most people here are changing ROMs...and most of the time people say that some ROMS are a big battery drainer..
some move to other ROMs because they noticed that the battery performance of the ROM they are using is changing..
this happens because all the records on the way we charge are saved on the battery stats..sometimes our battery meter says the wrong information. that is why we have to calibrate our battery...we usually do this by going to CWM and wipe battery stats..
but are we really doing it the right way?
here is my guide to do this in the proper way:
i know some of you are using battery calibration from them the market, but all it does is just delete battery_stats.bin from system..But the truth is, the system is still writing the old battery stats if it's erased online...So the only solution is to delete it through recovery...
this is what you need to do:
1.Install Battery Monitor Widget from Market for Monitoring
2.Charge your phone to 100%
3.When done, restart your phone, but go to CWM recovery
4.Go to advanced -> Delete Battery Stats
5.Reboot, you should get battery about 90-100% (depending how much margin has been wrongly calculated)
6.Open Battery Monitor Widget to monitor the voltages. the maximum voltage is 4200mV for Li-Poly battery. Try to reach that value before disconnecting the charger.
7.Before the voltage graph getting dropped, Disconnect the charger immediately. for me it is stopped at max 4190. your mileage may vary.
8.You're done, your battery is calibrated..
kind regards,
baiclark
Thanks for the tips
I dont have wipe battery stats in CWM. What to do now
It is in "advanced" option
Yes but there is no Wipe battery stats
krasimiretov said:
Yes but there is no Wipe battery stats
Click to expand...
Click to collapse
its there brov.. its underneath wipe dalvick cache!
Here is an even more impressive method ....
Charge the phone to 100% and remove it from charger !!!
Voila!!
Tuturu !!
There !! done !! batterystats refreshed !!!
http://www.xda-developers.com/andro...-battery-stats-does-not-improve-battery-life/
https://plus.google.com/u/0/105051985738280261832/posts/FV3LVtdVxPT
CWM v6.0.2.7 there is no delete battery stats
Sent from my ST15i using xda premium
Yes, There's no option for wipe battery stats on CWM 6
Only CWM 5 i guess
Guys!! Wipe battery stats is havent nothing to do with battery life!! There is only info about battery drain of every app and time of theses app. Also battery stats are wipe every time when you charge battery above 90% so this function in cwm is practicaly useless.
Sent from my ST15i using xda app-developers app
madhouses said:
Guys!! Wipe battery stats is havent nothing to do with battery life!! There is only info about battery drain of every app and time of theses app. Also battery stats are wipe every time when you charge battery above 90% so this function in cwm is practicaly useless.
Sent from my ST15i using xda app-developers app
Click to expand...
Click to collapse
This was actually confirmed by Google themselves. I think it was the year before last.
Sent from my SK17i using xda premium
I tried it already. but i think my battery stat is still wrong. It randomly turn off at 10%
Because this is nothing to do with battery stats. Whats really help me even on non android phones is keep phone on charger even if phone show 100% if this persist battery have bes of life gone.
Sent from my ST15i using xda app-developers app
johan23 said:
I tried it already. but i think my battery stat is still wrong. It randomly turn off at 10%
Click to expand...
Click to collapse
For sudden drops to 0% Sony Service recommends that you charge the phone to 100%, remove the usb cable and the battery for at least 10 minutes. Return the battery to your device, turn the power back on and put your phone back on the usb charger until it hits 100%.
nice job
good work man. thumbs up...
thank you!
justmpm said:
For sudden drops to 0% Sony Service recommends that you charge the phone to 100%, remove the usb cable and the battery for at least 10 minutes. Return the battery to your device, turn the power back on and put your phone back on the usb charger until it hits 100%.
Click to expand...
Click to collapse
Thank you I've had this isssue I'll try it later today thanks
thanks
justmpm said:
For sudden drops to 0% Sony Service recommends that you charge the phone to 100%, remove the usb cable and the battery for at least 10 minutes. Return the battery to your device, turn the power back on and put your phone back on the usb charger until it hits 100%.
Click to expand...
Click to collapse
Thanks, will try that.
justmpm said:
For sudden drops to 0% Sony Service recommends that you charge the phone to 100%, remove the usb cable and the battery for at least 10 minutes. Return the battery to your device, turn the power back on and put your phone back on the usb charger until it hits 100%.
Click to expand...
Click to collapse
Just found this method. Testing it now. Anyone tested it? Is it working?
My Ray's battery went from 25% to 1% suddenly.
Related
Hi guys, when i try to charge my battery its stop charging with 90% and never goes beyond that. It starts to happen 2 weeks ago.
Any help would be great to fix it.
Thanks,
Did you search this forum?
Sent from my MB860 using XDA App
Boot into recovery, then go to advanced and reset battery stats, then reboot. Use your phone until the battery dies then fully recharge. If this doesn't fix the issue, you may have a bad battery.
Sent from my GT-I9100 using XDA Premium App
Have you Tried to Recalibrate the Battery?
Sometimes the phone battery monitoring gets out of sync and the remedy is to recalibrate the battery.
You can either try one of the available apps in the Android Market or you can do some manual steps available online(just search for Android Battery Recalibration).
Here is one example, scroll down to Battery Calibration section: http://www.darkyrom.com/community/index.php?threads/guide-battery-life.2551/
I tried wiping the battery stats and calibrating as well but what worked for me was:
1. Charge for at least 4 hours to ensure a full charge
2. Unplug, turn off, and then pull the battery
3. While battery is out, plug charger back in and wait for the battery icon with the question mark.
4. Reinsert the battery (results will vary here, mine comes up as 5% for some reason)
5. Unplug the charger and then plug it back in, it should show as 100% now
6. Turn on while plugged in, wait until fully booted and then unplug from charger (it should read as 100% or 99%, depending on how your battery gauge works)
This is just what worked for me, I am running Navalynt's pi-crust (based on AT&T 4.5.91) so please be careful and research if there would be any issues with other ROMs
OpsRJ said:
Hi guys, when i try to charge my battery its stop charging with 90% and never goes beyond that. It starts to happen 2 weeks ago.
Any help would be great to fix it.
Thanks,
Click to expand...
Click to collapse
wrenchmonkey26 said:
Boot into recovery, then go to advanced and reset battery stats, then reboot. Use your phone until the battery dies then fully recharge. If this doesn't fix the issue, you may have a bad battery.
Sent from my GT-I9100 using XDA Premium App
Click to expand...
Click to collapse
DellXCD35user said:
Sometimes the phone battery monitoring gets out of sync and the remedy is to recalibrate the battery.
You can either try one of the available apps in the Android Market or you can do some manual steps available online(just search for Android Battery Recalibration).
Here is one example, scroll down to Battery Calibration section: http://www.darkyrom.com/community/index.php?threads/guide-battery-life.2551/
Click to expand...
Click to collapse
I have a problem.
Since I bought a 1350 mAh battery for my Xperia Mini Pro, my mobile don't show me the right battery status
When I tried charging it first time it stucked by 81% and didn't charged more.
And now my mobile doesn't charge more then 79% and always shut down by itself.
Then I tried to use my old battery again (which now doesn't load more 86%) und stucked there. Like 3-4 hours just 86% when I used it. Then it shutted down.
Does anyone know how to help me?
Wipe battery stats.
Then charge it full without a hold:good:
piousheart said:
Wipe battery stats.
Then charge it full without a hold:good:
Click to expand...
Click to collapse
So when my mobile says 100% it is fully charged? Without stucks or something? xd
Wipe the battery stats in CWM
Entre cwm
Go to advanced - wipe battery stats.
Sent from my SK17i using XDA App
Wipe battery stats and calibrate battery (apps from Google Play) after the full charge
Can you Show me a good calibrate app?
I use BatteryCalibration from Google Play and it works perfectly!
I have wiped battery stats but after that I wasn't able to use my new battery normally.
It always shutted down although I had full charged.
Anyone know how to help me?
So many times it was here and still same. delete batery stats is just myth. If you dont belive go check source code and good luck.
And yeah, if you have problem battery like this just try charge batery to full (ignore % on mobile and keep battery about 2 hours on charger then you discharge and you will see. If dont help few cycle there be problem with battery. But wipe stats even in 1 day of month on midnight cant solve self this. Btw this kind of problem i saw on many older phones w/o android and also working this.
Hey and tell me, what exactly doing this calibrate apps? Some kind of placebo effect or changing chemistry in battery?
Sent from my ST15i using xda app-developers app
Wipe battery in cwm. if you have cwm
gửi từ sony ericsson s312 của tôi
This is a simple way to increase the battery life in cyanogenmod... this worked for me,..
1. Goto cwm and clear the battery stats
2. Charge the phone to 100% (make sure it is 100% by checking the battery status..)
3. NOw allow it to completely discharge ... do not connect the charger until the phone is shutdown automatically...
4. Once the phone turned off due to complete draining of the battery, charge it and use it normally..,
hope it helps
i have a better idea, bring powerbank 5200ma or up, when u go out. ur device will not run out battery even on hard gaming all day long. like i did
antr34 said:
i have a better idea, bring powerbank 5200ma or up, when u go out. ur device will not run out battery even on hard gaming all day long. like i did
Click to expand...
Click to collapse
is that a battery?? how much is the cost?
is that a battery? yes n no
yes, because it need to be charged
no, because its not a spare battery that u can plug it to ur device
it's a portable charger, in here indonesia it cost me Rp310000 or around $32
m4nz said:
This is a simple way to increase the battery life in cyanogenmod... this worked for me,..
1. Goto cwm and clear the battery stats
2. Charge the phone to 100% (make sure it is 100% by checking the battery status..)
3. NOw allow it to completely discharge ... do not connect the charger until the phone is shutdown automatically...
4. Once the phone turned off due to complete draining of the battery, charge it and use it normally..,
hope it helps
Click to expand...
Click to collapse
And how will wiping battery stats help??? It basically does nothing to improve battery life.
hmnk said:
And how will wiping battery stats help??? It basically does nothing to improve battery life.
Click to expand...
Click to collapse
yep, maybe it doesnt help but it work for me
1st charge 100% while phone is on
2nd reboot to cwm n wipe battery stats
3rd turn the phone off then charge it to 100%, cause it will tell u that ur battery isnt full yet (charge it about 20 minutes or more)
4th turn it on while still charging
5th unplug the charger n use ur phone as usual
antr34 said:
yep, maybe it doesnt help but it work for me
Click to expand...
Click to collapse
If it doesn't help, then how does it work???
I'm not trying to argue here, I'm just saying that wiping the stats won't help improving battery life. So if you say so, on what basis?
Anyways, cheers!
not improving battery life but, correcting current battery stats. it happen when u often switch rom n restore from cwm then u feel like ur battery drain more quickly than usual, so i tried the method i post earlier n it works
hmnk said:
If it doesn't help, then how does it work???
I'm not trying to argue here, I'm just saying that wiping the stats won't help improving battery life. So if you say so, on what basis?
Anyways, cheers!
Click to expand...
Click to collapse
The battery stat is wiped to calibrate the battery... We may have to calibrate the battery after every rom install..
Sent from my WT19i using xda premium
Hello. I've been charging my phone the whole night and it only got to 94%. After I restarted the phone, the battery was at 81%. Does anyone knows what's wrong? Thanks.
markslo112 said:
Hello. I've been charging my phone the whole night and it only got to 94%. After I restarted the phone, the battery was at 81%. Does anyone knows what's wrong? Thanks.
Click to expand...
Click to collapse
A little more info would be nice. What rom are you using? Do you have root permissions? Are you s-off?
The first solution is:
On OVO 3D sometime if battery is charged to 100% he starts to use battery power instead of charger so if the light is green you need just to connect the charger again and it will start to charge again.
And the second:
After you installed some kind of ROM you need to calibrate the battery again. You can do by discharging your phone to 3-5% and then charge it to the full. You need to repeat this process few time and then you have calibrated battery.
Sorry but i forget to say that before recharging you need to delete old Battery stats
irumora said:
The first solution is:
On OVO 3D sometime if battery is charged to 100% he starts to use battery power instead of charger so if the light is green you need just to connect the charger again and it will start to charge again.
And the second:
After you installed some kind of ROM you need to calibrate the battery again. You can do by discharging your phone to 3-5% and then charge it to the full. You need to repeat this process few time and then you have calibrated battery.
Sorry but i forget to say that before recharging you need to delete old Battery stats
Click to expand...
Click to collapse
The first thing is correct. When the phone is fully charged the charging stops and the phone uses power from the battery.
As for your second statement - you are partly right. Even though most developers say the same thing you said I found the battery calibration is the best way to get the most from your battery. I tried everything that developers suggested and it didn´t work so well. Battery calibration did the trick - now my battery life is great
Anker batteries seem to work the best
Hey. Thanks for the replies. I'm using the 4EXT recovery and KingCobra3D - ICS 1.6 ROM. The thing is that my phone doesn't even charge up to 100%. Is it necessary to discharge the phone to 1-5% and then charge it to full and then calibrate via recovery or can I just calibrate the battery without having to discharge it first?
Also, I have root on my phone and S-ON.
My anker battery has reported like 4000 charge since I got it and I tried using the calibrate app but it still reports the same after a few cycles? It should be reporting 1900.
Sent from my Evo V 4G using Tapatalk 2
markslo112 said:
Hey. Thanks for the replies. I'm using the 4EXT recovery and KingCobra3D - ICS 1.6 ROM. The thing is that my phone doesn't even charge up to 100%. Is it necessary to discharge the phone to 1-5% and then charge it to full and then calibrate via recovery or can I just calibrate the battery without having to discharge it first?
Also, I have root on my phone and S-ON.
Click to expand...
Click to collapse
If you don´t use battery calibration you should go into recovery and wipe battery stats. Then boot up and fully charge the phone and let it discharge to 5-15%. Charge it to full and that should be it.
If you use battery calibration just charge to full, enter calibration app, hit calibrate and that is it
donkeykong1 said:
If you don´t use battery calibration you should go into recovery and wipe battery stats. Then boot up and fully charge the phone and let it discharge to 5-15%. Charge it to full and that should be it.
If you use battery calibration just charge to full, enter calibration app, hit calibrate and that is it
Click to expand...
Click to collapse
Okay the phone charged up to 100% but it took ages. I've downloaded the Battery Calibration app from the Market and hopefully everything's gonna be well now.
I have battery life issue too. I will try battery calibration.
Hey everyone
I am having a problem with my battery drain.A few days back my battery was fine i am using lg LTE 2 phone with a 2150 mAh battery. Overnight the max drain was 3-5 % max but now its like 60-70% overnight and when i wake a up the mobile is hot like its constantly been using. Before i go to bed i clear the ram stop all applications then go to sleep but still drains i even restarted the phone a couple of times still the same
Help please! :crying:
usama11 said:
Hey everyone
I am having a problem with my battery drain.A few days back my battery was fine i am using lg LTE 2 phone with a 2150 mAh battery. Overnight the max drain was 3-5 % max but now its like 60-70% overnight and when i wake a up the mobile is hot like its constantly been using. Before i go to bed i clear the ram stop all applications then go to sleep but still drains i even restarted the phone a couple of times still the same
Help please! :crying:
Click to expand...
Click to collapse
As you are saying that your mobile seems "hot"
First you need to confirm that its charger/device issue or only with battery.
First do battery calibration with this method: (In this method you need custom recovery for your device
This may help you
http://forum.xda-developers.com/showthread.php?t=1616598
Dont forget to thank him there on his thread.
IMPORTANT: You can skip this step>> "Wait 20 min after you are sure it is 100% (phone should stay plugged in)" - As i dont know much about LG devices and their batteries
Now some advice from me-
If you can cover it >>> Never charge battery again and again before 15 or 20%
Always charge your battery to 100% at once and use your device till 15% or less than 15% and then again charge it full and so on...
This will make your battery backup good as well for battery life
usama11 said:
Hey everyone
I am having a problem with my battery drain.A few days back my battery was fine i am using lg LTE 2 phone with a 2150 mAh battery. Overnight the max drain was 3-5 % max but now its like 60-70% overnight and when i wake a up the mobile is hot like its constantly been using. Before i go to bed i clear the ram stop all applications then go to sleep but still drains i even restarted the phone a couple of times still the same
Help please! :crying:
Click to expand...
Click to collapse
If you are on a custom ROM, try wiping cache and dalvik and battery stats...could help.
(<---Remember to Thank me if this helps! :good
The Dork Knight Rises said:
If you are on a custom ROM, try wiping cache and dalvik and battery stats...could help.
(<---Remember to Thank me if this helps! :good
Click to expand...
Click to collapse
Yes i am using a custom ROM i will do these steps and post the results Thanks
Mohitash said:
As you are saying that your mobile seems "hot"
First you need to confirm that its charger/device issue or only with battery.
First do battery calibration with this method: (In this method you need custom recovery for your device
This may help you
http://forum.xda-developers.com/showthread.php?t=1616598
Dont forget to thank him there on his thread.
IMPORTANT: You can skip this step>> "Wait 20 min after you are sure it is 100% (phone should stay plugged in)" - As i dont know much about LG devices and their batteries
Now some advice from me-
If you can cover it >>> Never charge battery again and again before 15 or 20%
Always charge your battery to 100% at once and use your device till 15% or less than 15% and then again charge it full and so on...
This will make your battery backup good as well for battery life
Click to expand...
Click to collapse
Yes my mobile seems hot and i always try to charge it upto 100%. One more thing does it damage they battery in anyway if you leave the charger on after the battery is full?
usama11 said:
Yes my mobile seems hot and i always try to charge it upto 100%. One more thing does it damage they battery in anyway if you leave the charger on after the battery is full?
Click to expand...
Click to collapse
According to the Battery Doctor app, you shouldn't leave your phone on charge for more than 9-10 hours(MAX), otherwise it WILL harm your battery.
You should try hibernating some of those apps with Greenify.
Sent from my One X using xda app-developers app
BetterBatteryStats
Use better battery stat (check play store) or similar app to track draining application.
In this way you can find a culprit
usama11 said:
Yes my mobile seems hot and i always try to charge it upto 100%. One more thing does it damage they battery in anyway if you leave the charger on after the battery is full?
Click to expand...
Click to collapse
Yes, over charge can reduce battery life.