Easiest way i found to calibrate my battery

**mpjoe2000** · 06-22-2011, 12:33 AM

All you need to do is to use Battery Calibration [APP] by marosige version 1.2 and do the following:

1) Charge your battery full 4400mV (you must wait until your battery gets 4400mV otherwise will not get good results)
2) Run the app and click "Battery Calibration" (One time please!).
3) Unplug the phone from the wall charger.
4) Enjoy your calibration!

Notes: To get 4400mV you will have to wait some minutes til get there because the phone at 4300mV it shows full charge so you can leave it charging like 20-40 more minutes)

Suggestion from developer marosige:
"It's suggested, but not necessary, to let the phone fully discharge after calibration, then charged to 100% without break."

App link: [APP] Battery Calibration - EASIEST WAY! - Version 1.2 (10th April, 2011) - xda-developers
Also you can get it from the market updated if this post gets to old.

**inguclaecheverria** · 06-22-2011, 12:37 AM

Good job my friend but will this app no afect the battery quality? My battery jobs 1 hour nothing more!

**mpjoe2000** · 06-22-2011, 01:29 AM

You don't need to calibrate your battery every day, only when is necessary

**deathbearer** · 06-22-2011, 10:35 AM

mods plz make a sticky

**podtalje** · 06-24-2011, 11:52 AM

This procedure is nice, but it is not optimal.

To calibrate the battery, you need to fully charge the battery and recreate the battery stats.

When phone has booted the operating system, by default the battery diver will not fully load the battery because of safety precautions.
If you turn the phone off and charge the battery, you will see that battery can accept some additional charge.

There is now modification of battery driver (by qbanin), which should allow to charge the battery to full also when operating system is running, but maybe not everybody is using it.

There is also a condition if battery temperature is to high, it will also stop charging.

So I still think the best way to calibrate the battery is to turn the phone off and charge it to full and after that delete battery stats.

It is a simple procedure and you usually have to do it very rarely, so this should not be a problem.

**mpjoe2000** · 07-03-2011, 06:44 PM

Originally Posted by podtalje

This procedure is nice, but it is not optimal.

To calibrate the battery, you need to fully charge the battery and recreate the battery stats.

When phone has booted the operating system, by default the battery diver will not fully load the battery because of safety precautions.
If you turn the phone off and charge the battery, you will see that battery can accept some additional charge.

There is now modification of battery driver (by qbanin), which should allow to charge the battery to full also when operating system is running, but maybe not everybody is using it.

There is also a condition if battery temperature is to high, it will also stop charging.

So I still think the best way to calibrate the battery is to turn the phone off and charge it to full and after that delete battery stats.

It is a simple procedure and you usually have to do it very rarely, so this should not be a problem.

Everything you said makes sense, but i'm not the developer i would like you to post it on developer's thread in xda forums.

Till now, this method have worked for me perfectly on froyo. I HAVE READ ON DEV'S THREAD SOMEONE REPORT THAT IS NOT WORKING GOOD ON GINGERBREAD.

**DocSmurf** · 08-07-2011, 07:04 PM

I have tried all the above methods and they just lead to new problems. I'm just now noticing what I think could be wrong. Because now my phone does NOT create. A battery stats.bin file after calibration so right now my phones running for fifeteen twenty minutes tops. So if some one could give me a copy of their batterystats.bin for a Spica so I can charge

**mpjoe2000** · 08-08-2011, 06:25 AM

Originally Posted by DocSmurf

I have tried all the above methods and they just lead to new problems. I'm just now noticing what I think could be wrong. Because now my phone does NOT create. A battery stats.bin file after calibration so right now my phones running for fifeteen twenty minutes tops. So if some one could give me a copy of their batterystats.bin for a Spica so I can charge

I recommend you to reflash original Eclair Firmware and update to 2.2 again to fix your problem.

**raGE** · 09-13-2011, 05:34 PM

My spica's battery suck ass from some time to now.. Its like having 20% battery after "fully charged", after using it for a lil while, it abruptly shuts down.

I tryed something: I took battery out, left it like that some time (vertically facing down, IDK maybe gravity helps) and then i put it back in and it just turned on, loaded sys showed launcher, it was on for about 5 min until it shutted again.. The thing is, I've been doing the same since friday and im still discharging it AND STILL POWERS ON :S

I guess if i fully discharge it, i will be able to fully charge it again?? Maybe? I will let u know.

P.D.: What I did notice, is that, after doing this, the battery wich was a lil inflated, its now almost flat wich is a great :P

**Kefir** · 09-28-2011, 10:34 AM

No need to format battery this way. It wont change anything. New Li-Ion batteries just become worser in time so you just should charge them when they are almost fully used. For good battery optimalization you should disable hardware and software components that eat up the battery and you don't use at the moment. After good optimalization you don't have to recharge battery so often, ergo it will last longer.