Database Users

Battery dies very fast, how to monitor tasks better?

My battery on the HTC Pure went from 45% charge to 2% auto-shutoff within a matter of 1.5 hours without any usage on my part. In fact, I had rebooted it and not touched it since.
The thing has been dying a lot faster after I installed some programs from Marketplace. I'm wondering if they are doing background processes that zap its power or what.
Any recommendations on monitoring what's going on in the background???

try to calibrate battery
(thanks helgee):
1. Discharge the device. Absolutely.
2. Take out battery for 60 sec.
3. Put the battery back. Don't switch on the device!
4. Charge the device by normal way (not by usb!) to the full state (green LED).
5. Take out battery again for 60 sec.
6. Put the battery back.
7. Switch on the device.

How can you discharged your battery? I didn't find a option on my Touch Diamond 2.

Ciedric said:
How can you discharged your battery? I didn't find a option on my Touch Diamond 2.
Click to expand...
Click to collapse
You don't do this unless you want to damage the battery.

crypted said:
My battery on the HTC Pure went from 45% charge to 2% auto-shutoff within a matter of 1.5 hours without any usage on my part. In fact, I had rebooted it and not touched it since.
The thing has been dying a lot faster after I installed some programs from Marketplace. I'm wondering if they are doing background processes that zap its power or what.
Any recommendations on monitoring what's going on in the background???
Click to expand...
Click to collapse
Exactly the same thing here, after installing some apps from Marketplace, the batt started to drain very fast. Don't know why yet. The apps installed are:
Mobeedo
Bing
Pocketnow
The Daily News
I've removed Mobeedo, The Daily News and Pocketnow just to test if they were doing something.

abzza said:
try to calibrate battery
(thanks helgee):
1. Discharge the device. Absolutely.
2. Take out battery for 60 sec.
3. Put the battery back. Don't switch on the device!
4. Charge the device by normal way (not by usb!) to the full state (green LED).
5. Take out battery again for 60 sec.
6. Put the battery back.
7. Switch on the device.
Click to expand...
Click to collapse
I did this and it worked, now it appears to last even more than before.
Thanks a lot.

Hi,i´ve tried that 2 times and no result,can you help me with this,less than a day with battery is very sad...!
I´ve disabled the sense and i´m running the predifinicion of windows 6.5!
Big hug!

hi
http://www.batteryupgrade.com/shopB...rtmentProductId/54290922/shopGroupId/40547521
Tryied and loved it...!

Fast battery discharge
I had this very same problem. I had it with WM 6.1 and the Pure. Both due to the same app. BING is your problem. If you have a memory card in your phone it causes it to be constantly accessed instead of just on demand such as with storing pictures from camera. This is a battery life killer. Ditch BING, remove your storage card, save what you want to a PC and wipe it. After that put your saved files back on the card and put back in phone. This should stop the battery drain issue. Hope this helps.
ALSO: Some people swear by the battery drain and charge thing...others do not. Use it if you like but without getting rid of BING or finding a way to keep it from accessing your memory card the difference you will see will be barely noticeable.

Radio!~
u can change the radio , then u will get better.
my radio is 4.49.25.17

wipe battery stats

guys i have been getting very poor battery after i flashed my phone multiple times on a day...
i already tried the calibration app but it did nothing....
now how to wipe battery stats manually??

http://lmgtfy.com/?q=android+wipe+battery+stats+manually
http://forum.xda-developers.com/showpost.php?p=12697960&postcount=3

clarkkov said:
I love lmgtfy! makes me laugh every time!
[email protected]:
When you recalibrate your battery, it takes a few life cycles for the battery to stabilize and for Android to get an accurate reading. First life cycle is alway short. Of course, don't play with ROMs so much it may damage your phones read only memory.
I will post my battery life soon, I'm still waiting for the battery to deplete, I haven't recharged my phone in 4 days now after I calibrated my battery.
Click to expand...
Click to collapse
Wow 4days is huge,iam getting hardly 1day battery after calibrating yesterday....
Actually i removed my phone before getting the 100% notification....
So should i wait for battery to improve???
By the way,when did you calibrate???
Should i calibrate again????
If this wont work i will try terminal emulator method...
So in this method do we need to charge 100% or discharge completely??
Some precautions or just write those commands at any point of charge???
Iam wondering how to thank from the xda app
Thnx to both of u
Sent from my GT-I5801

Same problem here.
Battery drained from 100% to 60% in 3 hours, then to 15% after 5 hours. phone super hot! Widget showed temp 42°C !
Not even used the phone for more than 15 min! REALLY!
Then calibrated before 3 days, now a max of 1 day battery backup only.
Plz help.
And 1 life cycle means I must let the phone charge 100% then let it discharge till it's switched off.
And I should repeat the cycle.correct me if I am wrong.
And I have the habit of not charging to 100% in a single charge session, 2-3 breaks, should I change it?

clarkkov said:
If your phone is hot without you using it, something is running in the background, that shouldn't. Which ROM are you using and which tweaks/fixes have you applied?
One battery life cycle means battery drain from 100% (fully charged) to 1% (fully discharged). Your phone does not have to turn itself off, but make sure it is at 1% when you begin to charge it again. This is important only for a few cycles after calibration, afterwards you are free to charge it as you wish, but while calibrating it's highly recommended that you don't interrupt the charging process (4Hrs).
Click to expand...
Click to collapse
I am using rooted jpd from samfirmware, no fixes except sdcard speed fix, previously it used to give a good battery backup.
And apps do run in background.
Should I set autokill level to high in task killer?
And I will take care of charging.
Thanks for support.

on DDJP2.. getting a horrible backup since i have updated thru KIES. generally on jg6 used to get almost 1.5 days which has come down to 12-16 hours now. trying to calibrate my battery with app 'battery calibration'.. calibrated once.. but still no change. read somewhr that we get the same backup for first few times even after calibrating.. but to get sure i am writing down my process.. plz chk if m doing right or not ..
1. plug in phone with charger
2. wait till 100%.
3. press battery calibration or delete batterystat.bin with the help of root explorer.
4. unplug charger and use it till it discharges completely.
5. charge again to 100%.
plzzzz chk and tell.

plzz someone reply.

I have a question about batery drain. Apps on backgroung are drainning lot of batery? May i have to stop them always?
Send from my Lestatious 1.7 using XDA premium

clarkkov said:
Yes.
You need to be aware that wireless services are draining the battery the most. If you are not using 3G - switch it off, same with BT and WIFI. Widgets that update frequently also drain the battery fast, background data, auto sync services/features are battery killers, too.
Click to expand...
Click to collapse
Thanx for the reply.. i have calibrated once more.. but already showing 80% after hardly 2 hrs.. no clue whats going on... ppl with JP2 shud come up with thr battery backup to get confirmed.

and last thing am waiting for is that someone said .. battery life is worse for first few cycles after the calibration... thats the last hope... :'(

clarkkov said:
Yes.
You need to be aware that wireless services are draining the battery the most. If you are not using 3G - switch it off, same with BT and WIFI. Widgets that update frequently also drain the battery fast, background data, auto sync services/features are battery killers, too.
Sent from the other side
Click to expand...
Click to collapse
Thx for the aswer, i thought that all the background data are drain lot of battery. I'll try to calibrate and switch off all the thing i can and see if my battery lives more time

Hey there,
scince I use BatteryLeftWidget, I can see that my battery voltage only reches 4171mVolt.
So, batterystat.bin delete doesnt help, so anyone an idea where to put the 4200mV ?

[Q] Battery charging only up to 85%

Hi,
I've recently replaced my battery and now it is not charging fully to 100% but only to 85%. Sometimes it displays it is fully charged but after a minute the percentage dropped to 85%. I've already tried multiple chargers with no result. The only thing that works is bump charging. It looks like the battery is just working fine but the displayed percentage is not right. Is there a way to 'reset' this statistic? Removing the battery.bin didn't do anything for me.
Is there a way to check if the battery is really fully charged despite the wrong displayed percentage?

Faeshaas said:
Hi,
I've recently replaced my battery and now it is not charging fully to 100% but only to 85%. Sometimes it displays it is fully charged but after a minute the percentage dropped to 85%. I've already tried multiple chargers with no result. The only thing that works is bump charging. It looks like the battery is just working fine but the displayed percentage is not right. Is there a way to 'reset' this statistic? Removing the battery.bin didn't do anything for me.
Is there a way to check if the battery is really fully charged despite the wrong displayed percentage?
Click to expand...
Click to collapse
To fix what you are doing you have to be rooted.
1. Root your n4
2. Download root browser from playstore
3. Go to data/system directory and delete batterystats.bin
4. Accept superuser access
5. Reboot and let the battery drain till 0%
Anyway, I don't know if it will be a battery calibration issue, because if u had to replace your previous battery maybe your phone doesn't manage battery well and destroy them... Try, report, and we will make conclusions

luiseteyo said:
To fix what you are doing you have to be rooted.
1. Root your n4
2. Download root browser from playstore
3. Go to data/system directory and delete batterystats.bin
4. Accept superuser access
5. Reboot and let the battery drain till 0%
Anyway, I don't know if it will be a battery calibration issue, because if u had to replace your previous battery maybe your phone doesn't manage battery well and destroy them... Try, report, and we will make conclusions
Click to expand...
Click to collapse
I just deleted it, it's worth a try!
The weird thing is bump charging will result in a 100% charge and the battery seems to work normally (20hours of battery time with normal use).

luiseteyo said:
To fix what you are doing you have to be rooted.
1. Root your n4
2. Download root browser from playstore
3. Go to data/system directory and delete batterystats.bin
4. Accept superuser access
5. Reboot and let the battery drain till 0%
Anyway, I don't know if it will be a battery calibration issue, because if u had to replace your previous battery maybe your phone doesn't manage battery well and destroy them... Try, report, and we will make conclusions
Click to expand...
Click to collapse
It will be a battery calibration issue since that file only stores the statistics of apps. It gets deleted upon reboot. So this won't affect the measurements in any way.
Sent from my Nexus 4 using Tapatalk

Faeshaas said:
Hi,
I've recently replaced my battery and now it is not charging fully to 100% but only to 85%. Sometimes it displays it is fully charged but after a minute the percentage dropped to 85%. I've already tried multiple chargers with no result. The only thing that works is bump charging. It looks like the battery is just working fine but the displayed percentage is not right. Is there a way to 'reset' this statistic? Removing the battery.bin didn't do anything for me.
Is there a way to check if the battery is really fully charged despite the wrong displayed percentage?
Click to expand...
Click to collapse
Connect the charger to the Nexus 4, then insert the plug.
Press the power button and hold it until the device turns on. Immediately after this, press and hold the Volume Down key, not releasing the power button. Appears on the screen Start, circled arrow.
Pressing the Volume Down key, select Power off and activate it by pressing the power button.
When the phone is turned off, unplug the charger and plug it in again. then turn on the phone.

Both solutions didn't work for me. Is there a way to confirm that even if Android displays a value of 85% the battery is fully charged? Because I don't care that much wrong percentage is displayed, I just wanna know for sure the battery is ok.

Faeshaas said:
Both solutions didn't work for me. Is there a way to confirm that even if Android displays a value of 85% the battery is fully charged? Because I don't care that much wrong percentage is displayed, I just wanna know for sure the battery is ok.
Click to expand...
Click to collapse
you should try reflashing your rom

Wipe cache, dalvik cache and battery stats in recovery then fix permissions and reboot.

Puneet Singh Chauhan said:
Wipe cache, dalvik cache and battery stats in recovery then fix permissions and reboot.
Click to expand...
Click to collapse
As I already said in the 3rd post here. That is absolutely useless.
Sent from my Nexus 4 using Tapatalk

luiseteyo said:
To fix what you are doing you have to be rooted.
1. Root your n4
2. Download root browser from playstore
3. Go to data/system directory and delete batterystats.bin
4. Accept superuser access
5. Reboot and let the battery drain till 0%
Anyway, I don't know if it will be a battery calibration issue, because if u had to replace your previous battery maybe your phone doesn't manage battery well and destroy them... Try, report, and we will make conclusions
Click to expand...
Click to collapse
Or restart your phone and battery stats will reset.

[Guide] Battery calibration for s3 mini

Some say battery calibration is a myth, I'm quite sure it works!
You can give that a try after flashing a new rom to improve your battery life! :victory:
(the guide is tested but still i'm not responsible for any demage to your phone)
1. you need a recovery to access a specific file
twrp works
2. you need the xposed app: disable low battery warning (or a likely name)
(for that you can fully dischage your phone)
3. you need a battery discharger app this one: Fast discharge
(for that you can faster discharge)
4. you activate the xposed app and discharge your battery with the app (set the app to discharge to 0%)
(i wouldn't activate the light or the vibration since i don't know if they can overheat for discharging the battery)
5. set the governor to performance to have a faster discharge
6. your phone will kind of be fully discharged and just turn off at maybe 5% battery or later
7. charge your phone just plug it in until it's 100%
(i couldn't boot like that to the system so i had to reconnect after 100% charging which isn't the right way to calibrate battery)
(so if you can then boot whilst charging or plug back in after booting on 100% quickly)
8. enter the recovery and search for this file:
> /data/system/ batterystats.bin
then reboot
thats all!

More info about the myth here. I only calibrate my bat when I feel it needs to be calibrated, even being a myth:laugh:
P.S: or you can download a battery calibration app from Playstore.

The myth of "calibrating the battery makes it last longer" was dispelled by Google's own engineers. All calibrating the battery does is wipe the battery statistics file that keeps the usage history you see in settings. This is something that happens when the device nears 100% charge anyway so its pretty much useless to do it.
As for "the right" way to calibrate the battery, the OP clearly has no idea what he's talking about... its the battery usage history file, there are 2 ways to delete it - manually or just charge the battery to 100%, neither of those does any harm to the device and neither is better than the other seeing as this whole thing of calibrating the battery is utter nonsense.
To which end I don't really see a reason or need for this thread.

Note 3 Quick Battery Drain (FIX)(Requires TWRP)

Disclaimer: This method has a chance of messing up your phone, burning your livestock, pillaging your land & starting a war with North Korea. Use with caution
First off let me explain what my Note 3 was doing.
The battery would drain in less than 2 hours & WiFi would drain it even more quickly. I figured it was a TouchWiz problem so I switched to an AOSP base ROM. That did not fix it either.
So after many many fixes I tried something different.
I'm unsure if this will work for everyone, the models I performed this on are the SM-N900T & SM-N900A
Step 1: Charge to 100%
Step 2: Turn on NFC, WiFi, Data, Bluetooth, Flashlight & set brightness to 100%. Now wait for it to die.
Step 3: Reboot it into the OS(it may say 2% even though it died earlier when it said 1%), then let it die again.
Step 4: Repeat Step 3 until it automatically reboots upon starting. Once this happens proceed to step 5.
Step 5: Boot into TWRP, it may show no battery indicator(it didn't for me) or it may.
Step 6: In TWRP tap reboot into recovery
Step 7: Repeat Step 6 until it doesn't even boot into recovery.
Step 7: Charge it & You're done.
Now my Note lasts 6 hours with WiFi on!
I can't promise this will work for everyone, but if it helps even 1 person it's worth it.
Let me know if it helps!

Playing with fire totally draining a battery .
This by the way is not the forum for your phone model .

JB3783 said:
First off let me explain what my Note 3 was doing.
The battery would drain in less than 2 hours & WiFi would drain it even more quickly. I figured it was a TouchWiz problem so I switched to an AOSP base ROM. That did not fix it either.
So after many many fixes I tried something different.
I'm unsure if this will work for everyone, the model I performed this on is the SM-N900T
Step 1: Charge to 100%
Step 2: Turn on NFC, WiFi, Data, Bluetooth, Flashlight & set brightness to 100%. Now wait for it to die.
Step 3: Reboot it into the OS(it may say 2% even though it died earlier when it said 1%), then let it die again.
Step 4: Repeat Step 3 until it automatically reboots upon starting. Once this happens proceed to step 5.
Step 5: Boot into TWRP, it may show no battery indicator(it didn't for me) or it may.
Step 6: In TWRP tap reboot into recovery
Step 7: Repeat Step 6 until it doesn't even boot into recovery.
Step 7: Charge it & You're done.
Now my Note lasts 6 hours with WiFi on!
I can't promise this will work for everyone, but if it helps even 1 person it's worth it.
Let me know if it helps!
Click to expand...
Click to collapse
You should always calibrate your battery when flashing to a new ROM. There are plenty of apps that do this which is I believe what this method accomplished.

​
ShaDisNX255 said:
You should always calibrate your battery when flashing to a new ROM. There are plenty of apps that do this which is I believe what this method accomplished.
Click to expand...
Click to collapse
yes but whwn ur battery is a bit damaged the calibrators dont work, its just a way without calibrators, support him not blame him

JJEgan said:
Playing with fire totally draining a battery .
Click to expand...
Click to collapse
Yes it is I had forgotten to add a disclaimer. But if you are desperate you will try anything.
JJEgan said:
This by the way is not the forum for your phone model .
Click to expand...
Click to collapse
This is the Note 3 forum, says so right on the top. This method works the AT&T model aswell. Why create 2 separate posts in two different forums when this method plausibly works on more than the two models it has been tested on?

yenkoPR said:
​
yes but whwn ur battery is a bit damaged the calibrators dont work, its just a way without calibrators, support him not blame him
Click to expand...
Click to collapse
Wasn't my intention to blame him or anything. Just wanted him to know that there are a few methods out there in case he would have wanted to try that instead or for future reference.
I think I learned something today too, that calibrators don't work if the battery is completely damaged, which is to be expected

ShaDisNX255 said:
Wasn't my intention to blame him or anything. Just wanted him to know that there are a few methods out there in case he would have wanted to try that instead or for future reference.
I think I learned something today too, that calibrators don't work if the battery is completely damaged, which is to be expected
Click to expand...
Click to collapse
its okay bro, and yes it happened to me, i did the same method he posted here, it works but it works best with anew battery, now u know

ShaDisNX255 said:
You should always calibrate your battery when flashing to a new ROM. There are plenty of apps that do this which is I believe what this method accomplished.
Click to expand...
Click to collapse
No they cannot calibrate the battery .
The battery calibrates itself .
See Battery stats Google engineers post .

Holy crap, i've been draining the battery completely for the past 3 hours and the recovery still says 0%!

acompres said:
Holy crapy, i've been draining the battery completely for the past 3 hours and the recovery still says 0%!
Click to expand...
Click to collapse
Get a new battery, i bought 2 samsung batteries on ebay for 16$ and also you might test the charger, my wall charger (not the usb cable, the one square) was draining out the battery instead of charging it and it messed it up, had to buy nee charger and a new battery. Also found a deal 12$ for samsung wall charger and car charger with 2 usb 2.1 amp

Hello!
Guys, something is draining my battery while phone is powered off. Phone is slightly hot (around camera) also while turned off.
Thx for help.

can you help me?
Sorry you do not know how I do this if my phone says it has 40% battery charge and after it turns off, I do not know how to download everything if it only reaches 40% and it goes off when I put it in the charger says it has 0% Do you know how to do the precess? What is that or should I buy another battery?

First down load a battery calibration app from play store .
(This will not calibrate battery .)
Run the calibrator it will delete battery stats .bin
Use phone recharge if still a problem buy new battery .

Well you may notice that battery calibrator ,like the AccuBattery wont work on N3 so there's probably no way to calibrate it because of unsupported hardware

You cannot use any app to calibrate .
Calibration is a function of the battery and using it .
See multiple posts on the subject .

Not much changed , i see your method was once reccomended for users to do once a month . Btw is it neccessary to force it boot up to recovery manually after selecting "reboot to recovery " from TWRP without success ? Below is the time when my battery decrease from 20 to 10%

That was to be used as a one off to eliminate one very slight possible fault.
Calibration posts abounded on xda until Google engineer Dianne Hackborn put the correct information in a blog .
Delete battery stats bin ( that all a calibration app does)
Does not and cannot calibrate a battery .