Database Develop

Looking for a battery recalibrate hack...

Hiya,
I was poking around the forums a couple days ago and I stumbled across a hack that recalibrates the phone's battery STATUS, it doesn't do anything about helping battery life or anything.
Last night when I was about to go to sleep I had a battery life of 32%. I plugged in the phone, and immediately restarted it. When it booted up again, I kid you not, it had 63% battery life. I turned off the phone while plugged in to see the battery icon, the one that shows.the battery status while its charging with the phone off, and indeed it showed around 63,65%.
Anyone know where I could find this? I think its buried somewhere on the forums.
Sent from my SAMSUNG-SGH-I897 using XDA App

locsplitter said:
Hiya,
I was poking around the forums a couple days ago and I stumbled across a hack that recalibrates the phone's battery STATUS, it doesn't do anything about helping battery life or anything.
Last night when I was about to go to sleep I had a battery life of 32%. I plugged in the phone, and immediately restarted it. When it booted up again, I kid you not, it had 63% battery life. I turned off the phone while plugged in to see the battery icon, the one that shows.the battery status while its charging with the phone off, and indeed it showed around 63,65%.
Anyone know where I could find this? I think its buried somewhere on the forums.
Click to expand...
Click to collapse
THIS WILL HELP RECALIBRATE YOUR BATTERY SO YOU DON'T HAVE THAT ISSUE
1.Charge till full when powered on
2.power off
3.charge till full again
3.boot into recovery(adb reboot recovery or Power off the phone and then hold the volume up + Volume down + the power key. When it goes black the 2nd time release the power button and keep holding the volume buttons.)
3.wipe stats by going into Clockworkmod recovery -> advanced -> wipe battery stats.
4.boot and continue to use as normal

Heres 1 from another board:
""So, you are having trouble with your battery seemingly draining too quickly, especially after having flashed many ROMs/Kernels/etc...
It is possible that the problem (or part of the problem) is not necessarily the phone using too much power. If this is the case for you, you should see some results from doing the following:
1. Connect the phone to the charger with the phone powered on, and allow the phone to charge until it shows 100%
2. Disconnect the phone from the charger, and power it off.
3. Reconnect the phone to the charger with the phone powered off, and allow the phone to charge until the battery indicator shows 100% (you can use vol-up/vol-down to make the indicator come back up when the screen goes to sleep).
4. Disconnect the phone from the charger and power it on.
5. Once the phone is powered completely on, power it off again and reconnect it to the charger until the battery indicator shows 100%.
6. Disconnect the phone, power it on, and use it.
You should only need to use this sequence one time.
Hope this helps.-Joeybear23"""

Help! Battery won't charge past 70%

I didn't notice this problem until the day before. My battery status is displaying 70% when the phone consider it to be fully charged.
I've drain it to 5% before charging overnight, but the status still display 70%.
I am not sure if this is a problem with my phone or the battery. Any help would be nice.

Try this but you need a rooted phone for it: http://forum.xda-developers.com/showthread.php?t=722862

it is just a status bar bug
the battery is probably fine
use Gauge Battery Widget instead to see the real stuff
http://forum.xda-developers.com/showpost.php?p=8124361&postcount=46

Thank you for the link!! I am trying that now.
This is not the status bar problem as I've test out some of the widget.
The phone would only charge up to 70% no matter how long it will remain on the charge.
Going into the battery info in setting also indicated it is at 70%.
At this moment I am draining my phone with max brightness and everything turn on.
Start off at 70% at 9:30am and now (2:00pm) is at 3%
So I guess I should try to charge it full with the phone off

Did you recently flash firmware to your phone? Make sure your battery is fully charged whenever you flash firmware because it will clear the battery data. It seems to me all you need is a battery calibration. There is a procedure posted somewhere. IIRC, you need charg up the battery to 100%, power down, charge 100%, power up again and repeat a few times.

I had the same problem.
After a day of charging the battery fully charged notification appears. As soon as I unplug it the battery immediatly jumps to 70%.
Is there a way to fix this? Perhaps reflashing when the phone is fully charged (which is currently 70%).
I tried the rm /system/data/batterystats.bin but did not remedy this problem.

Same problem here. It has been this way for a month. Tried calibration, different batteries, different ROMS....everything.

who can help?

using alternative battery widget is not an option if battery stats from settings also displays 70% max
this is very unusual problem - i would suggest:
1) install https://market.android.com/details?id=com.nema.batterycalibration (phone needs root)
2) drain battery to 0%
3) take out battery for 5-7 minutes
4) put it back and turn on and drain again
5) repeat untill phone will not turn on
6) while still off charge phone to 100%
7) disconnect charger power on the phone, let it boot and use the battery calibration app
8) now let the phone discharge with normal usage untill it powers off (do not reboot, power off during discharge)
9) put the phone to charger, turn it on and let it charge to 100% wo reboots/poweroffs
should be fine

let me try tomorrow..I have similar issue..
Sent from my GT-I9000 using XDA App

Today, over night charge from 70% to 79%

have you followed my tutorial from this post -> LINK
also can you dial *#*#4636#*#* pick battery information and make a screenshot, then another after a minute or two ...

I made this thread over in the captivate forums, it explains the issues in detail
http://forum.xda-developers.com/showthread.php?t=1279925

What rom/kernal are you guys using?...
Sent from my MB860 using xda premium

concentrate on points 2 to 5 of my 'tutorial' and for god sake use only original charger
and yes, what kernel

Hey Somator, I am trying your tutorial now. I drained my battery to 0% on my phone. I then would boot it up, it would register 1%, then turn off.
I then put my battery in a coworkers phone today and it read 40% when it previously read 0% on mine. So I depleted the battery on his phone, reinserted it into mine, and I am now currently charging it to 100% while it is off. I will let you know how the rest turns out.
I have tried calibration procedures on stock rom, MIUI, CM7, I9000, and I897 Roms.

drain the battery on his if you can and then charge on yours
after that wipe battery stats with https://market.android.com/details?id=com.nema.batterycalibration
//edit: oh you did exact that - well should be fine from now - still wierd why it just 'decalibrated' by so much in the first place

the original charge has helped me, everything is fine

In case someone is looking for an answer here (considering this is the thread that comes at the top of Google's search results), this is what worked for me:
1. Take the battery out.
2. Plug phone into wall charger.
3. Put the battery back in the phone.
4. Let it charge for an hour. Mine said 5% the entire time it was plugged.
5. Remove phone from charge. Remove battery. Put them all together again.
I hope this works for others.

Verizon note 4
$omator said:
using alternative battery widget is not an option if battery stats from settings also displays 70% max
this is very unusual problem - i would suggest:
1) install https://market.android.com/details?id=com.nema.batterycalibration (phone needs root)
2) drain battery to 0%
3) take out battery for 5-7 minutes
4) put it back and turn on and drain again
5) repeat untill phone will not turn on
6) while still off charge phone to 100%
7) disconnect charger power on the phone, let it boot and use the battery calibration app
8) now let the phone discharge with normal usage untill it powers off (do not reboot, power off during discharge)
9) put the phone to charger, turn it on and let it charge to 100% wo reboots/poweroffs
should be fine
Click to expand...
Click to collapse
I have Verizon note 4 that can not be rooted, any other options?

[Q] Tegrak 100% battery charge?

Hey all,
Noob question. I recently went to JVP (doc kitchen) and tried out multiple kernels (speedmod, fugu, tegrak). I only noticed this issue after going to tegrak's kernel so suspect it's kernel related.
The issue I'm having/suspect is that after "100% charge" the battery would start to be consumed (even if it is plugged in). This is most noticeable if I'm at my desk at work all day (phone on charge) or when I leave my phone charging overnight. When I disconnect to go home/go to work, I can see the battery is at 85% or similar (as if the phone wasn't on charge). If I was to disconnect it as soon as it hit "100%" it'll be at 96/97/98% as expected.
I'm not an expert and logcat confuses the heck out of me to be honest, but would anyone know what strings I can search for to determine if the phone "stops charging" when it hits 100%? I'd prefer it to be on a trickle charge (ie keep the battery at 96/97/98%) so that when I disconnect, I have a near full battery.
Is this a kernel issue? or a battery level calibration issue?
TIA

cheddarchi said:
Hey all,
Noob question. I recently went to JVP (doc kitchen) and tried out multiple kernels (speedmod, fugu, tegrak). I only noticed this issue after going to tegrak's kernel so suspect it's kernel related.
The issue I'm having/suspect is that after "100% charge" the battery would start to be consumed (even if it is plugged in). This is most noticeable if I'm at my desk at work all day (phone on charge) or when I leave my phone charging overnight. When I disconnect to go home/go to work, I can see the battery is at 85% or similar (as if the phone wasn't on charge). If I was to disconnect it as soon as it hit "100%" it'll be at 96/97/98% as expected.
I'm not an expert and logcat confuses the heck out of me to be honest, but would anyone know what strings I can search for to determine if the phone "stops charging" when it hits 100%? I'd prefer it to be on a trickle charge (ie keep the battery at 96/97/98%) so that when I disconnect, I have a near full battery.
Is this a kernel issue? or a battery level calibration issue?
TIA
Click to expand...
Click to collapse
Please do this procedure and see... once u finish ur 2 or 3 cycle u'll get the result...
- Charge your battery full, bump charge to get the highest level possible ; note that it's not a big deal if it shows 97% when you unplug after bump-charging
- Drain your battery to 0% until it shuts down by itself (without plugging the charger or connecting the phone to a pc)
- Wait 2 minutes and reboot the phone to ensure the battery is completely flat (it might reboot fully, half way, not at all, don't worry) until it dies again
- Remove the battery and wait 2 minutes
- Replace the battery and plug the charger without switching the phone on until it shows 100%
- When phone shows 100%, boot in recovery (volume up + home + power) and go to > Advanced > Wipe Battery Stats > Confirm (move up/down using the volume keys)
- Reboot the phone and unplug the charger when the "battery full notification" comes (wait for the notification before you unplug the charger)
- Now use your phone until the battery is flat again and charge full (no need to have it turned off, unless you it to charge faster). Repeat 2 or 3 times and your battery will be calibrated
- Only wipe battery stats once, run a few cycles of full charge / discharge and after that just use your phone as normal (i.e. no need to deplete / charge fully anymore).

[Q] Battery problem?

A strange thing happened to me: last night I turned off the phone with about 60% of charge remaining, this morning I turn it on and I find 13%, after a reboot it gave me 50% ...
What can be the cause?

I found that here:http://forum.xda-developers.com/showthread.php?t=755903&page=33
You can try it :
This is the procedure that works for me:
The following steps should significantly extend the battery life on your phone:
1. Let the battery drain close to empty (5% or less).
2. Connect the phone to the charger (AC or USB, USB is better) while powered on and allow the phone to charge until the notification LED is green, indicating the device is fully charged and untill the voltage is at least 4187mV. A higher voltage like 4192mV or more is even better. Use a tool like Overcharged or Battery Indicator to monitor this. Note that a green notification LED does not automatically mean that the voltage is good too.
A higher voltage means in practice that it will take longer to discharge, a lower voltage means that the battery will discharge a lot quicker! The difference can be quite significant!
3. Disconnect the phone from the charger and power it off.
4. Reconnect the phone to the charger while powered off and allow the phone to charge until the notification LED is green. The notification LED may turn green immediately. Leave it on the charger for another hour.
5. Disconnect the phone from the charger and power it on.
6. Once the phone is powered on completely (has restarted fully) wait 2 minutes and power it off again.
7. Reconnect the phone to the charger while powered off and allow the phone to charge until the notification LED is green. The notification LED may turn green immediately. Leave it on the charger for another hour.
8. Leave the phone on the charger and reboot into the ClockWorkMod recovery menu and wipe the battery stats via -> Advanced -> Wipe battery stats.
9. Disconnect the phone from the charger, restart the phone and start using it as normal.
From then on always let the battery drain close to empty (5% or less) as often as possible and then charge untill the voltage is at least 4187mV. A higher voltage like 4192mV or more is even better.
Normally you will have to do this only once. However, on all Android ROMs, if you flash a ROM while charging or during the first boot screen on, first boot mucks up the levels Android thinks the phone is at, i.e. Android will think you’re at 100% when maybe you’re only 90% or whatever. So in theory you will need to repeat this every time you flash a ROM while charging!
Better is to make sure the battery is charged before you flash a ROM and just remove the USB/charge cable before you flash a ROM. Put it back in (if you must) after the first boot screen (when the custom screen or whatever shows).

Thank you, I'll try it

Battery change confusion

I have an extra battery that sits in a dock do that I can insert a fully charged battery when the need arises.
However, after switching the indicator isn't topped up, it is only on a half charge level, what do I need to do in order to have a correct indicator?
Sent from my GT-N7000 using Tapatalk 2

WHEN MUST CALIBRATE OUR BATTERY?
1) Always after installing a cooked rom or after the flash of an unofficial firmware.
2) If, after uploading, maybe for a whole night (being disconnected from the charger) our device, we find ourselves with a & abnormal, such as just 99% or so ...
3) If you disconnect the charger from our% battery drops quickly even in standby mode (make sure however that this is due to other causes such .. so many app / widgets running in the background without stopping) ........ - Method 1 - 1. Take the phone to fully discharge. 2. Try to restart, if this happens, do it again to shut down for lack of battery. 3. Load the phone from off preferably a whole night or in any case a long period. 4. Turn on the phone with the charger plugged in and then peel it off. N.B.Non requires the Root. .. - METHOD 2 - 1. Completely drain the phone. 2. Get into recovery mode (if you can not do for lack of battery, connect the phone to the charger). 3. Follow the path to Advanced -> Wipe battery stats and confirm. 4. Go back and restart (or follow the path Go Back -> Reboot system now). 5. Allow to fully charge the phone up to 100% (preferably overnight or at least a long period) and then fully discharge it until it shuts off., Without connecting it to the PC to its charger during this period.NB.no requires ClockworkMod recovery & Root have installed.... METHOD-3-1. Charge the phone to 100% (with the phone turned on) preferably overnight or at least a long period. 2. Leave the phone connected to the charger and turn it off. 3. Let it load again for 10/15 minutes (again without disconnecting from the charger) in practice you will see the full charge or written% to 100%. 4. Entering Recovery Mode (always without disconnecting from the charger) and follow the path Advanced -> Wipe battery stats and confirm. 5. Restart (or follow the path Go Back -> Reboot system now). 6. Wait until the entire system is charged, then unplug it from the charger. NB ClockworkMod recovery & Root have installed.... - Method 4 - 1. Download the app from the market called Battery Calibration https://play.google.com/store/apps/details?id=com.nema.batterycalibration 2. Charge your phone turned on preferably overnight or at least a long period. 3. When the phone is fully charged and then to 100%, unplug, open the program and click Battery Calibration. 4. Now you can disconnect the phone. 5. And 'suggested by the creator of the app (but not necessary) to leave the phone will download after recalibrating the battery, then just leave it off and recharge it fully up to 100% with no breaks ... N.B.tu ave permission to install Root.... - Method 5 to 1. Turn off the phone. 2. To fully charge the phone, preferably a whole night or in any case a long period. 3. When the battery is fully charged and scored 100% unplug your phone and remove the battery. 4. Wait for 90 seconds exactly (really must be precise, wait exactly 90 seconds.) 6. Replace the battery and turn the phone. NBNon are required they will ClockworkMod Root recovery..... - METHOD 6 - 1. Charge the phone from off to 100%. 2. When the display reads 100% off the plug and start it directly into recovery mode 3. In recovery mode follow the path Advanced -> Wipe battery stats and confirm. 4. Use the phone until it shut off by only 5. Restart (or follow the path Go Back -> Reboot system now). 6. Upload it altogether and just use NBBisogna ClockworkMod recovery & Root have installed.... IMPORTANT 'recommended (but not required) to run the Wipe Battery 2/3 times in a row, this is to ensure
perfect calibration and true ...

What do you do when you just want to switch from a depleted battery to one with a full charge? Why doesn't the Note recognize that there is a new battery with a full charge in it?

It turns out that this problem is caused by the phone not recognizing any battery present if the battery has too little of a charge left on it, so the phone doesn’t attempt to charge the battery (because it doesn’t think that there is a battery there) which means that the battery stays dead and the phone continues not recognizing it / not charging. There is actually nothing wrong with the battery – the problem is a poorly designed charging circuit inside the phone.

Does this mean that even if the newly inserted battery shows something like 15% it will in reality get usage like a fully charged battery?
Sent from my Transformer TF101 using Tapatalk 2