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?
Click to expand...
Click to collapse
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?
Click to expand...
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.
Related
Title says it all
I always do and I also make sure phone is fully charge and plugged in. Cant hurt
wouldn't hurt, also if swapping batteries as well.
Question related to this - what is everyone's battery voltages when maxed out? I heard that 4200mV is normal, but after how much I charge it and wipe stats, I never get higher than 4080mV in spare parts.
Nikolai2.1 said:
Title says it all
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Sorry for the noobness, but How do you wipe battery stats?
moosez3 said:
Sorry for the noobness, but How do you wipe battery stats?
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Click to collapse
rom manager, reboot into recovery or pull battery, and vol. down.
D3TH METAL said:
rom manager, reboot into recovery or pull battery, and vol. down.
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Click to collapse
Then go to advanced>wipe battery stats and remember to charge to 100% before wiping. Then let battery completely drain until phone dies and charge back up to 100% preferably with the phone still off.
thanks guys, and sorry i got back here so late. I also use an app from the market called battery calibration. I think its better because rebooting into CWM may use some battery and you would never know
I have another question.
What exactly is the battery stats? and what does it do when I wipe it?
I've been wiping the dalvik cache and battery stats when I flash rom/kernel/etc but never really knew what they were.
eccenpix said:
I have another question.
What exactly is the battery stats? and what does it do when I wipe it?
I've been wiping the dalvik cache and battery stats when I flash rom/kernel/etc but never really knew what they were.
Click to expand...
Click to collapse
Only flash battery stats when its charged to one hundred or it'll screw your battery readings. It just makes your battery meter more accurate because flashing a Rom screws with it.
Sent from my ADR6400L using XDA Premium App
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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Click to collapse
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.
Hello. This issue has been going on for a while now. But when I take my phone off the charger when its not fully charged. The battery percentage keeps going up. For example if I unplug it at 78%, the percentage will gradually go up to like 86-88%. Can anyone give me a hint as to why its doing this? Thanks!
Sent from my SAMSUNG-SGH-I727 using XDA
MrTenseJACOB said:
Hello. This issue has been going on for a while now. But when I take my phone off the charger when its not fully charged. The battery percentage keeps going up. For example if I unplug it at 78%, the percentage will gradually go up to like 86-88%. Can anyone give me a hint as to why its doing this? Thanks!
Sent from my SAMSUNG-SGH-I727 using XDA
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Click to collapse
Battery stats are wonked out.
Do you have Clockwworkmod recovery installed? Or is this a pure stock unrooted?
EDIT: Mr. Jacob, what are you tense about? LOL ! Just kidding....
Try using an app called battery calibration (can be found in the app market) when the phone is fully charged. This will reset all the battery stat logs and set your 100% to a true 100%
I have clockwork installed. I'm running SkyICS rom. And I have already tried battery calibration.
PS: And nothing really xD its been my screen name since the early Xbox days
Sent from my SAMSUNG-SGH-I727 using XDA
Battery calibration does nothing. Normally I wouldn't recommend that u COMPLETELY drain the skyrocket battery as its lithium based and can cause dead cells, yours needs calibrating, and wiping battery stats or using a battery calibration app won't help (both of these are myths by the way, Google if). Use phone until its completely dead, and won't turn on at all, only vibrate with a black screen. Then charge phone for a continuous 8 hours uninterrupted, that should fix it
MrTenseJACOB said:
I have clockwork installed. I'm running SkyICS rom. And I have already tried battery calibration.
PS: And nothing really xD its been my screen name since the early Xbox days
Sent from my SAMSUNG-SGH-I727 using XDA
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Click to collapse
As a first try, charge to 100%. Then go into CWM recovery and wipe battery stats. It should be good to go....On ICS, thsi seems to fix it for me.
IF you then stilll have weird battery problems a proper recallibration will be in order.
I had to just wipe battery stats when charged to 100%. DON'T just wait for 100%. Alow the phone to get to fully charged.....if you have "Full Charge" notification on your ROM wait for that.
chappatti said:
As a first try, charge to 100%. Then go into CWM recovery and wipe battery stats. It should be good to go....On ICS, thsi seems to fix it for me.
IF you then stilll have weird battery problems a proper recallibration will be in order.
I had to just wipe battery stats when charged to 100%. DON'T just wait for 100%. Alow the phone to get to fully charged.....if you have "Full Charge" notification on your ROM wait for that.
Click to expand...
Click to collapse
Half of this is right chappatti
charging to 100% and letting it sit for at least an hour even after full charge notification is the best way. Wiping battery stats in cwm won't actually do anything though, thats a myth.
Actually, for lithium ion batteries, it is not recommended to let them discharge to zero. It's better to run it down to 10% or so (i usually do about 5%). and then charge it completely. Rinse and repeat over a few days, and there should be a difference.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Sent from my SAMSUNG-SGH-I727 using Tapatalk
icenight89 said:
Half of this is right chappatti
charging to 100% and letting it sit for at least an hour even after full charge notification is the best way. Wiping battery stats in cwm won't actually do anything though, thats a myth.
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Click to collapse
Yup, ice, ur are right. Wiping stats is not about battery charging stats....
https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT
What a revelation !! It's like realising my religion is all wrong !
BUT, BUT, BUT : reading the whole battery stats discussion, it i also clear that the business of charging for an hour after 100% is also not worthwhile, but is just a customer gimmick to make people feel thier batteries are topped off. This was started by HTC and the consensus is that is also does not help.
The simple solution is to let the battery go through 2-3 charge-discharge cycles.
Saitou33 said:
Actually, for lithium ion batteries, it is not recommended to let them discharge to zero. It's better to run it down to 10% or so (i usually do about 5%). and then charge it completely. Rinse and repeat over a few days, and there should be a difference.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Sent from my SAMSUNG-SGH-I727 using Tapatalk
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A good read. Very useful, thanks !
I had this same issue with my Exynos G2, my problem was flashing different roms or putting a theme on. My fix came not by wiping battery stats but only doing flashes at 100% and plugged in. I never noticed it on my SR though. I'm not saying don't try what the others say, just giving you more options.
HW/SW specifics at bottom (if it helps)
Following the instructions provided this great site I added a custom ROM last year and for 6-8 months everything worked perfectly.
I was getting two days charge out of my battery which was is a 200% improvement. I'm not on my phone all the time.
Lately however, my phone has only been charging to 90%, and now 82% and the batt. drains before the day ends.
Using the same instructions here, I restored the phone using CWM with the files listed below (which are the same files I used originally) to restore my phone.
Everything seems to be working fine but I found a bunch of old files and app links to programs I had before so obviously I didn't do a full wipe which is what I was intending to do.
Can I restore my phone by going into CWM > Wipe data/factory reset or do I have to use ODIN to go back to factory firmware (I just downloaded I727RUXLF3_I727RRWCLF3_RWC.zip) to reset then go through the steps all over again.
Pardon the lack of terminology as I have only done this twice so I'm still new to this.
I just don't know what I need to do to get it back to stock and by stock I mean the ROM below.
Thank you all in advance. Hopefully I have provided enough information.
Samsung Galaxy S II Skyrocket SGH-I727R
ICS RUXLF3radio.zip
SKY ICS 4.2E R5goo.zip
Sky ICS 4.2E-17.zip
If you want to go back to like New condition I would do the odin process. You'll have to extract the .tar.md5 file out of the zip file you downloaded, the stock rom not the sky files. User 7-zip to extract. Put the extracted file in PDA in odin. Only have the auto reboot and f.reset checked in odin.
You'll then have to odin your recovery back on.
Sent from my SGH-I727R using xda app-developers app
jd1639 said:
If you want to go back to like New condition I would do the odin process. You'll have to extract the .tar.md5 file out of the zip file you downloaded, the stock rom not the sky files. User 7-zip to extract. Put the extracted file in PDA in odin. Only have the auto reboot and f.reset checked in odin.
You'll then have to odin your recovery back on.
Sent from my SGH-I727R using xda app-developers app
Click to expand...
Click to collapse
Thanks JD I'll give that a shot.
Condition your battery for it to show correctly. Drain battery completely till it won't even turn on. Then plug it in and charge completely with it off. Once done boot phone into recovery cwm. Wipe battery stats. Then reboot.
Make sure battery is not hot to ensure a good charge after draining battery.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
Jnewell05 said:
Condition your battery for it to show correctly. Drain battery completely till it won't even turn on. Then plug it in and charge completely with it off. Once done boot phone into recovery cwm. Wipe battery stats. Then reboot.
Make sure battery is not hot to ensure a good charge after draining battery.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
Click to expand...
Click to collapse
First off its actually hard on a battery fully discharge it. Second wiping battery stats does absolutely nothing for the battery or the android system so this tells me you have no clue what you're doing.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
Weird battery problem - charging
Ok, here's a weird one, you've probably seen before but it's new to me.
I wiped my phone back to factory stock using Vin's instructions. Followed them to a T and had no problems.
Kies then wanted to update my software (now at 4.1.2) which I let happen because I was just going to wipe it again anyways.
My battery still won't charge past 80%. When turned off, it shows 100% but the second I turn it on it immediately drops to 80%.
The battery life seems to be OK so that's not a problem.
Last night I swapped batteries with my wife's phone (factory stock SGH-T989D).
Here is where it gets weird (for me).
Her phone with my batt. charged to 100% and stays at 100% when turned on.
My phone with her batt. only charges to 80%. Again, when turned off it shows 100%.
So the battery is ruled out as being faulty I would think.
My phone has been factory wiped.... or has it? Did I screw up the wipe and leave some remnant behind?
Is there something I can install that will tell me exactly what is going on?
Suggestions?
I apologize if this type of question has been asked a thousand times but if the battery calibration is a 'myth' then I don't even know what to look for anymore.
Thanks
Try taking the battery out and leaving it out for 5 minutes. While it's out press and hold power for twenty or thirty seconds. That will discharge any residual juice in the phone. Pop the battery back in and power on.
Don't know what else to try
hechoen said:
Try taking the battery out and leaving it out for 5 minutes. While it's out press and hold power for twenty or thirty seconds. That will discharge any residual juice in the phone. Pop the battery back in and power on.
Click to expand...
Click to collapse
I tried that several different times over the weekend. I got it up to 84% from 80% but now it shows 100% charged within a few seconds after plugging in the phone while it is turned on. When I pull the cable, it goes back down to 84%.
I'm thinking of wiping it again but I'm not sure that is going to resolve the problem. Don't know what else to do/try.
Jnewell05 said:
Condition your battery for it to show correctly. Drain battery completely till it won't even turn on. Then plug it in and charge completely with it off. Once done boot phone into recovery cwm. Wipe battery stats. Then reboot.
Click to expand...
Click to collapse
Don't ever do this. Draining your battery below 15-20% is actually bad for it, as the heat generated by simply charging it while idle does damage. It's also been shown that the lower the depth of discharge, the more cycles your battery will have in it.
Also, Android devs who work for the big G have said that battery stats are essentially meaningless in this generation of phones. If you do calibrate your phone, don't run the battery all the way down. Get the 100% baseline, then use it as normal.
Download the battery calibration app. I believe Skyrockets max out at 4330 mV, but I could be thinking of the Note II. If the battery calibration app shows that you're in that neighborhood, who cares if the meter says 100% or not? You're getting a full charge.
IndyDakota said:
I tried that several different times over the weekend. I got it up to 84% from 80% but now it shows 100% charged within a few seconds after plugging in the phone while it is turned on. When I pull the cable, it goes back down to 84%.
I'm thinking of wiping it again but I'm not sure that is going to resolve the problem. Don't know what else to do/try.
Click to expand...
Click to collapse
Tried a different battery?
T.J. Bender said:
Don't ever do this. Draining your battery below 15-20% is actually bad for it, as the heat generated by simply charging it while idle does damage. It's also been shown that the lower the depth of discharge, the more cycles your battery will have in it.
Also, Android devs who work for the big G have said that battery stats are essentially meaningless in this generation of phones. If you do calibrate your phone, don't run the battery all the way down. Get the 100% baseline, then use it as normal.
Download the battery calibration app. I believe Skyrockets max out at 4330 mV, but I could be thinking of the Note II. If the battery calibration app shows that you're in that neighborhood, who cares if the meter says 100% or not? You're getting a full charge.
Tried a different battery?
Click to expand...
Click to collapse
Can you recommend a battery calibration app?
I did swap out the batteries as per the post above. I was thinking of charging the wife's batt. to 100% and putting it in my phone. Then do the pull the batt. for five minute trick. At this point it's all about the hail mary.
I'll keep you posted
Update: HAHA! Just gets better and better. Downloaded two battery calibration apps. Both say to charge to 100% before operating... FML.
I use Battery Calibration. It shows the mV along with the charge level. If you're charging to 4100 mV+ when it freezes at 81%, you're doing ok. If you're only charging to 3000-some mV, your battery's borked.
T.J. Bender said:
I use Battery Calibration. It shows the mV along with the charge level. If you're charging to 4100 mV+ when it freezes at 81%, you're doing ok. If you're only charging to 3000-some mV, your battery's borked.
Click to expand...
Click to collapse
Been testing a few things. I charged my battery to 83% (full) and put it in my wife's phone. It registers as 100% so it's not the battery.
Yeah, I could live with it but it bugs me as I'm sure it would bug you too!
The problem I'm running into is when I put the battery back in it goes to 83%.
I installed two battery calibration tools. Both called 'Battery Calibration' One says it can't operate until the battery is charged to 100% so I'm screwed there.
The other one says my phone needs to be rooted. I thought I had already taken care of this but I went through Vincom's steps again to root (just to be sure) and now I routinely get a "E-signature verification failed"
The CWM (ver 6) doesn't give me the option to apply from external card, nor does it have an advanced section. I think I am going to wipe the phone again and use the old CWM.
===UPDATE===
I ended up wiping my phone again, going back to CWM 5 and SKYICS 4.2. Wiped everything and voila. Battery is reading 100% again.
Thanks TJ for your assistance and patience.
IndyDakota said:
I ended up wiping my phone again, going back to CWM 5 and SKYICS 4.2. Wiped everything and voila. Battery is reading 100% again.
Thanks TJ for your assistance and patience.
Click to expand...
Click to collapse
Isn't it a great feeling when a potential hardware (e.g., $$$) issue turns out to be a simple software fix?
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
Click to expand...
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 ... )
Click to expand...
Click to collapse
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.
Click to expand...
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
Click to expand...
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
Click to expand...
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