How to reset my battery stats?

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droidzer1

Senior Member
Oct 28, 2013
543
168
Wiping battery stats in no, way, shape, or form affects battery indication. Please do some fact-checking regarding the subject matter at hand rather than perpetuating gross misinformation. The notion that wiping battery stats does anything even remotely useful was clearly and concisely debunked long ago.

The only actual valid posts in this thread have been from mr_clean5953, WastedJoker, and zelendel.The OP itself is riddled with misinformation and following the piss-poor advice given therein will shorten your battry's life.

The same holds true for the advice for 4-6 deep discharge cycles prior to first use. It is totally unnecessary and contrary to what was stated, is not recommended by manufacturers of lithium-based batteries. The individual posting that may have been confused by the fact that it is a recommended practice for nickel-based batteries. Li-ion and lithium polymer batteries see no benefit from "priming" prior to first use. The singular effect of following that misguided advice is a shortened serviceable life of the battery.

I'm pretty well versed in Li-Ion batteries and am glad you posted the above info. I fully agree on all points above and any suggestions of running a Lithium Ion all the way down will only shorten it's life.

I know this is an old thread but just found a recent post here in another subforum about clearing battery stats as I'm having some weirdness with one Galaxy and it's batteries. I guess it can't hurt to at least just clear the battery stats without doing any of the other stuff?
 
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ajac

Senior Member
Nov 1, 2007
301
18
it saddens me people still believe this myth. Been saying this for years it doesnt change anything.
 

lostinworld

New member
Oct 19, 2015
1
0
Hello,
I am stuck in with some issue here.

I am using karbonn A1+ (2.3.6version)
I used the calibration app.
It said "calibration done"

But now after fully discharging my phone don't recognize any charger, nor my battery is charging?

Tried many times.
What to do now??

While battery is charging via battery charger still...
 

dskiller

Senior Member
im having a problem as it seems my phone doesnt know what level the batter at.
phone is samsung galaxy exhibit running 4.4.4
before that I had 5.1.1
and stock rom is 4.2.1 or was it 4.1.2. cant remember.

anyway I had to flash back to the 4.4.4 due a system crash problem related to an app.

and I do a full complete wipe so there is nothing left.

now when ever I reboot the phone it. says what ever it wants to say about the battery level.

I charge it and it says it charged at 97% but I wait and it goes to 100%

then I reboot and it sometimes says 30% or 60%

and now I been trying to drain the battery and phones been at 2% for two hours.

wtf is going on....

Im going to have to leave my phone running all day without charge to try and drain the battery.

its actually been awhile sense the phone died.
 
Last edited:

Engagen

New member
Jan 7, 2017
1
1
People who say deleting battery stats don't change anything, should look for some facts.

Let's say, I have new phone and battery quickly goes down to 1% and what a mircle(!) - the phone is still working at full power and screen on for a few hours and more.

Deleting battery stats for sure doesn't extend phone on time, BUT it can help calibrate your battery properly so that remaining % is displayed more accurately!
 
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zelendel

Senior Member
Aug 11, 2008
23,372
20,605
OnePlus 6T
Samsung Galaxy S21 Ultra
People who say deleting battery stats don't change anything, should look for some facts.

Let's say, I have new phone and battery quickly goes down to 1% and what a mircle(!) - the phone is still working at full power and screen on for a few hours and more.

Deleting battery stats for sure doesn't extend phone on time, BUT it can help calibrate your battery properly so that remaining % is displayed more accurately!
How about the facts that come directly from Google engineers? Who have said it is completely pointless and useless.
 

prana_Sky

Senior Member
Aug 21, 2010
541
90
Melbourne
How about the facts that come directly from Google engineers? Who have said it is completely pointless and useless.

So where are Google engineers now?

---------- Post added at 11:37 PM ---------- Previous post was at 11:03 PM ----------

Ok so after a bit of playing around I have seamed to rid of the battery cut off at 15% - 20% and so on.
As I done the battery reclab I noticed when I drained the battery the phone would turn off then I'd restart the phone it would boot alittle then shut off. Then I'd plug it in and the display would be an instant % around 5% -10% -15% . So from that I noticed the battery was not discharged to 0%.

What I did was boot into recovery and keept the screen on for as long as it needed till the battery really died and the screen turned off. I was surprised how much battery was left. Depending on your battery?. It took me around 30min to die.

After that I then plugged it in to do a full charge with phone off.
Let battery die again boot back to recovery and keep screen on Antill screen shutoff.
Do full charge again.
Antill you see your battery shut off at normal 0%.
I did this twice. You may need to do it more depending on your battery state.

Give it a go. Who knows it may work for you.
Good luck
 
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makap09

Member
May 12, 2016
12
0
Athens
Hi all,
My Jiayu S3+ has a problem not charging battery to 100% as usually but to 91-92%.
I changed the battery to a newer one (offered by a friend) and now full charge reaches only 83% .

What can I do to solve the problem?
 

droidzer1

Senior Member
Oct 28, 2013
543
168
I'll just say again that fully discharging a Li-ion battery is not good and will shorten it's life. Totally the opposite of NiCad and NiMH batteries which are a completely different chemistry. Google Battery University and learn a few things there about Li-Ion. Regarding the battery percentage readings I am not sure why they get so far off on some phones but forget the percentage stuff and look at the actual battery voltage (many apps will show accurate voltage out to 3 decimal points). If your voltage is at or near 4.395 volts your battery is fully charged. At least this is valid for most Samsung phones - your mileage may vary with other phones which my use a Li-Ion battery with slightly different chemistry. Charge level of Li-Ion batteries is very closely related to their voltage reading unlike Ni-Mh which can have a near full voltage reading while only being charged 5 to 10 percent.
 

SoemTechGuy

New member
Apr 21, 2018
1
3
This method is EXTREMELY dangerous, especially if you keep repeating it. This method will damage your battery and you will make it even worse than at the beggining.

Use this method instead:

1. Root your device;
2. Download "Battery Calibration" app from Google Play;
3. Download "ES File Explorer File Manager" app too from Google Play;
4. Charge your device to full;
5. Open "Battery Calibration" app and use premium option to calibrate ( You will have to watch an ad );
6. Wait for it to calibrate and then open ES File Explorer File Manager;
7. Press a button at the top left corner of the app;
8. Find "Root Explorer" and "Show Hidden Files" features and enable them ( At Root Explorer, if it asks you to Allow or Deny the permission, allow it );
9. Press a button next to the Home button in the program. Some folders should show up;
10. Press Slash above the folders and search for "batterystats.bin".
11. Delete the file and restart your device.

This is a method that can't damage your battery.
 
Last edited:

jimbo877

New member
Sep 13, 2018
1
0
What do I do when I cannot charge my battery up to more than 5% ?!

Can I just root and delete batterystats.bin nonetheless? Or will this end in a disaster?

I need my smartphone for work and highly depend on it. Please help.
 

shahriders

New member
Feb 7, 2015
2
0
my Motorola Edge 20 pro is draining really fast, but when it switches off at 0% and I turn it back on, it still shows 30% or somewhat remaining.
I tried battery calibration, either the calibration didn't work, or it's a hardware issue?
 

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  • 15
    1. Root your device and install Root Explorer.
    2. Use your phone until the phone switches itself off (battery empty)
    3. Switch on once more to make sure battery really is 0% (it will then immediately switch off once more)
    4. Now, keep switched off (!), plug in charger & leave in charging until 100%
    5. When battery is full, switch the phone on, unplug & check if the batter immediately drops 1 or 2 %
    6. If battery immediately drops, plug in charger once more (while running phone) & let it charge completely
    7. Once charging to 100% is done, don't plug off your charger, open your root explorer, at the top just click mount R/O, then it will set as mounted as R/O.
    8.Ok, now open the 'Data' folder.
    9.In the 'Data' folder, keep scrolling at the bottom and you will find 'System' Folder.
    10.Open the 'System' folder and find 'batterystats.bin'.
    11.Now you have to delete the 'batterystats.bin'. How to delete it?
    12.Tap the 'batterystats.bin' and it will show the file option, select 'delete'.
    13.Once it done, quick the root explorer and use the phone as usual until it switches itself off (battery empty).
    14.Please don't charge your phone if the battery are not completely empty.
    15.Charge your phone while running phone as usual until it shows 100% battery.
    16.make sure that during discharging,don't reboot your phone or the system will create a new batterystats.bin file or if already made, it will get corrupted and you will have to start again from first step
    17.Done this in 4 or 5 cycle, i mean the step 15 until step 18.
    18.Now enjoy the 'long life' Samsung Battery Life!!

    Note: these methods are not permanent and your battery stats may again get messed up any day, then you should repeat the method from first step.

    You may try this a few battery tips here.
    5
    1. Root your device and install Root Explorer.
    2. Use your phone until the phone switches itself off (battery empty)
    3. Switch on once more to make sure battery really is 0% (it will then immediately switch off once more)
    4. Now, keep switched off (!), plug in charger & leave in charging until 100%
    5. When battery is full, switch the phone on, unplug & check if the batter immediately drops 1 or 2 %
    6. If battery immediately drops, plug in charger once more (while running phone) & let it charge completely
    7. Once charging to 100% is done, don't plug off your charger, open your root explorer, at the top just click mount R/O, then it will set as mounted as R/O.
    8.Ok, now open the 'Data' folder.
    9.In the 'Data' folder, keep scrolling at the bottom and you will find 'System' Folder.
    10.Open the 'System' folder and find 'batterystats.bin'.
    11.Now you have to delete the 'batterystats.bin'. How to delete it?
    12.Tap the 'batterystats.bin' and it will show the file option, select 'delete'.
    13.Once it done, quick the root explorer and use the phone as usual until it switches itself off (battery empty).
    14.Please don't charge your phone if the battery are not completely empty.
    15.Charge your phone while running phone as usual until it shows 100% battery.
    16.make sure that during discharging,don't reboot your phone or the system will create a new batterystats.bin file or if already made, it will get corrupted and you will have to start again from first step
    17.Done this in 4 or 5 cycle, i mean the step 15 until step 18.
    18.Now enjoy the 'long life' Samsung Battery Life!!

    Note: these methods are not permanent and your battery stats may again get messed up any day, then you should repeat the method from first step.

    You may try this a few battery tips here.

    Clearing battery stats is pointless. Its just the placebo effect hard at work. Your phone doesn't stay charged any longer if you do this

    Sent from my SGS 2 LTE running SkyICS
    4
    Its more for the battery meter to not be off. Also; Motorolas dont like to turn on when they think the battery is dead and needs to charge... so.. bad battery stats can be a big deal.

    Wiping battery stats in no, way, shape, or form affects battery indication. Please do some fact-checking regarding the subject matter at hand rather than perpetuating gross misinformation. The notion that wiping battery stats does anything even remotely useful was clearly and concisely debunked long ago.

    The only actual valid posts in this thread have been from mr_clean5953, WastedJoker, and zelendel.The OP itself is riddled with misinformation and following the piss-poor advice given therein will shorten your battry's life.

    The same holds true for the advice for 4-6 deep discharge cycles prior to first use. It is totally unnecessary and contrary to what was stated, is not recommended by manufacturers of lithium-based batteries. The individual posting that may have been confused by the fact that it is a recommended practice for nickel-based batteries. Li-ion and lithium polymer batteries see no benefit from "priming" prior to first use. The singular effect of following that misguided advice is a shortened serviceable life of the battery.
    3
    This method is EXTREMELY dangerous, especially if you keep repeating it. This method will damage your battery and you will make it even worse than at the beggining.

    Use this method instead:

    1. Root your device;
    2. Download "Battery Calibration" app from Google Play;
    3. Download "ES File Explorer File Manager" app too from Google Play;
    4. Charge your device to full;
    5. Open "Battery Calibration" app and use premium option to calibrate ( You will have to watch an ad );
    6. Wait for it to calibrate and then open ES File Explorer File Manager;
    7. Press a button at the top left corner of the app;
    8. Find "Root Explorer" and "Show Hidden Files" features and enable them ( At Root Explorer, if it asks you to Allow or Deny the permission, allow it );
    9. Press a button next to the Home button in the program. Some folders should show up;
    10. Press Slash above the folders and search for "batterystats.bin".
    11. Delete the file and restart your device.

    This is a method that can't damage your battery.
    2
    Sorry about recall an old thread, but I think is important to say that 4-6 deep discharge/charge cycles are recomend for new batteries by all manufacters. Normally people tend to bypass this procedure leading to use of batteries not completly "formed", thus lack of battery duration.

    This process is not that recomended on old batteries as lion batteries don't like deep discharges.