have I got to calibrate battery everytime I update a rom or flash a zip?
or just when I change rom?
Only when changing the ROM, but it is not always necessary.
and, is necessary to reflash the bravia engine everytime I update my rom? or zips like that
If the ROM does not contain the Bravia Engine then yes. Look in the ROM's description for these informations.
Wiping battery stats have no effect. Just charge it to full and use it for a couple of cycles to calibrate it. No need to wipe the stats.
Sigg1996 said:
Wiping battery stats have no effect. Just charge it to full and use it for a couple of cycles to calibrate it. No need to wipe the stats.
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Actually it has, for me after some modding arround with battery i charged my phone and it stuck at 99% and kept charging forever and i noticed a touch lag, i re calibrated and went to 100% with a green light showing its not charging anymore.
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My buddy recently rooted my phone, I don't know much about this stuff yet. I unplugged my phone and it stayed at 100% battery for like 6 hours. My buddy says we need to wipe battery stats.
Can anybody help me with this?
Thank you
Download battery calibration from the market. Its free and the easiest way to do it.
Sent from my HTC Thunderbolt
yes wipe your battery stats
I've had problems with aosp roms doing that. The battery percentage sticks, then when you reboot, it updates.
Not sure what the cause is, but wiping battery stats didn't help.
Thanks for the replies.
I'll try all three.
How would I go about wiping battery stats? Does the phone need to be charged to 100 before doing this? Please walk me through it as if I were a 4 year old.
Recovery/ advanced/ wipe batt stats/ reboot to recovery/ system reboot.
should battery be full/plugged in to full when this happens?
If I do this, should I avoid downloading the app mentioned above?
Kdeli said:
should battery be full/plugged in to full when this happens?
If I do this, should I avoid downloading the app mentioned above?
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Charger should be unpluged , battery at 50% or above is ok , download the app after you are finished.
Kdeli said:
should battery be full/plugged in to full when this happens?
If I do this, should I avoid downloading the app mentioned above?
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Click to collapse
it is best to do a full charge.
have the app on your phone, clear stats
use phone until battery is fully dead, or close to it
recharge again to 100% with out unplugging it
and you should be good.
however charging it to 100% and wiping stats will be fine.
you can do it from the battery app mentioned above, or once charged to 100%, hold power, select reboot, choose recovery, once clockwork shows up, go to advanced, wipe battery stats, "go back" reboot phone.
Thank you all very much. It is much appreciated.
I look forward to actually doing some reading in my spare time (yea right, spare time,) so that I can be more educated.
-k.d.
Is wiping battery stats still the same process?
Wait for battery to completely drain
Plug in phone/boot into recovery
Wipe battery stats, then power off
And let it get a full charge?
Sent from my iPhone 4S using Siri
I almost never wipe Battery Stats, only when i'm getting horrible battery.
But if you want to do it, just wait until it's charged and wipe battery stats using "Battery Calibration" App (Faster than going into CWR). Then simply go through at least one complete battery cycle.
There's never a fixed and confirmed way about doing this.
Some said to fully drain, then wipe battery stats (no clue how do you wipe something if it's already fully drained), give it a full charge (they didn't specify if the phone has to be on/off either).
And some others said it's best to fully charge, wipe, full discharge, and then a full charge again.
Some don't even recommend it at all, saying the battery stats will "fix itself" after a couple of discharges anyway, so calibrating won't be necessary.
cabstrak said:
There's never a fixed and confirmed way about doing this.
Some said to fully drain, then wipe battery stats (no clue how do you wipe something if it's already fully drained), give it a full charge (they didn't specify if the phone has to be on/off either).
And some others said it's best to fully charge, wipe, full discharge, and then a full charge again.
Some don't even recommend it at all, saying the battery stats will "fix itself" after a couple of discharges anyway, so calibrating won't be necessary.
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i tell people both ways, either charge completly full or completly drain it. then delete the batterystats.bin file and reboot. generally i use root explorer to delete it. its located in /data/system/batterystats.bin. theres many ways to do it.. in recovery, with root explorer, with a battery calibration app, or with a script in the terminal emulator.
Will flashing a ROM with less than 100% battery harm anything?
My wife's phone is still having issues with the NEWsense rom after getting a new battery from sprint. I flashed NEWsense while the phone was charging, at the time of the flash it was at roughly 45%. When charging, it will say it's charged to 100%, but after 3 hours of light use with wifi on, it's down to 27% already.
Is this something the battery calibration option in the NEWsense control panel would fix? Or is wiping battery stats the best way?
I could always charge to 100%, then re-flash the rom.
I guess I'm just lost as to why this keeps happening.
I flash ROMs with whatever battery I have left and never had an issue.
I don't wipe battery stats because each time the battery charges to full the stats are wiped anyways.
A new battery can take a few charge cycles to start performing like they should so just give it some time.
Sent from my HTC MyTouch 4G Slide running MikXE
bryank930 said:
Will flashing a ROM with less than 100% battery harm anything?
My wife's phone is still having issues with the NEWsense rom after getting a new battery from sprint. I flashed NEWsense while the phone was charging, at the time of the flash it was at roughly 45%. When charging, it will say it's charged to 100%, but after 3 hours of light use with wifi on, it's down to 27% already.
Is this something the battery calibration option in the NEWsense control panel would fix? Or is wiping battery stats the best way?
I could always charge to 100%, then re-flash the rom.
I guess I'm just lost as to why this keeps happening.
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Did you do a Full Wipe before Flashing the Rom? Did you Restore any Data? In WiFi do you have it set for WiFi-performance? What is your WiFi-sleep Policy set at? Oh BTW did Sprint send you a 1500mAh Battery, or the 1400mAh Battery?
Can you guys recommend a battery calibration app?
Currently im using ViperSaga, and yes we all know that our DS can live for a day or two depends on the usage.
Battery calibration by wiping battery stats is a myth. After 2-3 charge cycles, the indicated battery level will be as accurate as it ever will or can be.
Battery booster maybe ?
AOSP developer Dianne Hackborn has made it clear that battery calibration is a myth. It only mean deleted the battery stats. And your device does that on each reboot.
how about the wipe battery stats in the recovery? does it help the calibration of the battery?
eisenger said:
how about the wipe battery stats in the recovery? does it help the calibration of the battery?
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Battery calibration does exactly that. It wipes the battery stats. And that is something your phone does automatically on each reboot.
Deleting stats is pointless indeed, but the battery calibration procedure that involves a discharge/recharge cycle, not only deletion of the stats file helps to have proper % indication that cannot happen on a Stock ROM which is the case the Google engineer is talking about. But when flashing custom is another story, then a wrong indication can appear after flashing and it has to be corrected
Sent from my HTC Desire S
Though you can leave out wiping the battery, stats, the charge/discharge cycle is what helps.
teadrinker said:
Though you can leave out wiping the battery, stats, the charge/discharge cycle is what helps.
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Yes, including the final charging of powered off phone, that was posted in several threads lately by the same user
Sent from my HTC Desire S
Hello guyz,
I want to wipe battery stats of my nexus s but there is no option like that in cwm>Advance>Battery Wipe Stats
Can anybody help me in this?Thx
don't ... it's quite useless
( there are tons of app,but u can also charge to 100% and battery stats are deleted automatically, or pull out battery, anyway it doesn't affect battery life ... )
Yeah as the last poster said, a Google person came out and busted the myth that wiping battery stats helps in batterylife/precise readings. The stats wipe on their own after each cycle, I don't know exactly how long those cycles are but most likely after full charges/a day or two etc.
Its best to just let it be and it will calibrate itself.
But if you really want to the batterystats.bin file is located in the system or data folder in the root directory, delete it and it will automatically start a new one.
I wan to wipe battery stats of my nexus s bcaz it's not fully charging to 100% Only charging to 98% and saying fully charged.Today i have flashed a new rom and now it's charging to only 95%.What the heck problem it is
rakeshbro said:
I wan to wipe battery stats of my nexus s bcaz it's not fully charging to 100% Only charging to 98% and saying fully charged.Today i have flashed a new rom and now it's charging to only 95%.What the heck problem it is
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Click to collapse
Some ROMs have a ceiling for charging the battery in order to 'preserve the battery' so it doesn't completely die as fast. So they make it so that it can't charge all the way to 100%
So its not an actual problem on your phone and wiping stats won't help you
However if you still want to be able to charge to 100% you can download nstools which has an option to fully charge
Sent from my Nexus S using xda app-developers app
kriout said:
don't ... it's quite useless
( there are tons of app,but u can also charge to 100% and battery stats are deleted automatically, or pull out battery, anyway it doesn't affect battery life ... )
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abccg said:
Yeah as the last poster said, a Google person came out and busted the myth that wiping battery stats helps in batterylife/precise readings. The stats wipe on their own after each cycle, I don't know exactly how long those cycles are but most likely after full charges/a day or two etc.
Its best to just let it be and it will calibrate itself.
But if you really want to the batterystats.bin file is located in the system or data folder in the root directory, delete it and it will automatically start a new one.
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Click to collapse
frenchie007 said:
Some ROMs have a ceiling for charging the battery in order to 'preserve the battery' so it doesn't completely die as fast. So they make it so that it can't charge all the way to 100%
So its not an actual problem on your phone and wiping stats won't help you
However if you still want to be able to charge to 100% you can download nstools which has an option to fully charge
Sent from my Nexus S using xda app-developers app
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Click to collapse
Ok guyz thx for ur post and ur time.
Batterystats is nonsense. Batterystats are wiped every time you charge your phone to full or almost full. It makes no sense to wipe battery stats with an app. Fully charging your phone and letting it turn itself off because its empty works best!
Me Gusta!
I used an app called battery calibration..
Sent from my Nexus S using xda app-developers app
rakeshbro said:
I wan to wipe battery stats of my nexus s bcaz it's not fully charging to 100% Only charging to 98% and saying fully charged.Today i have flashed a new rom and now it's charging to only 95%.What the heck problem it is
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Click to collapse
I had the same issue when i was using stock google ICS/JB ROM.
It disappeared when i made the switch to CM.
No need to delete batterystats.bin
Just flash kernel with blx