did the calibration couple of times, i checked the usage of battery, just the "0" and "1023" proccesses using a lot of battery, i also checked if it was some app runing in the background but nothing seem wrong.
can you guys help me with these issues do you think i should change the battery or just keep calibrating it.
BTW i also read about how the battery Mv should be at 4200Mv when its at 100% but mine is just at 4170Mv and suddenly goes down to 4112 or less.
I hope you can help cause this is really annoying me a lot.
Greetings

Did you do a factory reset after updating to gingerbread, you need to do a factory reset, after your battery should be fine, make sure to take your SD card out.
Sent from my LG-P999 using xda premium

by that you mean a complete wipe if it like i did it like many times but nothing today im gonna try charging my phone off and deleting the batterystats.bin by myself
btw i have froyo now its faster than gingerbread but anyways have a lot of battery drain

Gaku86 said:
by that you mean a complete wipe if it like i did it like many times but nothing today im gonna try charging my phone off and deleting the batterystats.bin by myself
btw i have froyo now its faster than gingerbread but anyways have a lot of battery drain
Click to expand...
Click to collapse
Gingerbread is not battery friendly. With tweaked ROMs and tweaked kernels you can have correct results (see my config below), but Froyo 10d is stilll a reference hard to reach...

Gaku86 said:
Well after many many tries with topogigi's rom i had a lot of battery drain, after a while i thought its probably ok cause its a gb leak, probably its not that bad.
well after few days using it i decided to change back to froyo so i changed to FR19 from modaco but i have the same drainage really really big and really fast, i use the wifi for like 2 or 3 minutes and it goes down like 5 %.
My question is this normal? is my battery broken?
i did the calibration couple of times, i checked the usage of battery, just the "0" and "1023" proccesses using a lot of battery, i also checked if it was some app runing in the background but nothing seem wrong.
can you guys help me with these issues do you think i should change the battery or just keep calibrating it.
BTW i also read about how the battery Mv should be at 4200Mv when its at 100% but mine is just at 4170Mv and suddenly goes down to 4112 or less.
I hope you can help cause this is really annoying me a lot.
Greetings
Click to expand...
Click to collapse
yes i did, check out my thread. hope it is helpful ^_^
http://forum.xda-developers.com/showthread.php?p=18601120#post18601120

Thank you both, what i did: factory reset. i didnt know that wiping and doing a factory reset was not the same thing, so now i fixed my issue i was using 150 mh per hour now after the factory reset is just 2mh sooo goood
i really appreciate your help guys was really really helpful.

Gaku86 said:
Thank you both, what i did: factory reset. i didnt know that wiping and doing a factory reset was not the same thing, so now i fixed my issue i was using 150 mh per hour now after the factory reset is just 2mh sooo goood
i really appreciate your help guys was really really helpful.
Click to expand...
Click to collapse
Glad to help ^_^

thanks a lot green arrow, well anyways after the factory reset it went up to 128mh got really freak out now went down to 59 mh.
my question is this normal or should be always at 2mh, btw im on 1% should i charge it or leave it die and charge it while it's off?

i had to hard reset it again the same problem again im getting really frustrating with this problem
sorry to bother you again guys, but i noticed something i dont know if this is right or not, but after i factory reset my phone it keep doing the same, i charge until 100% phone on, didnt charge until 100% just until 99% once i turn it off complete the charge, once i turn it back on showed me a 100% but i turn off again cause i change the RIL and now i notice sth strange right after i turn off it charge for like 3 more minutes wile was off even though it told me it was 100% can you guys help, should buy another battery did i screw my battery or is just bad calibrated
i seriously need help

Gaku86 said:
i had to hard reset it again the same problem again im getting really frustrating with this problem
sorry to bother you again guys, but i noticed something i dont know if this is right or not, but after i factory reset my phone it keep doing the same, i charge until 100% phone on, didnt charge until 100% just until 99% once i turn it off complete the charge, once i turn it back on showed me a 100% but i turn off again cause i change the RIL and now i notice sth strange right after i turn off it charge for like 3 more minutes wile was off even though it told me it was 100% can you guys help, should buy another battery did i screw my battery or is just bad calibrated
i seriously need help
Click to expand...
Click to collapse
this could be many diff things, what i would do is 1 of 3 things:
1- try to calibrate it again
2- try a new kernel (maybe an sbc kernel, it might work better for you)
3- maybe try to flash a new rom for a bit and see if the rom you are running at the moment just doesn't like your phone.
at the moment i am running the decks rom for gingerbread and svz 2.2.1 kernel, however i just like to test new things but what has worked the best for me is the godmode (V9) kernel. i stopped using it because he is no longer updating his kernels but with godmode kernel and cm7 my phone lasted me a total of 1 day and 6 hours on 1 charge.

well thanks a lot for the help green arrow, what i did know was i charge full on and off after that delete battery stats manually calibrate it with battery monitor widget then turn off charge a little bit again turn on delete battery stats again and reboot this worked for me from 9:30 pm to 8 am just wasted 8% sleeping but anyways i thought it was too much so i checked better battery stats so there is a process called nvrm daemon the weird thing is that i dont have an overclocked kernel and im not using daemon so i wonder what it is.
if you want i can attach a screencap so you can help a little bit with this oddly changes with my battery.
Another thing is during night there was some changes it went from 2mh to 60mh then it start going down until 10mh at 7:30 am, if you want i can add the history report from battery monitor widget.
And finally im using gr4 Modaco's with stock kernel. Btw i changed my RIL to the v20j version the one that came with the rom and it seem pretty good after 10 minutes it sticked to 2mh.
well im gonna take some screens and upload them for you.

Some screens so i can get some more help
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right after a call went down from 89% to 87%
This one is right after activating wifi
Processes from better battery stats
Partial wakelocks

Gaku86 said:
well thanks a lot for the help green arrow, what i did know was i charge full on and off after that delete battery stats manually calibrate it with battery monitor widget then turn off charge a little bit again turn on delete battery stats again and reboot this worked for me from 9:30 pm to 8 am just wasted 8% sleeping but anyways i thought it was too much so i checked better battery stats so there is a process called nvrm daemon the weird thing is that i dont have an overclocked kernel and im not using daemon so i wonder what it is.
if you want i can attach a screencap so you can help a little bit with this oddly changes with my battery.
Another thing is during night there was some changes it went from 2mh to 60mh then it start going down until 10mh at 7:30 am, if you want i can add the history report from battery monitor widget.
And finally im using gr4 Modaco's with stock kernel. Btw i changed my RIL to the v20j version the one that came with the rom and it seem pretty good after 10 minutes it sticked to 2mh.
well im gonna take some screens and upload them for you.
Click to expand...
Click to collapse
this may not be much help but, turn off your internet (3g/2g) and your wifi, and your 4g if you put it on, and your sync. let me know if you see some change. if you do then just turn on your internet when you need it but leave it off on a normal bases.

Huge Battery Drain ?? plz help, tried everything

Hello friends.
Using o2x from 2 weeks.
Tried lot of roms, all kernels etc.
but what i get average 1 day use of phone, 17 to 20 hrs (less 8 hrs of sleep then it comes to 9 to 12 hrs). with normal use.
1 hrs calls, 0.5 hrs data and remaining is here and there sneaking in phone.
i never used gps,wifi,bt etc, all are in off state.
.
now i m currently on cm7 kang by temasek with irnkernel.
still battery giving same draing.
draining 1% just in 3 to 5 mins when i m using phone (not on call or data).
and main point is i m on edge coverage, so no 2g use.
data is always off.
.
i dont know what eating my battery too much..
.
realy, i m getting upset.
i tried every kernel and every rom, did battery calibration etc.
.
Update : I forgot to mention i m using class 2, 16 gb micro cd card.
also i m using acer liquid metal's usb charger for charging.
will this affect on my battery ?
update : guys i want to mention one thing.
today i pissed of with this problem and thought it was battery problem.
so i planned to go customer care.
then turned back v20e which official 2.3 for india.
then i saw dramatic changes in my battery drain.
it was half as before, with stock thing, no apps installed, not rooted etc.
i m still monitoring my battery.
.
also one thing, is go launcher will be cause for this ?
cause when flashed with v20e. the widget show drain as around 130-150 mA.
then i installed go launcer ex, then drain was 250 mA.
.
what is ur normal drain when u r using phone ? (for those who r getting best battery life)
.
.
can anybody share his battery drain graph which taken by battery monitor widget ?
here are some screenshots :
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Tried wiping the battery?
Charge till 100% let it discharge till 0% . Charge fully without disturb.
With gods will your phone will be normal.
Mayb you keep flashing and flashing that the battery stats is confused
Sent from my Optimus 2X using Tapatalk

crankyboy said:
Tried wiping the battery?
Charge till 100% let it discharge till 0% . Charge fully without disturb.
With gods will your phone will be normal.
Mayb you keep flashing and flashing that the battery stats is confused
Sent from my Optimus 2X using Tapatalk
Click to expand...
Click to collapse
yes, I did it allready..

RohanAJoshi said:
yes, I did it allready..
Click to expand...
Click to collapse
I have a similar problem, but it's likely because of 3G. With V10F Froyo, the phone drained <1% per hour in stand by, with 3G on. With V20L, and CM7 (any version of them), my phones draines 3-5% per hour. Tried anything, any ROM/BB combination, returned phone to warranty, but nothing.

rottenpenguin said:
I have a similar problem, but it's likely because of 3G. With V10F Froyo, the phone drained <1% per hour in stand by, with 3G on. With V20L, and CM7 (any version of them), my phones draines 3-5% per hour. Tried anything, any ROM/BB combination, returned phone to warranty, but nothing.
Click to expand...
Click to collapse
but i m on edge.

I am on temasek 7.2.0 kang,stock kernel,824BB. I unplug phone @7.30AM and when i come home i still have 93%-92% battery. (wifi:cca.1/2h, 3g:cca.5h, brightnes:auto, BT:cca1/2h, call:cca.2min, SMS:cca.20/day).
So i dont know why u have so f***ed up battery.
Sry for my bad english

Rutifruti said:
I am on temasek 7.2.0 kang,stock kernel,824BB. I unplug phone @7.30AM and when i come home i still have 93%-92% battery. (wifi:cca.1/2h, 3g:cca.5h, brightnes:auto, BT:cca1/2h, call:cca.2min, SMS:cca.20/day).
So i dont know why u have so f***ed up battery.
Sry for my bad english
Click to expand...
Click to collapse
OMG u r god!
how the hell do you have such a battery life?! even I am on temasek's kang!! at avg with your kind of usage it will go for less than a day :/

same with me..
hardly a day..
is there any problem in indian phones ?

See that 'better battery stats' image you put up? See the drop down menu that says 'since unplugged'? Change that to 'partial wakelock' and get a picture of it to show us the result
Also, you seem to have a lot of battery apps on the go.. are they conflicting?

C0D3N1N3R said:
OMG u r god!
how the hell do you have such a battery life?! even I am on temasek's kang!! at avg with your kind of usage it will go for less than a day :/
Click to expand...
Click to collapse
i dont know

I had a problem with huge battery drain and the culprit was my sd card. I dont know why but it had problems scanning it so I think it got stuck in a scanning loop of some sort. When I removed it, all was fine.
Sent from my LG-P990 using xda premium

i m getting angry on my phone.
see guys, i slept over night with 100% battery, just wake up n saw it wa 99%.
then used phone for just 20 mins.
and now battery on 92%.
now tell me friends, what i need to do ?

Do you have apps like juice defender? Accuweather? Uninstall them. They are probably eating you battery without you seeing.
See your running application?
Sent from my Optimus 2X using Tapatalk

nope.
in provided ssi was using jucedefender.
later i removed it.
same drain still

Perhaps you need to calibrate your battery (using baterry calibration app) and wipe the battery stats (via cwm)
Sent from my Optimus 2X using Tapatalk

mateus78 said:
Perhaps you need to calibrate your battery (using baterry calibration app) and wipe the battery stats (via cwm)
Sent from my Optimus 2X using Tapatalk
Click to expand...
Click to collapse
i did it already.

My recommendation:
1. Flash vadonka's kernel (ironKrnL has good performance, but drains battery fast).
2. Remove widgets which keep accessing the net in background, stop background data over network (in settings)
3. Install AnTuTu battery saver and set battery saver level to level 2.
4. Remove SD card. Try to manage for a day without SD card. Set internal storage as SD card in CM settings.
5. End all background apps after using any app (use dr. battery saver or similar app to kill all apps).
6. Take any other precautions, such as lowering screen brightness, tick "use only 2G networks" option, dont allow automatic email syncing in background etc.
Try this for one day on a full battery and let us know the results. If it does not improve much, you probably have a defective battery. I also own this phone in India and my battery easily lasts 2 days on normal usage.

RohanAJoshi said:
i m getting angry on my phone.
see guys, i slept over night with 100% battery, just wake up n saw it wa 99%.
then used phone for just 20 mins.
and now battery on 92%.
now tell me friends, what i need to do ?
Click to expand...
Click to collapse
Thats normal i think. Get nearly the same results.

Try Rugglez suggestion.
Also check if your Baseband matches your RIL.(Download GetRil from Market)
And go into Settings --> Apps --> Running Apps and check if there are many Services running in the background.
Also you can try to install the Autostarts app, which lets you control which apps are allowed to open themselves in the background.

Update : I forgot to mention i m using class 2, 16 gb micro cd card.
also i m using acer liquid metal's usb charger for charging.
will this affect on my battery ?

[Guide] Calibrating your battery

Ok so I'm going to tell you how to calibrate your battery, this is advised every time you flash a new ROM, you're probably asking why yourself why you would do this...
Advantages: every time you flash a new ROM your system gets confused and can result in your battery stats being incorrect meaning your phone might believe it has 0% battery and shut down despite having power left, this will fix this and so will actually give you a longer battery life
What you need:
The ability to read, and either
Cwm or the app "Battery calibrator" from Google play (I recommend the app)
OK.. so first charge your phone to 100% battery then go to either cwm recovery mode or the app, on cwm go to advanced settings and delete battery stats, on "battery calibrator" simply click the calibrate button and this will reset your battery data...
After doing either of these methods you're done, its recommended to let your battery drain completely before charging again but not needed...
I have included a screenshot of the very easy to use battery callibrator app... (having a problem with upload ill try in next post)
---I've definitely noticed that my battery lasts longer especially at staying over 80% before it would drain from 100 to 80 in literally half an hour now each percentage is equal and drains alot slower---
IF THIS GUIDE HAS HELPED YOU DONT FORGET TO SAY THANKS
The usual "Xx James xX" only on mobile...
(Sent Via Xda Developers App)

There's no way to specifically see if your device needs calibrating which is why it's recommended after each flash, however if you believe your battery is draining quickly even while doing nothing on your device it's probably because you need to calibrate
Just uploaded the screenshot of "Battery calibrator app"
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The usual "Xx James xX" only on mobile...
(Sent Via Xda Developers App)

Xx James xX said:
Ok so I'm going to tell you how to calibrate your battery, this is advised every time you flash a new ROM, you're probably asking why yourself why you would do this...
Advantages: every time you flash a new ROM your system gets confused and can result in your battery stats being incorrect meaning your phone might believe it has 0% battery and shut down despite having power left, this will fix this and so will actually give you a longer battery life
What you need:
The ability to read, and either
Cwm or the app "Battery calibrator" from Google play (I recommend the app)
OK.. so first charge your phone to 100% battery then go to either cwm recovery mode or the app, on cwm go to advanced settings and delete battery stats, on "battery calibrator" simply click the calibrate button and this will reset your battery data...
After doing either of these methods you're done, its recommended to let your battery drain completely before charging again but not needed...
I have included a screenshot of the very easy to use battery callibrator app... (having a problem with upload ill try in next post)
---I've definitely noticed that my battery lasts longer especially at staying over 80% before it would drain from 100 to 80 in literally half an hour now each percentage is equal and drains alot slower---
IF THIS GUIDE HAS HELPED YOU DONT FORGET TO SAY THANKS
The usual "Xx James xX" only on mobile...
(Sent Via Xda Developers App)
Click to expand...
Click to collapse
Clearing battery life wont give you a longer battery life. It just corrects the battery reading. Thats about it.
Sent from GT-S5830i using Galaxy S4.

Androidnow said:
Clearing battery life wont give you a longer battery life. It just corrects the battery reading. Thats about it.
Sent from GT-S5830i using Galaxy S4.
Click to expand...
Click to collapse
+1
And other simpler way to calibrate is to reboot recovery - Go to advanced - Wipe battery stats.

When I clicked on the calibration button once it said calibrated....when I again clicked it prompted your phone is not rooted...I am running jellyblast rom....so device is definatly rooted....after some time it prompted this....moreover the app is not showing in superuser list....
Sent from my GT-S5830i using xda premium

Answers
The recovery method is in the guide, also this does extend your battery if your phone is switching off early because it believes you have no battery left when you do
Also to the guy who's having problems: that's normal after you click calibrate once you're done if you click it again you get that message
The usual "Xx James xX" only on mobile...
(Sent Via Xda Developers App)

Xx James xX said:
The recovery method is in the guide, also this does extend your battery if your phone is switching off early because it believes you have no battery left when you do
Also to the guy who's having problems: that's normal after you click calibrate once you're done if you click it again you get that message
The usual "Xx James xX" only on mobile...
(Sent Via Xda Developers App)
Click to expand...
Click to collapse
It says batterystats.bin not found when i pressed the button second time means the device is calibrated as it got deleted when I first pressed the calibration button.....right?
Sent from my GT-S5830i using xda premium

bounty hunter14 said:
It says batterystats.bin not found when i pressed the button second time means the device is calibrated as it got deleted when I first pressed the calibration button.....right?
Sent from my GT-S5830i using xda premium
Click to expand...
Click to collapse
Yes, once you clicked it it's done, and if you click it again that happens... It's all normal, the battery stats will be recreated when you run out of Battery which is why it's recommended to let it all run out
The usual "Xx James xX" only on mobile...
(Sent Via Xda Developers App)

Used my ACE without calibration (on Simplicity v3.5 Rom) - Phone was fully loaded, after around 10 min it was from 100% to ~90-85%.
This morning i calibrated and after ~10 min it was from 100% to 93% ... guess it helps?!

kewkie said:
Used my ACE without calibration (on Simplicity v3.5 Rom) - Phone was fully loaded, after around 10 min it was from 100% to ~90-85%.
This morning i calibrated and after ~10 min it was from 100% to 93% ... guess it helps?!
Click to expand...
Click to collapse
Yes it means it has calibrated your battery,
its giving a more accurate reading now,
P.S The only way this can help "Extend" your battery is if your phone was reading 0% and shutting down despite still having power left,
alot of people pming me asking how it extends your battery... So yes it can extend your battery.... sort of

Yeah, but i have to add:
I'm using "One power guard" atm - this app is really awesome and helps alot against battery draining - i like this, plus Supercharge, DOMscript and battery calibration - its really nice

kewkie said:
Yeah, but i have to add:
I'm using "One power guard" atm - this app is really awesome and helps alot against battery draining - i like this, plus Supercharge, DOMscript and battery calibration - its really nice
Click to expand...
Click to collapse
Yeah I've recently tested this, it even has an official review by XDA, but tbh it basically just changes your CPU parameters quickly (Several other apps can do this such as frills CPU meter app) and when certain conditions are met such as low battery, this app is by far the best of its kind (Fully customisable and autimated) but ... I don't really need it my phone lasts all day even when I'm gaming... I only lose 5-10% battery ovetnight
It does have a nice layout and good features graphs etc but... meh, my phones working good already
The usual "Xx James xX" only on mobile...
(Sent Via Xda Developers App)

[Q] Battery Drain

Yeah i know, the same old problem but bear with me guys.
So i use Carbon..latest version (11/19) and i've recently decided to try these 2 kernels: CroPol kernel and PA kernel by tenshi and so far i've noticed no change in battery drain...it drains VERY fast!
So my questions to you guys and i'm gonna number them so they are easier to follow:
1- Is there something wrong with Carbon these last several updates?
I've bought a new battery and nothing changed. Should i migrate to a different rom?
2- Which kernel is best suited for Carbon or for S3 mini in general? and can i undervolt it?
3- I'm a super heavy mobile data/ Wifi user so what's the best governor/schedule combo to use to save battery...i dont mind it being slow as long as it saves battery. I use Powersave/noop all the time but still no use.
Please help!! :crying:
Thank you very much.

same Problem :/
I got the same problem since using the new Carbon version in KK 4.4.4.
nothing helps until now.
what i tried so far:
- formattig everything in EXT4 instead of f2fs
- factory reset
- flashing Stock rom
- flashing cyanogenMod 11 from novafusion.
- using battery calibration
what i noticed in Carbon:
-taking pictures with flashlight were killing my phone, restart with 30% less battery power. this bug appeared when using f2fs formatting but not ext4.
what i noticed in cm11:
- after normal restart also 20% less battery power.
what i noticed in all roms i tried after the bug appeared:
- when battery has around 20% battery phone will just shutdown and restart with 1% battery :/
can anybody help ?

Same here with but with random boots! (see the thread)

H3llsing87 said:
I got the same problem since using the new Carbon version in KK 4.4.4.
nothing helps until now.
what i tried so far:
- formattig everything in EXT4 instead of f2fs
- factory reset
- flashing Stock rom
- flashing cyanogenMod 11 from novafusion.
- using battery calibration
what i noticed in Carbon:
-taking pictures with flashlight were killing my phone, restart with 30% less battery power. this bug appeared when using f2fs formatting but not ext4.
what i noticed in cm11:
- after normal restart also 20% less battery power.
what i noticed in all roms i tried after the bug appeared:
- when battery has around 20% battery phone will just shutdown and restart with 1% battery :/
can anybody help ?
Click to expand...
Click to collapse
Same here after using f2fs on AOSPA and CM11. Now I'm on EXT4 + Stock Rom and I've got 10-20-30% battery loss after reboot.
However, battery indicator is wrong, but battery will last as if the percentage were still as before the reboot.
Also getting huge "Android OS" battery drain with no explanation from BBS
There's really no way to revert battery fuel gauge accuracy to stock behaviour?

Today i noticed also the random reboots.
When the phone was charging over the day and i tried to open SMS or any application, it suddenly reboots with 20% less battery power.
i think this bug is caused of the f2fs patition. i will try to flash a pitfile and stock again. the last time i didnt use a pit file.
i will let you know what happend

H3llsing87 said:
Today i noticed also the random reboots.
When the phone was charging over the day and i tried to open SMS or any application, it suddenly reboots with 20% less battery power.
i think this bug is caused of the f2fs patition. i will try to flash a pitfile and stock again. the last time i didnt use a pit file.
i will let you know what happend
Click to expand...
Click to collapse
I was going to try that too, let's hope that it works :fingers-crossed:

H3llsing87 said:
Today i noticed also the random reboots.
When the phone was charging over the day and i tried to open SMS or any application, it suddenly reboots with 20% less battery power.
i think this bug is caused of the f2fs patition. i will try to flash a pitfile and stock again. the last time i didnt use a pit file.
i will let you know what happend
Click to expand...
Click to collapse
this has most probably nothing to do with F2FS or any file system. i am using ext4 and i have the same issue.

Flashed stock rom with .pit file and nothing changed
Also I'm sure this has nothing to do with battery health, since battery lasts the same as before
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h4wkst3p said:
Flashed stock rom with .pit file and nothing changed
Also I'm sure this has nothing to do with battery health, since battery lasts the same as before
Click to expand...
Click to collapse
hopefully tomorrow i am getting my new battery and i'll see if it is a physical battery problem (mine is a year old). because on slimkat, carbon and cyanogenmod there is this problem (and stock rom as you have shown here). if this ain't a physical battery problem, may god help us (i'll be forced to buy a new device)

wtx1033 said:
hopefully tomorrow i am getting my new battery and i'll see if it is a physical battery problem (mine is a year old). because on slimkat, carbon and cyanogenmod there is this problem (and stock rom as you have shown here). if this ain't a physical battery problem, may god help us (i'll be forced to buy a new device)
Click to expand...
Click to collapse
Mine is one year old too, as well as the ones from other s3 mini users here on xda that have had this problem... let me know if it's worth it! I'm really getting crazy on this one...

nothing changed with pit file flash
i noticed:
no installing of new apps (SD-Card interactions) except of wakelock detector
just using WIFI, G3 SMS and Phone
was the behaviour normal! around 10% battery loss in ~5 hours
But when i pressed restart to reboot the phone!
it Crashes continuesly and battery jumped to 20%.
so the phone is doing something in the bootup process, which has a huge battery drain!
ill try today evening to flash previous CM with f2fs. I don't think that the battery is damaged. otherwise the batteryloss would be consistent.

Ok guys I'm not taking credits of this method to see if something's wrong with your battery but this is it
Take out your battery and place it ona flat surface, then spin it horizontally on both sides, if on one of the two sides it spins and doesn't get stopped by friction then the problem is that the battery is going to inflate and this means the battery is going to die
This is my case, so I'm gonna buy another original battery and let you know
If it isn't the problem for you, then it's a software problem with partitions

h4wkst3p said:
Ok guys I'm not taking credits of this method to see if something's wrong with your battery but this is it
Take out your battery and place it ona flat surface, then spin it horizontally on both sides, if on one of the two sides it spins and doesn't get stopped by friction then the problem is that the battery is going to inflate and this means the battery is going to die
This is my case, so I'm gonna buy another original battery and let you know
If it isn't the problem for you, then it's a software problem with partitions
Click to expand...
Click to collapse
oh yeah. my old battery was definitely swollen. not much swelling can be seen without taking the battery out but one can see it clearly on a flat surface. it spins right round

with the new battery
it's still early to tell whether it was definitely a battery problem or not for me, but it surely looks that way. here are my stats after somewhat heavy* first usage:
so, do the "battery spin test" on a table like @h4wkst3p suggested. if it spins, no good i am afraid
*: by heavy i mean setting up the system after a clean flash. y'know installing all the apps etc.
i offline charged the new battery to 95% and the images show the remaining amount.

wtx1033 said:
it's still early to tell whether it was definitely a battery problem or not for me, but it surely looks that way. here are my stats after somewhat heavy* first usage:
so, do the "battery spin test" on a table like @h4wkst3p suggested. if it spins, no good i am afraid
*: by heavy i mean setting up the system after a clean flash. y'know installing all the apps etc.
i offline charged the new battery to 95% and the images show the remaining amount.
Click to expand...
Click to collapse
this looks like it's totally fixed omg
The reboot with drop should be because of reboot after installing apps (generating dalvik etc), right?

h4wkst3p said:
this looks like it's totally fixed omg
The reboot with drop should be because of reboot after installing apps (generating dalvik etc), right?
Click to expand...
Click to collapse
actually, no it was after i installed all the apps i then installed adaway & xprivacy— and both need a reboot.
as i said, i first topped the battery till ~95% by offline charging. plugged out the USB cable. booted into recovery, wiped and flashed. then booted into clean slimkat and start using it. all on battery power! :laugh:

wtx1033 said:
actually, no it was after i installed all the apps i then installed adaway and xprivacy and both need a reboot.
as i said, i first topped the batery ~95%. wen to recovery, wiped and flashed. booted into clean slimkat and star using it. all on battery power! :laugh:
Click to expand...
Click to collapse
This is actually awesome! , when I'll get my new original battery I'll let you know if this fixed my device too :fingers-crossed:
I totally forgot how much amazing this device's battery was before this problem

alright you got me!
I've tried everything! flashing stock,pit,cm10.2, cm11 newer revision, deleting batterystats.bin and dockbatterystats.bin. reloading several times, but only got depressions.
Maybe there was a strange bug during the first flash progress, which destroyed the battery ?
Because we flashed all the same CM11 based version, and it killed the batteries, which was running excellent before :/
i'll order a new one now =) did you buy the original one? or another with more mA ?

H3llsing87 said:
alright you got me!
I've tried everything! flashing stock,pit,cm10.2, cm11 newer revision, deleting batterystats.bin and dockbatterystats.bin. reloading several times, but only got depressions.
Maybe there was a strange bug during the first flash progress, which destroyed the battery ?
Because we flashed all the same CM11 based version, and it killed the batteries, which was running excellent before :/
i'll order a new one now =) did you buy the original one? or another with more mA ?
Click to expand...
Click to collapse
original one...and after the second charge it holds on standby quite nicely

I finally made it to get the original Samsung battery for Christmas from Amazon
This is my partial usage with a reboot at 65%
After the reboot it got to 66%
This is great, so it definitely was the old bad battery