Develop Bugs

[Q] I have a problem with battery

Hy guys... i have this phone and i've a problem with battery
the percentage of battery does not discarge in uniform way.
ex i have 100% of charge and after 2 minutes the charge goes to 94 for a long time, then direcly goes to 80% and so on...
i have the same problem with galaxy ace
anyone have a solution?
thanks and excuse for my bad english

If you have CWM Recovery in your device, go to it and select "Wipe Battery Stats" while having a full battery to see if it helps!

TechnoZombie said:
If you have CWM Recovery in your device, go to it and select "Wipe Battery Stats" while having a full battery to see if it helps!
Click to expand...
Click to collapse
i've alredy done...
do you have same problem? or your discarge is uniform?

anyone have the same problem?!?!

I had this.
The thing is its losing track of your battery % when in recovery and flashinh another rom, so it will drop 20% in 2 minutes and be stuck for 2 hours on the same percentage.
It lasts as long as nprmal, but it indicates wrong.
Fixed it by charging while the phone is off as much as possible, then wipe battery stats, and let it go to 0% till it cant turn on. Then charge to 100%, while phone off, and you are done.
Sent from my GT-S5660 using xda premium

play.google.com/store/apps/details?id=com.nema.batterycalibration&hl=it

voetbalremco said:
I had this.
The thing is its losing track of your battery % when in recovery and flashinh another rom, so it will drop 20% in 2 minutes and be stuck for 2 hours on the same percentage.
It lasts as long as nprmal, but it indicates wrong.
Fixed it by charging while the phone is off as much as possible, then wipe battery stats, and let it go to 0% till it cant turn on. Then charge to 100%, while phone off, and you are done.
Sent from my GT-S5660 using xda premium
Click to expand...
Click to collapse
thanks, i will try already this option...

Mugen 4500 mAh battery not showing proper stats

Dear all, somehow I am experiencing an odd behavior with the battery stats.
Once the battery stat reaches 1%, the phone still remains on for maybe another 15-20min of use until it goes off. Is there anything wrong with the battery, my settings or not proper calibration?
Sent from my GT-N7000 using Tapatalk 2

UPDATE:
Since my first post on 1% battery my note is still running. Playing music all time with switched off screen.....
Really strange behavior
Sent from my GT-N7000 using Tapatalk 2

Just a calibration issue I would think. Try resetting the battery data in recovery and also use Battery Monitor Widget to further calibrate it.
Sent from my GT-N7000 using Tapatalk 2

iStep83 said:
Dear all, somehow I am experiencing an odd behavior with the battery stats.
Once the battery stat reaches 1%, the phone still remains on for maybe another 15-20min of use until it goes off. Is there anything wrong with the battery, my settings or not proper calibration?
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
i was having similar problems with mine, i tried turning the phone off, removing the battery and then restarting the phone and charging to a full.....that somehow fixed the issue for me....and also as described above use a battery monitor widget for correct stats.

Did you discharge the battery fully first?
Sent from my GT-N7000 using Tapatalk 2

not fully, about 20% charge was left in it, but i guess it doesnt matter as long as you take the battery out and then recharge it back for a good 12 hours or so- supposidly longer charge cycles = more accurate stats.

illmatic75 said:
not fully, about 20% charge was left in it, but i guess it doesnt matter as long as you take the battery out and then recharge it back for a good 12 hours or so- supposidly longer charge cycles = more accurate stats.
Click to expand...
Click to collapse
Ok will try that now. Thanks!
Sent from my GT-N7000 using Tapatalk 2

What is *#0228# for??

Sorry repost..
I have tried to press *#0228# on phone dialer n it shows up my battery stat? What is that for?
N when i choose quick start, it draining my battery? Why?? Can anybody help me??
Sent from my GT-N7100 using Tapatalk 2

http://forum.xda-developers.com/showthread.php?t=1520115
All the codes

Thx man.. but i Cant find explanation why suddenly my batt draining about 30% after preessing it.
I wonder if someone can answer it.. thxxx
Sent from my GT-N7100 using Tapatalk 2

Ruck fules said:
Thx man.. but i Cant find explanation why suddenly my batt draining about 30% after preessing it.
I wonder if someone can answer it.. thxxx
Sent from my GT-N7100 using Tapatalk 2
Click to expand...
Click to collapse
Neither do i.
But once you select the test, the % will stay there for a long time before dropping again.

Tried the code and pressed quick start and my battery lost charge from 48% to 25%. Weird...

It that for battery recalibration? Or just a code to suck the battery.

nicedino said:
It that for battery recalibration? Or just a code to suck the battery.
Click to expand...
Click to collapse
Its there for recalibration of the battery.
After you flash a new kernel, you should at least use and then load your battery 5 days. Within this time you may use the code as follows.
Charge up to 100%, then use the code and turn of the device and again charge the phone untill its full. Turn it on and use it.
After 4 or 5 days you will recognice, that these drops of the load will not be as big as before, or even been dismissed.
Have fun!

Ottschke said:
Its there for recalibration of the battery.
After you flash a new kernel, you should at least use and then load your battery 5 days. Within this time you may use the code as follows.
Charge up to 100%, then use the code and turn of the device and again charge the phone untill its full. Turn it on and use it.
After 4 or 5 days you will recognice, that these drops of the load will not be as big as before, or even been dismissed.
Have fun!
Click to expand...
Click to collapse
I'm not fully convinced that's the proper procedure.
Is there any official documentation on what the quick star command does?
I ask this because lately (I have the galaxy s4 from about 2 months now) the phone dies with battery at about 20% to 30%.
If I hit quick start, it shows 5% but after a reboot it showed 23%.
But soon after that it powered off.
It's like 22% is 0%, and it seems I can't reset it.
Update
I now clicked the quickstart button while keeping the flash led ON with a flashlight program. That seems to have worked because the battery gauge now says 11%.
We'll see how it goes.
Second Update
Nothing. I think the battery is broken.
It dies at about 20%-30% and when the phone restarts, plugged in, it says it's 20%.

Ruck fules said:
Thx man.. but i Cant find explanation why suddenly my batt draining about 30% after preessing it.
I wonder if someone can answer it.. thxxx
Sent from my GT-N7100 using Tapatalk 2
Click to expand...
Click to collapse
That's because "quick start" just LOADS the battery by executing a cpu heavy task. Then it resamples the battery voltage.
Charge the battery (possibly with a slow charge on a 1A or 500mA ac adapter) then disconnect the adapter, when the battery drops off 100%, hist quick start again and charge again.
Eventually it will stabilize. If it will not probably your battery is getting bad.

Zibri said:
I'm not fully convinced that's the proper procedure.
Is there any official documentation on what the quick star command does?
I ask this because lately (I have the galaxy s4 from about 2 months now) the phone dies with battery at about 20% to 30%.
If I hit quick start, it shows 5% but after a reboot it showed 23%.
But soon after that it powered off.
It's like 22% is 0%, and it seems I can't reset it.
Update
I now clicked the quickstart button while keeping the flash led ON with a flashlight program. That seems to have worked because the battery gauge now says 11%.
We'll see how it goes.
Second Update
Nothing. I think the battery is broken.
It dies at about 20%-30% and when the phone restarts, plugged in, it says it's 20%.
Click to expand...
Click to collapse
This causes battery broken

yep.. battery is broken 90%

[Q] New battery problems

Hi guys
recently i bought new battery because my old one used to jump
from 70% to 100% and had really bad battery life.
i replaced the battery and calibrated it and i noticed that the 20% from 100% to 80% goes down realy fast
should i recaibrate the battery?
what should i do? thanks!

It depends on the rom u r using.
All roms except stock based roms have this problem.
Sent from my GT-S5660 using Tapatalk 2

Im using aosp by maclaw studios
the weird thing is that the 70% acts like it 100% and im having really good battery life
from 70%

Its a problem in sumsung charge system.
In custom roms when u full charge battery it is about 80 % charged.
Sent from my GT-S5660 using Tapatalk 2

I think you should charge it when the phone is turned off. I noticed that my phone tells me it is "Charged" when it is turned on. However the actual percentage in Go Power Master is 80%.
Sent from my GT-Xperia S using xda app-developers app

so it has nothing to do with the battery quality and the battery calibration?
the problem will not appear in the stock rom?

Thats if needed. To check if the battery is fully charged, try these step.
1. Charge the when it is running until it says "Charged".
2. Turn off the phone and keep the charger plugged in.
3. The battery image will appear. If it is not full, wait till it full. When it shows 100% then it is fully charged.
Note that powering up the phone takes some significant amount of battery. If the battery is still draining fast. Calibrate may be needed.
Sent from my GT-Xperia S using xda app-developers app

enchanced rom shows 100 percent but still shows charging. So I guess it fully charges

Well the battery level seems to be jumping unusually from time to time . What i do is i wipe the battery stats from cwm , i leave it over night to fully charge without doing anything to it , calibrate the battery with `battery calibration` from playstore , full discharge and full charge again . I do this after each rom that i flash and it seems to do good and seems to point the right amount. Anyway the charge lasts as i hope it lasts , from 1 day if i do stuff with it like some wifi , some messaging , many minutes of calls .... to about 3 days if i do only calls. Cheers

20 minutes at 100% charge.

Hello everyone,
I observed a strange behavior of my arc s , when the phone reaches 100% charge and later when i unplug it my phone spends almost 20 minutes at this point and after some time it starts to discharge ie. it comes down by 1%.
But if i use it hear after it discharges rapidly.
I find this behavior very odd !
Can anyone explain me this behavior ???
Thank you in advance.
Sent from my LT18i using xda app-developers app

Check battery use
Check battery use to see what is consuming the battery
Maybe WIFI and sleep policy,Bluetooth,Network type WCDMA/GSM ,GPS and accounts sync ?
Observe the diagram or the slope in the battery use to see is your battery draining fast or is it normal,also what rom and kernel are you using

Isn't that the normal behaviour of a battery coming from a smartphone? .-. Mine's like.. 20 minutes on 100% before starting going down, and it doesn't affect my overall battery life at all..

!!!!
Phenomzye said:
Isn't that the normal behaviour of a battery coming from a smartphone? .-. Mine's like.. 20 minutes on 100% before starting going down, and it doesn't affect my overall battery life at all..
Click to expand...
Click to collapse
try to change kernel and rom / buy new battery

Im using maxmod ICS(V 1.1) and stock kernel.
Sent from my LT18i using xda app-developers app

kzizo said:
Check battery use to see what is consuming the battery
Maybe WIFI and sleep policy,Bluetooth,Network type WCDMA/GSM ,GPS and accounts sync ?
Observe the diagram or the slope in the battery use to see is your battery draining fast or is it normal,also what rom and kernel are you using
Click to expand...
Click to collapse
I have observed all of that.
Everything is fine, as the display uses the battery predominantly.
My guess is that is a sign for use to change the battery.
And also i see spikes in chart instead of going down the charge goes up and down.
Sent from my LT18i using xda app-developers app

how old is the battery?
how old is the battery ?if the spike goes up that means it is connected to USB and the phone is charging .attached is my battery usage 7 % in 11 hours the slope is continuously going down as it's been unplugged and running on battery only ,phone and battery are a year and half old

The "spikes" you refer to are because your battery isnt well calibrated...
You can charge it fully, use it and when its around 5% charge it again to full. And if you delete the battery stats your battery must sette down over some day or two.
But for a better response you need to upload a picture of your battery stats.
My battery sometimes stays in 100% some minutes, some other times is goes down to 99 very quicky, but its normal for me cause it usually lengths for two days + with normal use

17th_angel said:
The "spikes" you refer to are because your battery isnt well calibrated...
You can charge it fully, use it and when its around 5% charge it again to full. And if you delete the battery stats your battery must sette down over some day or two.
But for a better response you need to upload a picture of your battery stats.
My battery sometimes stays in 100% some minutes, some other times is goes down to 99 very quicky, but its normal for me cause it usually lengths for two days + with normal use
Click to expand...
Click to collapse
Thank you.
I will calibrate and put the graph after usage.
Sent from my LT18i using xda app-developers app

kzizo said:
how old is the battery ?if the spike goes up that means it is connected to USB and the phone is charging .attached is my battery usage 7 % in 11 hours the slope is continuously going down as it's been unplugged and running on battery only ,phone and battery are a year and half old
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Click to collapse
Its a year old.
Yes i totally agree the oly time the graph should go up is when its plugged in and not wen unplugged.
But i sometimes see the spikes when unplugged.
Nevertheless it has not degraded the performance.
Sent from my LT18i using xda app-developers app

i agree with 17_Angel,upload a picture of your battery stats.