I find that the battery goes out of calibration within a week on my Nexus..not by much, I mean, it's just a 10% or less difference, but when I freshly charge my phone overnight, power it off while it's still plugged in, wipe battery stats, and let it charge for another hour while powered off, then turn it back on, the battery life is fantastic. By the end of the week, with the same amount of use, I'm 10% lower at the end of the day than I was at the beginning of the week.
But I'm wondering if there's any kind of damage I could be causing to my phone by wiping the battery stats once a week?
I don't see how wiping the battery stats could harm the phone. They are small files, I guess eventually it will wear out much like a USB Flash drive would. But other than that I can't see any harm in doing it. Just means your device has to write files a little more often.
How does one wipe the battery stats? are they stored on the SD card or internally through application manager?
android01 said:
How does one wipe the battery stats? are they stored on the SD card or internally through application manager?
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You can wipe them through a custom recovery manager such as RA-Recovery or ClockworkMod Recovery.
Not sure of other ways.
Related
Since i hit the option of wipe battery data, im having some issues with my battery it drains really fast. i tried those steps but i dont know if i did it rite?
Battery recalibration
If you're experiencing higher than normal battery drain, try the following:
1. Charge the phone to full battery; power off and let it keep charging until the light is green.
2. Boot to recovery mode and go to console (or adb shell) and type:
mount -a
rm /data/system/batterystats.bin
1. Reboot the phone and use it normally, but don't charge until it shuts off.
2. Recharge the phone completely and then use as you normally would.
Note: Newer Amon_Ra recoveries have an option to delete the battery stats, do this in place of the console commands above, but charge/discharge as stated. ***************
Thats what i did:
Charge the phone when its off, fully charge, unplugged the phone and wipe battery stats, use the phone and let it get off by itself, recharged the phone and still the same issue,
i did something wrong?
Are you sure it's because of battery stats? One thing that drains the battery on my phone really fast is if I enable keeping home app in the memory on CM ROM (done via Spare Parts).
Karolis said:
Are you sure it's because of battery stats? One thing that drains the battery on my phone really fast is if I enable keeping home app in the memory on CM ROM (done via Spare Parts).
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ok im gonna try to deactivate that option but it was good before i decided to wipe the battery data from the RA-recovery
Karolis said:
Are you sure it's because of battery stats? One thing that drains the battery on my phone really fast is if I enable keeping home app in the memory on CM ROM (done via Spare Parts).
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well i did what u say and my phone still turning off even when the battery its half way,
About to buy a new battery for my CM5.0.7/Danger G1. Just put in the new battery and charge it all the way (with device off) and then power on, or charge fully then wipe data then power on?
noCOMPLY said:
About to buy a new battery for my CM5.0.7/Danger G1. Just put in the new battery and charge it all the way (with device off) and then power on, or charge fully then wipe data then power on?
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You are changing the BATTERY?
Battery will NOT affect internal storage.
I mean should I wipe the Battery Data or just charge that bad boy up.
I know batteries don't affect internal storage. I'd like to think that everyone knows that, but if you feel the need to tell me, I guess you have encountered quite a few "amateur coders" in your time.
But, yeah...any benefits to wiping battery data first/after charging?
Same Question here :/
after purchasing new battery, for sure it has a lil charge.
so what u must do is, drain the battery till it runs out of charge
and then after draining, its the time u will charge it.'
in sort, u will
1. drain the batt
2. fully charge it (while device is off )
noCOMPLY said:
But, yeah...any benefits to wiping battery data first/after charging?
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I'm changing my s7 battery also... so no wipe to battery data?
Is it true that the porcentage of battery u have when u flash ur phone is the one that will be used as the new 100% ? also whats the procedure i should use to erase the battery stats? my phone dies in like 4 hours , let it discharge, charge completely and then?
I don't think so, cause i always flash my MS anytime i wish even when the indicator show <20%, or when charging on UBS
I also never bothered to charge fully before flashing. Though I think resetting battery stats does help indeed.
i also read something similar to this, someone told me to charge to full, then let the phone discharge UNTIL IT TURNS OFF BY ITSELF (=battery completely dead), then charge to full again and then delete the file batterystats.bin in /data/system folder (root required).
i suppose this is what you are talking about?
i will try this in a few hours (currently discharging the last % of my battery).
andreju said:
I also never bothered to charge fully before flashing. Though I think resetting battery stats does help indeed.
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Im confused im supposed era the stats before right after chanrging full charging the phone or i sould let it discharge m, then erase the stast and then full charge the phone?
What's your ROM?
On froyomod do you have option to calibrate battery and wipe battery status
Well, I've flashed it to FroyoRom with approx. 40% charge, played around a little, the next day when I was normally using it and my battery went down to 30% I deleted the battery stats, the system rebooted and voilla, I was at 50%
I don't know about this full charge - discharge - full charge - delete stats version. I guess I'll try it on an occasion and see what happens. At this moment I'm at 90% after being disconnected from charger for 5 hrs, though I wasn't using the phone much during this time.
...and currently finishing the same charge - after 1 day and 17 hrs currently at 20%. My Milestone never made it through the day without having to charge it through the night. Love it
The FroyoMod is really the best at the moment...
I never had this problem until recently i've flashed to Cog 4.
It started after i did a full charge. It discharges to 80% and to 50% and to 20% and to 5% and then died off within an hour. My phone heated up even though when it is not active.
Now, after changing a new battery. I find that i can't charge it above 85%. I re-flashed with Phoenix and Serendipity. The maximum charge still stays at 85%.
I've cleared the battery stats and nothing changed. I need help here.
You might find this thread useful
http://forum.xda-developers.com/showthread.php?t=806211
It has some discussion about cog and battery life, but I suspect it might be outdated. Either way, it should have good info for you on how to get the battery fully charged
First of all, with custom roms, battery drains much quicker than normal, but i think you need to do a calibration. Charge your phone for like 12 hours to make sure its completely full, then drain it all the way until it dies. Then make sure its completely dead and wont turn on (sometimes the phone thinks the battery is dead, but its not. To solve turn on and off until there is no more responce. Take out battery, then try and power on. This will get rid of any static charge in the phone. Put battery back in and charge for another 12-15 hours to make sure its completely full. Go into recovery and wipe battery stats. Then let it die. That should do it.
Sent from my SAMSUNG-SGH-I897 using XDA App
Dupontrocks11 said:
First of all, with custom roms, battery drains much quicker than normal, but i think you need to do a calibration. Charge your phone for like 12 hours to make sure its completely full, then drain it all the way until it dies. Then make sure its completely dead and wont turn on (sometimes the phone thinks the battery is dead, but its not. To solve turn on and off until there is no more responce. Take out battery, then try and power on. This will get rid of any static charge in the phone. Put battery back in and charge for another 12-15 hours to make sure its completely full. Go into recovery and wipe battery stats. Then let it die. That should do it.
Sent from my SAMSUNG-SGH-I897 using XDA App
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yes and no.
custom roms wont necessarily use more power, in most cases less. and technically most power consumption is controlled by the kernel, and secondly the installed services in the ROM. new kernels useually come with a new rom but you dont have to keep it or you can upgrade it ect. But yes, when changing the kernel either by itself or with a rom you should reset battery stats.
I suggest drain it dead, plug it in until it is full, reboot into recovery and wipe batt stats (or use SGS tool script) WHILE PLUGGED IN, unplug.
or if you have an external batt charger, wipe batt stats in CWM then put in full battery.
Trusselo said:
yes and no.
custom roms wont necessarily use more power, in most cases less. and technically most power consumption is controlled by the kernel, and secondly the installed services in the ROM. new kernels useually come with a new rom but you dont have to keep it or you can upgrade it ect. But yes, when changing the kernel either by itself or with a rom you should reset battery stats.
I suggest drain it dead, plug it in until it is full, reboot into recovery and wipe batt stats (or use SGS tool script) WHILE PLUGGED IN, unplug.
or if you have an external batt charger, wipe batt stats in CWM then put in full battery.
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Click to collapse
When I said custom roms i meant that when you are on something other from stock. And for the most part, unless you are on a minimalistic rom, you do get worse battery. It is a known fact. Sure I have gotten 50 hours out of a rom/kernel combination, but it was never consistent. I had to flash back to stock and masterclear because i have random shutoffs and need to return it, and im seeing easily 30 hours out of stock with 3 hours usage of web email phone. Maybe its not the same for you, but stock has had the best consistent battery life for me.
Sent from my SAMSUNG-SGH-I897 using XDA App
So I bought a brand new battery off ebay, wiped the battery stats and everything else on the phone and I installed a new ROM.
I followed Cyanogen's Wiki battery wipe procedure.
My problem is that when I get to the last step the battery doesn't seem to recharge to 100% even when left overnight; but if I reboot it it will go to 99.9% then 100%
Is this normal for a new battery?
i think the proper way to charge a new battery is to keep the device off and let it fully charge, than turn it on..? maybe.. im not 100% sure lol
JaboJG said:
So I bought a brand new battery off ebay, wiped the battery stats and everything else on the phone and I installed a new ROM.
I followed Cyanogen's Wiki battery wipe procedure.
My problem is that when I get to the last step the battery doesn't seem to recharge to 100% even when left overnight; but if I reboot it it will go to 99.9% then 100%
Is this normal for a new battery?
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dont know if anyone had that issue but i did too. best way is charge the phone to 100%, leave it plugged still boot to recovery, wipe stats, reboot, let it sit for a couple of minutes then you can unplug. or download this app Battery Calibration and when your phone is fully charged, just open the app, calibrate the battery, unplug and go
ps the G1's battery sucks monkey balls, but if you find a stable and decent rom/kernal, itll last you a whole work day with minimum usage, and having data off