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[Q]How to calibrate battery

Ok guys.. Im new to sensation and to all battery calibration stuff..
Can you please explain to me how to properly calibrate battery ?
I have flashed custom rom (insert coin) and custom kernel (bricked) and now i need battery calibration..
I have 0% of battery on phone at the moment (phone is dead off), and what to do now?
Please tell me ...
thanks in advance
Laynee1

Charge too 100% once it's full turn off and charge till green light on.
Boot up power down and charge till green again. Boot into cwm delete battery stats on advanced and reboot. The then just use your phone for a few full cycles. Don't expect it to be better instantly could take days
Sent from my Sensation XE using xda premium

http://forum.xda-developers.com/showthread.php?t=1316046
Sent from my Sensation XE using xda premium

whynot66 said:
Charge too 100% once it's full turn off and charge till green light on.
Boot up power down and charge till green again. Boot into cwm delete battery stats on advanced and reboot. The then just use your phone for a few full cycles. Don't expect it to be better instantly could take days
Sent from my Sensation XE using xda premium
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Thanks for swift respond
Is that same way like some 1 mentioning in some thread, app for battery calibration ? Will i get same results with calibration app ?

The app just wipes the stats for you
Sent from my Sensation XE using xda premium

Thanks for all answers..
I want to know this because i read somewhere here that when i calibrate my battery, it will all be normal..
And battery drain widget will show correct values..
p.s. And ive read somewhere to use Battery Monitor Widget, because only that battery current drain monitor shows correct values for Sensation..
Is that right ?
What program to use ?
Thanks again
Laynee1

Press the thanks button then lol
Bmw (battery monitor widget) isn't totally accurate either. To get most accurate reading tick mA corrections in bmw settings. I'm still pretty sure it's off tho, try some of the tips in the thread I posted, my battery is going OK
Sent from my Sensation XE using xda premium

Thanks button hit on every of your post here
Cheers mate

I'm not sure if you've heard of this method but I'm in the process of working on this one as I just flashed a new rom onto my phone.
Charge it up to 100%, use it until it drops to 15% and then fully charge it again. Once it's 100% again, use it and use it past 15% and then fully charge it again. Right now I'm at the finishing part of charging my phone cause I just used it past 15%. Will tell you if I do see any improvements or significant changes.
Probably going to try out whynot's post on battery calibration as well.

Wiping battery stats?

Does wiping battery stats too often due to flashing alot of roms reduce stock battery performance ?? Being curious..
Sent from my HTC Sensation Z710e using xda premium

No. The battery stats file is only used for determining battery drain. It does not have an effect on battery life one way or the other.

dallashigh said:
No. The battery stats file is only used for determining battery drain. It does not have an effect on battery life one way or the other.
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Thanks and while were at it dont wanna open a new thread is there any script for disabling the charging led ?? It gets very annoying at night in the bedroom :/
I remember i had such a script on my old x10 ... Thanks in advance
Sent from my HTC Sensation Z710e using xda premium

wiping battery stats does nothing to your battery and actually the battery stats are wiped automatically every time u fully charge ur phone:
Dianne Hackborn said:
Deleting it is not going to do anything to make your more device more fantastic and wonderful... well, unless you have some deep hatred for seeing anything shown in the battery usage UI. And anyway, it is reset every time you unplug from power with a relatively full charge (thus why the battery usage UI data resets at that point), so this would be a much easier way to make it go away.
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source: Dianne Hackborn - Android Framework Engineer on Google+

PuscH said:
wiping battery stats does nothing to your battery and actually the battery stats are wiped automatically every time u fully charge ur phone:
source: Dianne Hackborn - Android Framework Engineer on Google+
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If the battery stats get wiped every time it hit 100 how one can keep the same battery life daily ?
Sent from my HTC Sensation Z710e using xda premium

The only way to really preserve a battery is to fully discharge, fully charge. Mine was going great until I slacked on it. I started only charging a little, fully charging from 40%, etc etc. Now, I'm on 100% for two hours. Then I drop fast to about 80%. Then I float around 80 to 60% for a few hours but once I go below 60%, boom, 20%. The last 20% go quick too.
Don't get me wrong, my battery life is basically the same, but now it's really inaccurate. If you start to feel this, the best thing you can do is fully charge, fully discharge. Do that a lot, over and over. It might help correct it, might not.
But to reiterate, no, wiping battery stats does nothing.

sshede said:
The only way to really preserve a battery is to fully discharge, fully charge. Mine was going great until I slacked on it. I started only charging a little, fully charging from 40%, etc etc. Now, I'm on 100% for two hours. Then I drop fast to about 80%. Then I float around 80 to 60% for a few hours but once I go below 60%, boom, 20%. The last 20% go quick too.
Don't get me wrong, my battery life is basically the same, but now it's really inaccurate. If you start to feel this, the best thing you can do is fully charge, fully discharge. Do that a lot, over and over. It might help correct it, might not.
But to reiterate, no, wiping battery stats does nothing.
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Okay thanks alot but can a custom rom really make that much difference on battery life's performance ?? On my old x10 no matter how many scripts tweaks for batttery they would add i would always get same battery life is it the same here ?
Sent from my HTC Sensation Z710e using xda premium

Battery issue's ....!!!!!!

Okay my phone said I had 34 percent battery I rebooted my phone now its reading 67 percent wth how do I fix this..
Sent from my HTC Sensation 4G

Use battery calibrator fron Play. Run it 100% and press "calibrate" in the app. Can also wipe battery stats as well.

Sindroid said:
Use battery calibrator fron Play. Run it 100% and press "calibrate" in the app. Can also wipe battery stats as well.
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Who is it made by I see a lot of results when I search that.
Sent from my HTC Sensation 4G

Any of them will do. They all delete the same file to calibrate.
Once you calbrate, let the battery dtain all the way to power off for the first cycle.
Also, its not unusual for the battery percentage to jump alot on reboot. It will drop down ro the correct amount pretty quickly.
Sent from a rebel ship by storing the message in an R2 unit. (Help me, XDA. You're my only hope)

Skipjacks said:
Any of them will do. They all delete the same file to calibrate.
Once you calbrate, let the battery dtain all the way to power off for the first cycle.
Also, its not unusual for the battery percentage to jump alot on reboot. It will drop down ro the correct amount pretty quickly.
Sent from a rebel ship by storing the message in an R2 unit. (Help me, XDA. You're my only hope)
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Thx for that info
Sent from my HTC Sensation 4G

It could be the first signs of a dying battery as well.
Sent from my HTC Sensation Z710e using XDA

You do not need to drain your battery completely down (until the phone powers off) to get an accurate calibration. Anything below about 15% will be good enough.
Although it is rare, letting a li-ion battery drain completely to zero can sometimes cause it to fail. There are sensors in these batteries that makes sure that they don't ever drain completely (even when we see zero, there is still some power left - similar to when your car gas light comes on but you still have a few gallons of 'reserve fuel) Sometimes these sensors can fail. If that happens, you have a bad battery.
Also, after calibrating give it a few full cycles to gain top accuracy. The jump you see after a reboot is normal, though it shouldn't be as severe as you mentioned.

Hi my friend,
Some say "battery calibration" app works some says it doesn't, don't really know but "wipe battery datas" in recovery does the same.
this happens when you flash different roms and some roms does not include battery calibration scrips. My rom does and i never have this issue, works very well.
this issue resolves by itself when wiping data and giving it 2 or 3 complete cycles.
Be patient then , all will comme back to normal.
I also saw a new app called "battery repair", i just bought it on market, but can not tell the results now because too early. i took it because it repair yes but most of all give you more time of use ...
cheers

Battery problem

I have a serious problem 2days back I flashed sense build 4 and by battery diacharged within 4hrs I thought its battery problem and purchased new battery and again it discharged in 4hrs only Soviet flashed cm10 betav3.2 and even thn it lasted only 5.5hrs today I flashed cm9 beta11 with kernel 2.... and I lost 35% in 100 min is this normal oR mobile is having any problem help please
Sent from my HTC Explorer A310e using xda premium

+1 for the similar problem.... Kindly help me too.... I was about to post this question and i saw your post... Devs plz help us...
Heavy battery discharge + unable to charge battery till 100%, stuck at 83%... Done everything possible.. Using FlyROM v2 Kernel 3.0..

vishuhtc- You can try installing "better battery stats"(check out xda), or "GSam battery monitor", you will see what is killing it, if you don't get your answer with this apps check this thread http://forum.xda-developers.com/showthread.php?t=2093542 . Also if you are using super wipe, to flash roms, try flashing without it, or with it, but manually delete bootloader data, cos it doesn't do it automatikly
khanjan2khan- check out with the second app what voltage gets to your battery, it should be something like 4.000V or a little bit more, if it goes to that, you should also calibrate it or just delete battery stats from recovery, if it doesn't get to that............. try with another charger, or with a service center.

shortyoko said:
khanjan2khan- check out with the second app what voltage gets to your battery, it should be something like 4.000V or a little bit more, if it goes to that, you should also calibrate it or just delete battery stats from recovery, if it doesn't get to that............. try with another charger, or with a service center.
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Thanx for quick reply... I reached 95% and voltage showed 4102V... Already calibrated a dozen times.... n as well using diffirent charger htc-to-blackberry-to-sony:crying::crying:

About Samsung Service Center ( ... )

Ok on start I am sorry guys for my language. I am in UK only one year so I need to learn a lot
10 min a go I back from SSC because I have problems with battery/ charging and foulty speaker
Italian Job 1.0.0 - big battery drain and battery go dawn after restart by 30-60%!
XXMC8 - no battery drain but battery go dawn after restart by 30-60%!
Stock UK GB XXLK7 -no battery drain but battery go dawn after restart by 30-60%!
So I bought new original samsung battery 1500mAh - no changes
So I bought batttery 3500mAh with special cover - no vissible battery drain, this battery can handle my phone by ~ 20 hours of playing AVI movie, 720p in loop in MX Player so very good score but battery go dawn after restart by 30-60%!
All battery was tested in my Ace 2 and in my girlfriend Ace 2 (she have fully working phone with no problems) and she have good scores on all batteries but best is on 3500mAh with special cover ( above x2 than standard)
So i went to SSC and they: (stock GB, 0 flash counters)
- take my phone without documents on free guarantees (only box)
- I must come back for that phone in this friday
This above is for + but:
- they **** that work because I have in my ducuments copy a lot of bugs! (street , town)
- they checked my speaker in noisy room (it did not take nearly as booming)
- for those guys after restart when phone loses 30% battery power is normal!
So I go after tomorrow for my phone and we will see ( They will make updates to JB! and they change speaker/ charging module)
Photo for proof attached
If they dont repair my phone I do not buy samsung phone NEVER AGAIN!
EDIT: 3 hours waiting for a response about taking my phone!
EDIT 2: that 3500mAh battery must be loaded 8 hours to get 100% form 0%. (standard charger )

I really want to know what the whole battery dropping after restart thing is about, forever happening to me and sometimes the battery completely dies. It was the same on my original Ace S5830 I got a few years ago.
If you find out, please tell! haha.

After receiving the reply I upload it here

Have nfc version and ni problems with battery with much using and sometimes little bit playing i rech two days

I dont have problem with battery (any) but with phone hardware

I must agree with you guys regarding battery drain. It's suspicios and I am also aware of a fast battery drain from 100% to 65% in just a couple of hours, or very fast after a restart.
Maybe this is the way android should work. I was thinking there was a problem with my phone, but seeing similar behaviour with yours, it must be something related to the android system.

I'm on JB me1 and i haven't this battery dran problem. After the night i just lose 3-7% battery

When I have 100% and I off my phone and turn on battery go down to 50-60% immediately in one secund! It must by hardware foult...this is not normaly working android, for me

Really i don't have sth like that so that isn't real android

Shadowcareful said:
Really i don't have sth like that so that isn't real android
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What?

I said i think it's not normal that you have this battery drain

Yeah I know ...

michal89chz said:
Yeah I know ...
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well i dont have that
sometimes when i reboot my phone it goes from 45% to 47%
and some times from 45% to 44%

This is ok

I thought that is not really a battery draining. But it just about battery calibrating. Your phone need to calibrate the battery. Thats the problem.

riyosakura said:
I thought that is not really a battery draining. But it just about battery calibrating. Your phone need to calibrate the battery. Thats the problem.
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lol actually "calibrating" is just a myth. It doesn't really do anything.
Sent from my GT-I8160 using xda app-developers app

Dr01nE said:
lol actually "calibrating" is just a myth. It doesn't really do anything.
Sent from my GT-I8160 using xda app-developers app
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Really??
However, I've never done any battery calibrating..but I read in some thread, need to calibrate the battery, so there will be no battery misdisplay on the battery icon...logically, I thought, our devices will some time miscommunicate with the battery because there are no battery parameter to make the system understand how much the battery stored....
But I don't know if it just a myth...

riyosakura said:
Really??
However, I've never done any battery calibrating..but I read in some thread, need to calibrate the battery, so there will be no battery misdisplay on the battery icon...logically, I thought, our devices will some time miscommunicate with the battery because there are no battery parameter to make the system understand how much the battery stored....
But I don't know if it just a myth...
Click to expand...
Click to collapse
its normal to see 99% when unplugging from charger, 3%-10%(Max) drop on rebooting. Battery is usually inaccurate after charging, what I do is plug it in then reboot. then it displays the right value after unplugging, usually my battery status is really inaccurate but it returns to normal afterwards (it'll show charging icon even when unplugged and charge to 100 then stops and returns to real level). I don't believe in this calibrations and have found enough proof its useless, I think most xda users agree too. Try searching some threads.
Sent from my GT-I8160 using xda app-developers app

riyosakura said:
Really??
However, I've never done any battery calibrating..but I read in some thread, need to calibrate the battery, so there will be no battery misdisplay on the battery icon...logically, I thought, our devices will some time miscommunicate with the battery because there are no battery parameter to make the system understand how much the battery stored....
But I don't know if it just a myth...
Click to expand...
Click to collapse
Dr01nE said:
its normal to see 99% when unplugging from charger, 3%-10%(Max) drop on rebooting. Battery is usually inaccurate after charging, what I do is plug it in then reboot. then it displays the right value after unplugging, usually my battery status is really inaccurate but it returns to normal afterwards (it'll show charging icon even when unplugged and charge to 100 then stops and returns to real level). I don't believe in this calibrations and have found enough proof its useless, I think most xda users agree too. Try searching some threads.
Sent from my GT-I8160 using xda app-developers app
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Click to collapse
Actually you don't even have to search xda, there you go fellows: https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT If this isn't enough then I don't know what is.

My phone back to me from SSC with xxlk7, so no JB...(after 24hours in service)
If someone want to know how good is 3500mAh battery please go to my battery thread in general section.