yashsingh1/xdaforums huggingface dataset:
[Android Apps and Games] trainriderben:
I am having this same problem - battery is draining like crazy.

Here is what I have:

Phone: Samsung Vibrant

Running: Toxic Baby

Kernal: Overstock 2.6.32.9

__________________________

Here is what I did to calibrate:

1. Charge to 100

2. Press "Calibrate"

3. Fully drain, until phone wouldnt turn on

4. Recharge to 100

5. Presto - Craptastic battery

I can watch the battery drop down while sitting idle.

I charged fully this morning and am almost down to dead, I will try charge fully again.

Does any one have any helpful insight - am I headed in the right direction?
[Android Apps and Games] marosige:
Why did you calibrate if your battery life was fine? :P

Ok let me explain the calibration a little deeper. I don't really know what's in this file but it helps the phone to use the battery better. When you flash a new ROM, it will drain the battery faster because the informations in the bin file are from the older (previous) ROM. Some ROMs deletes the batterystats.bin during the flashing process. But if your phone is not fully charged it will be miscalibrated. Thats why after flashing a new ROM we have to (should) delete this file while our phone is fully charged. So with my app you can delete this file easily when the battery is full. After that we drain the battery to 0% then charge it to 100% because our batterystats.bin file is empty and we have to fill it up with informations about our battery usage. After that the file isn't complete yet so it takes some days to see the difference between the old (deleted) bin file and the current (new) one.

If your battery life got worse after the calibration don't worry. It will take some days to see the difference, and got a better battery life. Or the same. But it shouldn't be worse.
[Android Apps and Games] Realalist:
I downloaded it last night and charged my phone to 100%, pressed calibrate, unplugged the charger now I'm at 8% waiting for it to die. I have one question. Should I wait for it to run itself off then turn it back on turn the app on and recharge to 100% without break? Or keep turning it on until the battery is totally dead, to the point that the phone won't come on anymore then plug in the charger? Which one should I do?
[Android Apps and Games] marosige:
Let the phone turn itself off when the battery is empty. Put it to the charger. You can turn it on while charging and you don't have to run my app while charging only if you want to see the battery percentege while charging.
[Android Apps and Games] Realalist:
Thnaks you for the quick reply. I let it die, on it's on, now it's charging. Thanks allot.
[Android Apps and Games] trainriderben:
Any support on this?
[Android Apps and Games] marosige:
Wait 2 or 3 days. If the battery still draining fast, try to recalibrate.
[Android Apps and Games] migamax:
hi can u provide direct link for the app ?
[Android Apps and Games] marosige:
What's the problem with the Android Market? But sorry, no.
[Android Apps and Games] bobbyphoenix:
What about if we use this on the stock battery, but then get a higher capacity battery. Should we calibrate again for the higher capacity battery?
[Android Apps and Games] marosige:
Yes
[Android Apps and Games] fallengt:
My battery discharge at ~3,4v. Is there any big different between discharge at 3(or 3,2v) and 3,4? I mean how much juice left from 3,4v->3v ?

CMIIW from my understanding Lithium-Ion battery drain relatively fast when it drop down to 3,4v->3v so it doesn't matter.
[Android Apps and Games] Popol640001:
Hi !

Tested on nand rom (MDJ's CyanogenMod7 2.6).

Original phone battery was 4191mV @ 100% of charge yesterday night.

By now, so just in standbye all the night (about 11 hours later), battery shows 4096mV @ 91%.

I will let it die gently and do a full charge without interrupt to see if she likes that :)

Great application to know more about our batteries.

Best regards
[Android Apps and Games] alphabets:
i have 1.1 installed from the apk that was posted in this thread. when i try to update or install 1.2 from the market it fails and says "package was notr signed correctly". do i have to uninstall 1.1 to download 1.2 from the market or is something just wrong with the app in the market?
[Android Apps and Games] bobbyphoenix:
Yes. It's on the very first page kind of hidden in post #1. "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."
[Android Apps and Games] dbzers:
Question- My I'm noticing that people's batteries tend to die when the voltage goes down to around 3.2 however, mine dies around 3.7v, is there anyway to keep it going to 3.2? I've been calibrating, but I always seem to get the same results, at first, when i deleted the batterystats.bin my battery takes forever to die, battery left says it takes about 19 to 20 hours before it dies, the second i let the battery drain, recharge it non stop, my battery only last 10 hours....it seems that if i ever want to get more than 10 hours i'd have to delete the batterystats.bin file everytime...do i just have a faulty battery o.o or is it something else that is draining my battery?
[Android Apps and Games] wIIse:
Good app, have been using this for a couple of weeks now! After installing a ROM, best tool needed for calibrating your battery!

Thanks
[Android Apps and Games] ERamseth:
Does the battery stats file get backed up and restored in the nandroid process? And if so, is that file still useful when you restore?
[Android Apps and Games] dexxter_sat:
My case is even more extreme. Battery lasts at normal usage (everything turned off) max 6 hours. Observing the voltage I saw that I get 0% battery at more than 3600mV!!!

What can I do???

Now fully chargeing after calibration...
[Android Apps and Games] didlyi:
thank you..just trying now
[Android Apps and Games] wielku:
yes it's working i did it on my cyan7 and now battery 2 days long still working awesome
[Android Apps and Games] DarkVoidification:
I did all the steps described but there is one problem. On the first charge after the calibration, my phone lasted almost 3 days, making me quite impressed. However, on the subsequent charges, they last only one day, exactly like the battery life before using this app. Is there a problem with my phone?

I'm running Cognition v4.3 on my Samsung Captivate.
[Android Apps and Games] martin255:
Very good, clean, easy-to-use app. It boosted my batt life on CM7 pretty well.

Recommended! :D
[Android Apps and Games] DroidApprentice:
I really hope I did this right. The first few times I charged the meter never got to 100% although Samsung (Epic 4G) and Android reported a fully charged batt.

The readous were 96-97% at "full" charge, and about 4130mV.

So what I did was unplug and replug, and managed to get to 100% in the 4180s mV range, low 4190s at best with some retries. (I think it's been said that 4200 mV is the theoretical limit for fully charged.)

I closely visually monitored it during one last bump and when I saw 100% and about 4192 I hit the calibrate button and unplugged. Immediately before allowing another superuser permission for the app though, it fell another few mV.

How did I do? I guess only time will tell. Thanks for the app!
[Android Apps and Games] bobbyphoenix:
Sounds right to me. :-)
[Android Apps and Games] BoscoTM:
God I love this utility! I'm getting a 25h per charge! Once again, thanks!
[Android Apps and Games] Anon9mouz:
I think ima try this way dude from acs said to turn off phone charge to 100 % and when u see it's full go strait to recovery and delete battery stats so ima see what works better or something
[Android Apps and Games] Vlad_z:
Just for experiment, try to shut down your phone before recharging... see if it will be any differ.

PS: don't do calibration or manually delete BatteryStats.bin file.
[Android Apps and Games] marosige:
If your phone turned off how do you know that it's full? The indicator LED turns green at 90%.
[Android Apps and Games] Jayfunk:
FOllowing almost all the suggestions in this thread, I found out that there's no significant change from my battery's life...I've done a couple of calibration every 3-4 days of obervation and my last calibration is the worst which drained my battery for only 8hrs..this should have been a great app though. :D
[Android Apps and Games] lukappaseidue:
.... reached 100%

... uplugged battery charger ...

used for 28 hours with

3.58 hours of calls

15 sms

browsing

3g always on

beautifull widget with autoupdate every 3 hour

meteo ecc.ecc

WORK GREATTTT ;)
[Android Apps and Games] bobbyphoenix:
If you don't see a change then your calibration was not off to begin with. Only calibrate once as instructed, and wait about four days. If no improvement then you didn't need to do it, but it won't hurt the phone that you did.
[Android Apps and Games] bobbyphoenix:
When the phone is off and charging you can press the power button quickly, and it will display the charge %. If it it at 100% the general rule I follow is to let charge for another hour since Moto phones increase in 5% steps, so if it is showing 100% it could be anywhere from 95% to 100%, but waiting an hour will make sure it is at true 100%.
[Android Apps and Games] docflower:
If one were to drain the battery should the mV be at 0? I am getting about 3100mV with 12% bat left. Seems like it should be lower (mV) than what it is. Does this seem right?

Thanks
[Android Apps and Games] jasoraso:
That's about right (although it doesn't seem it). The Lion battery can't get too low, or else it won't be able to recharge
[Android Apps and Games] grillchips:
Worth a try, thanks!
[Android Apps and Games] gordies.swc:
I just seen this &I want to do it...finally a way to try &save battery life.but Im not sure how I go about doing this?? Anyone?
[Android Apps and Games] Dan330:
dont over think about it.. it is very simple...

if you have root. go to market.. install the app. follow the very easy direction.
[Android Apps and Games] gpz1100:
Why?

I was going to ask what does this app do differently than just deleting the batterystats.bin file manually?
[Android Apps and Games] bobbyphoenix:
It does the same thing, but just by an automatic command, so you don't have to manually type commands. Just use the app. Don't delete the file more than once by using the app, manually, and by some other method. After using the app (and following instructions for charging), it takes a couple of days to get full stats. If you keep deleting the file, it will just make things worse.
[Android Apps and Games] gpz1100:
Understood. I'd use root explorer to delete it. I believe it's in /data/system/batterystats.bin .

I suppose for those not comfortable with adb/shell environments, this app is a suitable alternative. Thanks for clarifying the specifics of what it does.
[Android Apps and Games] kristian93:
Will my battery be calibrated with Hard Reset, because I'm not rooted and I don't want to root my phone
[Android Apps and Games] valve timing:
Here is a screen shot I am on my second charge after calibrating

Can someone help me with this issue . Something is just draining my battery when my phone is asleep
[Android Apps and Games] Neffstarr:
gonna try it on my Vibrant 3g
[Android Apps and Games] bobbyphoenix:
When mine has Android OS as the #1 use I found it was because I calibrated the compass. After a reboot it stopped. Also what is your Battery Manager profile? I'm using "Nighttime saver" and it seems to really help during off hours from 10PM to 5AM.
[Android Apps and Games] valve timing:
i have a rooted my touch 4g running faux low voltage kernel and orange glacier rom.. i dont think i have a compass app on my phone bro
[Android Apps and Games] marosige:
Read this. I have a Desire HD and this is an Desire HD manual but I think it will work on your phone too, just don't flash any radio you fund there.

For step 1.2 use my app.

Btw 40% / ~10 hours is not too bad. It's 4%/h witch is high if your phone is in standby all the time, but if you use it a little, it is normal (on a Desire HD).
[Android Apps and Games] mrmarco:
Hello, i tried the app, but i have not too much success. And I'd like to know if, and when it is necessary to reboot the phone. I charge the battery at max, push calibrate, wait untill is zero, only then rebooted and charged to 100%....have I to reboot or not?. Many thanks
[Android Apps and Games] slackwaresupport:
what about on a 4500mh battery?
[Android Apps and Games] Villis87:
Is it possible to add qvga support?
[Android Apps and Games] Dawg Fan:
I have a cheap Chinese Android Tablet. The battery seems to drain fast, so I thought I would try your app. After charging, where it shows "Current Charge", mine says "100%, 0mV". Is that right? It shouldn't be 0, should it? The specs on my tablet say the battery is: Rechargeable Li-Polyer :2600MAh,7.4V.
[Android Apps and Games] marosige:
Reboot is not necessary.

I will release a new version soon, but I have 3 big exams next week and I learned for that in the last month. I have many ideas, but I don't have time right now.

I will start writing version 1.3 next thursday. I'm not sure yet that how I'm gonna release it. A new version every day with minor changes or I will release a big update when I'm ready with my ideas.

The sensor must be wrong.
[Android Apps and Games] gpz1100:
Assuming a hard reset clears the /data partition, an accurate assumption indeed would be that the battery stats are cleared this way. Doing a hard reset to clear this file seems a bit extreme.
[Android Apps and Games] junixquiaoit:
is it normal if there's a message "root your phone"

it already ask root permission but still asking it.

i'm on 2.1 rom.
[Android Apps and Games] aroutis:
Start by using spareparts in order to identify the program that drains your battery.
[Android Apps and Games] valve timing:
The dreaded suspend process ive called htc tmobile customer support and I sent a logcat to faux123 in hopes of getting this issue resolved
[Android Apps and Games] fermalobos:
This app, worked just fine in my droid, battery would only last llike 8-10 hours now it goes 16 and still has a 30% left. Thank you very much
[Android Apps and Games] aftab565:
Exactly does what it says .
[Android Apps and Games] valve timing:
Flashed to a new rom issue resolved
[Android Apps and Games] xpaa:
hey!!!

I have charged phone to 100% (untill beep sound)

then pressed button Calibrate, and removed charger...

before let the phone die accidentally I just restarted phone at 60%

afterwards, drained it at 0% until it automatically turned off..

Now charging to 100%

I noticed that phone is taking half time to charge (92% in 2 hours and still charging)... (previously it takes around 6-7 hours to full charge) and now it is only two hours...

Backup is nice...

but is it harm as i restarted phone before completely drained???? do I need to recalibrate???

Phone : Xperia x10 2.1 stock
[Android Apps and Games] marosige:
Read comment #13
[Android Apps and Games] Kalavere:
I boot into Recovery to flash ROMs anyway, so it's no hardship to reset batt stats.
[Android Apps and Games] Toxin715:
Good job on the app
[Android Apps and Games] natious:
edit: nvm read another post
[Android Apps and Games] DJGurth:
I get parse error with my hero running 2.1
[Android Apps and Games] Skiddywinks:
Isn't letting your battery drain to 0% a seriously bad idea for its health?
[Android Apps and Games] marosige:
I usually flash ROMs on the go, so my battery is not on 100%.

Some roms wipe battery stats during the flash, but if your battery isn't fully charged, your phone will be miscalibrated. Then it's much easier to run my app after chargeing the phone than rebooting to recovery again.
[Android Apps and Games] marosige:
It would be, but the Android system doesn't let the phone fully discharge the battery. It will turn off before the battery would hurt.
[Android Apps and Games] lilhaiti:
Correct me if I'm wrong...this requires S-OFF to work?
[Android Apps and Games] :
RE: 3), 4) instuction' steps

marosige

Looks interesting, but a question relating steps 3) & 4):

...pnone charged to 100%

3) Unplug your phone

4) Click "Battery calibration".

Isn't correct start "calibration process" while plugging ON?
[Android Apps and Games] 4eyeco:
error parsing package

se x10 stock 2.1
[Android Apps and Games] marosige:
It's on API level 8 so only Android 2.2+ devices can run it. I never thought that 2000+ people will download this THANKS!

I will relase an update today to run on android 2.1 devices too! :)
[Android Apps and Games] :
I don't know if it is coincidence or not, but since i've recharged my Galaxy S to 100% then hit "calibrate", my battery as been lasting 2 and half days, and with some great use.
[Android Apps and Games] Johev:
Would this work on an HD2 NAND version?
[Android Apps and Games] T0bear:
Thanks for the app. Works fine on my SGS with JQ3/JPY/JS2. :)
[Android Apps and Games] v941726:
ahh. devs collaborating. its refreshing
[Android Apps and Games] DigitalDreamer:
It says that it needs to be done after flashing a new rom, right?

But what if I used it now, after my rom is "old" enough?
[Android Apps and Games] GlossGhost:
I'll ask the same :confused:
[Android Apps and Games] marosige:
You can use this anytime. It's not necesarry to use it right after flashing. Even if you use a stock, rooted phone you can calibrate the baytery if you think that your battery time is bad and maybe a calibration would help.
[Android Apps and Games] GlossGhost:
I think it'll be good to add this info to the first post ;).
[Android Apps and Games] marosige:
If your battery life got worse, try to recalibrate. If it's good now, you don't have to recalibrate .
[Android Apps and Games] RaymondPJR:
Battery Calibration

Wow, 6-7 hours to charge seems like way too much! Sounds like you really needed this app.:)
[Android Apps and Games] bobbyphoenix:
I know the feeling. Well mine actually goes to 100%, but the Mv never gets to 4200. It's stuck at 4160 at the highest. Even charging for 12 hours, or trying a bump charge. It charges to 4150 quick, and then like another two hours to get to 4160. I thought it was the battery, so I got a new one, and it only goes to 4160 too. I've used this app on the original one, and now last night for the new one, so we will see. I do get great life out of it, but still, strange.
[Android Apps and Games] alessiolupo:
tank you for your app i have resoult a problem whitout going to recovery...

tank you
[Android Apps and Games] RaymondPJR:
Battery Calibration

Ahhh, I got ya'. There was a post some pages back with a link to another thread that explained why that sometimes happens. It has something to do with extending the battery life (cycles) so it's not really a bad thing.:)
[Android Apps and Games] santu71182:
0% at 3450 mV?

First of all thank you for this nice little utility.

I have started using this and here is what I notice:

1. Phone gets to 100% @ 4190 mV which is decent I guess.

2. But by the time I reach 8% battery left voltage is still 3500 mV and battery dies at 3450mV. Isn't something spooky here?

I read in several forums, and everyone is of the opinion that operating range should be 3100 mv - 4200 mv (0-100 %).

Is there a way to let me OS know that 0% should be at 3100mv and not at 3450 mV. I feel I am loosing 20% moolah out of the battery :-)
[Android Apps and Games] imakul8:
I have this same situation. I feel cheated of my juice.
[Android Apps and Games] superzuan:
can it do any harm after not doing it when you have flasht a new rom. i already run android about 4 days , can i still calibrate it or is that a problem ? my battery was charged about 70% now i connecting it to my charger and it's on 36% ? why? almost 4000Mv
[Android Apps and Games] marosige:
You can do it any time. But if you can't see any changes, please don't calibrate it 3 times a day and wait for the changes. You can see the changes after 2-3 days (charging cycles). And if your battery wasn't miscalibrated so mutch you will not see a big change.
[Android Apps and Games] mochamoo:
I am seeing this kind of behavior too when swapping batteries. it will max out at the same mv. Just doesn't seem likely. is there a way to make out forget what the max is and start over with new battery?
[Android Apps and Games] sergmeister:
nice easy utility thanks
[Android Apps and Games] munky-head:
Installed, waiting for a full charge. Thanks for the app!
[Android Apps and Games] MobilNerd:
Thank you. Battery lasts alot longer after doing this on my Desire with CM7 :)
[Android Apps and Games] turbonegro:
Is it recommended to do this every time I flash a new ROM or what?
[Android Apps and Games] hengkah:
I am using an Xperida Arc. I let my phone charge to 100%. However, the voltage never goes above 4000mV. It hovers around 3900mV.

I calibrated the battery and disconnected the USB charger. The battery life seems reasonable, but the phone shuts down at about 35%.

Can you advise?
[Android Apps and Games] sheinafae:
Thanks a bunch, this is great!
[Android Apps and Games] Shoulon:
Worked flawlessly on Epic 4G!! Thank you sir!
[Android Apps and Games] lamecake:
Very nice tool, simple and working like a charm! Thanks! :)
[Android Apps and Games] misha0209:
hi,

thanks for the app!

just wondering, would it be possible to automate it? like a checkbox saying to autocalibrate each time the battery is fully charged? or autocalibrate after battery was fully charged 10 times? or something of the sort?

my current rom is just stupid when it comes to battery, the only time i get an accurate reading is just after i use your app to calibrate.

if this was suggested by someone else, then sorry i did not read through all the pages...
[Android Apps and Games] Shoulon:
The battery readings don't work like that. U dont just wipe battery stats then its perfect. It becomes acurate over 1-2days after reset.
[Android Apps and Games] bookerok:
n1ce utility, must have, thx!
[Android Apps and Games] misha0209:
well it actually takes 2 days for a full discharge, and if i recharge to 100% and let it run normally i can get a 40% after a 1~1 and a half hour phone call. but if i plug my phone in it jumps to 60 or 70%.

other scenarios i've had after calibrate>full discharge>full recharge are going through one day (2 hours of music, ~30 min worth of phone calls and some browsing) with phone saying it has 10% juice. that is obviously a fake reading. if i would have plugged it in in the morning it would have jumped to 40-50% for sure.

is that how it is suppose to be?
[Android Apps and Games] Shoulon:
Your battery's got issue's.... that reminded me of mines before I learned of cmw wipe battery stat.

Here's how I used the app..

1. Erased battery status.

2. Charged til says full

3. Turn phone off then charged again til "full"

4. Turn on and charged til "full" then erased battery stat.

5. Works like a charm.
[Android Apps and Games] misha0209:
ok, thanks, will go through all steps, but first, as i am a noob, i will need to ask what is cmw wipe battery stat? command line, other app, or the function of this app?

Thank you!
[Android Apps and Games] marosige:
Yes it is.
[Android Apps and Games] revcp:
I assume he meant cwm. Clockwork Mod Recovery.
[Android Apps and Games] Realalist:
Well I've tried this a few times and it has not given me any improvements. And I can't turn my phone off and charge while off so I don't know if that is the issue or not.
[Android Apps and Games] wikchi:
thanks worked perfectly on my x5
[Android Apps and Games] b3ndech0:
is recalibrating the batery also nessesary when i upgrade within the same rom? like from cm7 nightly 21 to 22?
[Android Apps and Games] revcp:
Yes, it is necessary.
[Android Apps and Games] Wildchld:
I do the same also after a new rom install. Under heavy use I can get 7-8 hrs
[Android Apps and Games] :
I have used this twice so far and I cannot say for sure that my battery lasts longer because of it. I am pretty skilled when it comes to the android OS at this point (thank you XDA community) and after some testing I am not seeing the results that others are saying they are having....