[Q] Phone just turn off when it reaches 40% - Galaxy S II Q&A, Help & Troubleshooting

Hi guys,
I wanted to share with you my experience on my device, perhaps some other have the same problem and has solution.
Before I was using 2000mAh battery but it bloat out so I bought a new 1650mAh battery. The problem is that it just turned off when it reaches 40% without even prompting a low batt notification. I thought I bought a defective battery so I purchased a new one again, but it has the same problem. I was using custom roms btw and flashing CM11 nightlies every day or whenever update pops. Does it affects this or should I just recalibrate the device because my old 2000mAh.
Thanks for the help in advance.

deedii said:
Hi guys,
I wanted to share with you my experience on my device, perhaps some other have the same problem and has solution.
Before I was using 2000mAh battery but it bloat out so I bought a new 1650mAh battery. The problem is that it just turned off when it reaches 40% without even prompting a low batt notification. I thought I bought a defective battery so I purchased a new one again, but it has the same problem. I was using custom roms btw and flashing CM11 nightlies every day or whenever update pops. Does it affects this or should I just recalibrate the device because my old 2000mAh.
Click to expand...
Click to collapse
Is this a genuine battery. You could try resetting battery stats or use dorimanx kernel to reset fuel guage.
Thanks for the help in advance.

Well the first battery i bought was just a class A, the second battery I just bought a while ago is genuine and its the same result. I will try to flash stock ROM and see if it still occurs, now I just tried calibrating the battery stats.

gsstudios said:
Is this a genuine battery. You could try resetting battery stats or use dorimanx kernel to reset fuel guage.
Thanks for the help in advance.
Click to expand...
Click to collapse
Don't they say resetting battery stats has only a placebo effect?
I'm having exactly the same problem. I bought two new original batteries and the problem persists. It just doesn't happen with my 2011 original battery.
Thank you

Well i read some articles that returning to stock rom should fix it well im still experimenting on the problem.

deedii said:
Well i read some articles that returning to stock rom should fix it well im still experimenting on the problem.
Click to expand...
Click to collapse
Did you check the battery voltage level just before 40%? If I understand correclty, my guess is that the battery should range from 4.1 to 3.3volts, as it has been specified as 3.7v.
In my case, it was around 3.6 volts when close to 40%, which seems to be a reasonable voltage for 40%. But then it suddenly drops to 3.2v (which I measured with a multimeter, since the phone goes dead at around 40%). I have started to beleive the battery is the problem.
Regards

thunder45 said:
Did you check the battery voltage level just before 40%? If I understand correclty, my guess is that the battery should range from 4.1 to 3.3volts, as it has been specified as 3.7v.
In my case, it was around 3.6 volts when close to 40%, which seems to be a reasonable voltage for 40%. But then it suddenly drops to 3.2v (which I measured with a multimeter, since the phone goes dead at around 40%). I have started to beleive the battery is the problem.
Regards
Click to expand...
Click to collapse
Well sad im no electricity expert, so I dunno how would I measure it. Im considering returning the original batt i purchased, I will see if this still persist. Thanks

deedii said:
Well sad im no electricity expert, so I dunno how would I measure it. Im considering returning the original batt i purchased, I will see if this still persist. Thanks
Click to expand...
Click to collapse
Battery voltage can be measured using apps like cpu-z and go to the battery section. Software readings are slightly less accurate than multimeter but does the job anyway. 3700mV = 3.7V (conversion of mV to V)

Related

Strange battery problem help plz

My phone drains the battery very quickly from 100% to 1% but after reaching 1% it can be used for hours.Last time after the full charge battery dropped from 100-1% in about 2 1/2 hours of use on WiFi but after that it lasted for more than 13 hours on 1% but the Network data, Bluetooth and WiFi was off.
Currently i am running CM7 stable (battery fix is also applied) i was also facing such issues on the stock 2.3.4.
maybe a battery re-calibration can solve this issue?
sspa said:
maybe a battery re-calibration can solve this issue?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1198333
I have done that also followed the steps for charging given in this thread
Sent from my MB860 using XDA App
ibrahimsengul said:
I bought my Atrix 3 weeks ago. My previous device was also another Motorola, Milestone.
When I first started to use Atrix I found that the battery was draining so quickly even I didn’t install any apps yet. It was becoming 1% in 70 minutes with full display and running default apps.
I tried to full battery several times, did factory resets and finally went back to shop. The shop replaced the battery with another new one.
Still it happened same problem. Then they changed my device with another new one. It was same, too.
I would give it back to shop but last time I decided to discharge it until it turns off.
At this point I found that discharging takes long time after it became 1%. For example by heavy using it becomes 1% in 70 minutes, then it takes at least 200 minutes more even I watch videos via Youtube, play games etc.. It means in total it takes at least 4,5 hours with full display and heavy usage. That’s OK for me as battery life.
But I want my battery meter show correct percentage. Then I can be able to know when it will turn off.
I tried battery calibration several times. I search a lot about this problem but found nothing. Probably people thinks that their battery life is too short.
So cannot find solution.
Summary: My Atrix’s battery meter immediately drop to 1% and then runs 3 times longer than previous 99%. PLEASE HELP ME TO CORRECT MY BATTERY METER DISPLAY.
Do you think that your battery fix way helps me?
Please see details of my Atrix below:
MB860
2.3.4
45.0.7.MB860.Orange.en.FR
N_01.77.30P
[email protected]#2
4.5.2A-11_OLE-7 OceanR1.1
Battery calibration result in %100: 4196mV
Current charge: 40%, 3944mV
Usage: 12h 48m 1s on battery (wifi and 3g data off)
(Phone idle 72%, mobile standby 13%, display 7%)
Click to expand...
Click to collapse
Another atrix owner is also facing the same issue.
Sent from my MB860 using XDA App
maybe you can just shot that owner a PM, ask how he solved his problem.
sspa said:
maybe you can just shot that owner a PM, ask how he solved his problem.
Click to expand...
Click to collapse
He has not figured out the problem he is also looking for a solution.
I have now reflashed stock sbf 2.3.4 still having the same problem.
My device settings
Network data and Bluetooth is always off.
WiFi is only on when being used rest of the time its also off.
terminator1983 said:
I have now reflashed stock sbf 2.3.4 still having the same problem.
My device settings
Network data and Bluetooth is always off.
WiFi is only on when being used rest of the time its also off.
Click to expand...
Click to collapse
Like somebody already told you a few post back, follow these steps and it will fix your problem...
http://forum.xda-developers.com/showthread.php?t=1198333
Hint: Follow the steps!
sotodefonk said:
Like somebody already told you a few post back, follow these steps and it will fix your problem...
http://forum.xda-developers.com/showthread.php?t=1198333
Hint: Follow the steps!
Click to expand...
Click to collapse
I have already followed these steps twice but i doesn't seem to work for me.
terminator1983 said:
I have already followed these steps twice but i doesn't seem to work for me.
Click to expand...
Click to collapse
Did you flash the jug6ernaut's CWM battery fix in recovery?
Do your battery its an original battery or its a chinese one?
sotodefonk said:
Did you flash the jug6ernaut's CWM battery fix in recovery?
Do your battery its an original battery or its a chinese one?
Click to expand...
Click to collapse
Yes i have also applied the fix no battery is original it came with the phone and the phone is only two weeks used.
Have you solved this problem? I meet the same issue.
byelims said:
Have you solved this problem? I meet the same issue.
Click to expand...
Click to collapse
No nothing how u got this problem.
Sent from my MB860 using Tapatalk
terminator1983 said:
No nothing how u got this problem.
Sent from my MB860 using Tapatalk
Click to expand...
Click to collapse
I don't know. I bought it, and unlocked it directly, then flash CM7 Rom, but noticed that the battery drain very fast. However, after the indicator becomes 1%, I can still use rather a long time. I thought it was an error on battery meter, but I can't make it display correctly through calibration.
Now if the battery is fully charged, I can still use rather a long time after the indicator becomes 1%. But after the battery drained, it can't be charged completely. It really disappoints me very much.
byelims said:
I don't know. I bought it, and unlocked it directly, then flash CM7 Rom, but noticed that the battery drain very fast. However, after the indicator becomes 1%, I can still use rather a long time. I thought it was an error on battery meter, but I can't make it display correctly through calibration.
Click to expand...
Click to collapse
Ya that's the same problem i have i think its something to do with phone recognizing the mah capacity of the battery if u can see the charge-full-design in sys/class/power-supply/battery/charge-full-design u will notice it showing only 500 which should be 1880 that's why our phone drops and charge quickly according the capacity its getting from charge-full-design.
This value can be changed on other phone but for Motorola i have not found any tutorial or app to do so
http://forums.webosnation.com/palm-pre-pre-plus/256967-find-out-how-good-bad-your-battery.html
http://forum.xda-developers.com/showthread.php?t=765609
byelims said:
Now if the battery is fully charged, I can still use rather a long time after the indicator becomes 1%. But after the battery drained, it can't be charged completely. It really disappoints me very much.
Click to expand...
Click to collapse
And for charging don't take off the phone from charging on 100% bcoz when the phone battery meter is showing 100% its battery mv is less than 3900mv and if u keep it on charge after 100% battery mv value will gradually go up to 4200mv which is the actual capacity of the battery.
terminator1983 said:
Ya that's the same problem i have i think its something to do with phone recognizing the mah capacity of the battery if u can see the charge-full-design in sys/class/power-supply/battery/charge-full-design u will notice it showing only 500 which should be 1880 that's why our phone drops and charge quickly according the capacity its getting from charge-full-design.
This value can be changed on other phone but for Motorola i have not found any tutorial or app to do so
http://forums.webosnation.com/palm-pre-pre-plus/256967-find-out-how-good-bad-your-battery.html
http://forum.xda-developers.com/showthread.php?t=765609
And for charging don't take off the phone from charging on 100% bcoz when the phone battery meter is showing 100% its battery mv is less than 3900mv and if u keep it on charge after 100% battery mv value will gradually go up to 4200mv which is the actual capacity of the battery.
Click to expand...
Click to collapse
Oh, thanks. The value in sys/class/power-supply/battery/charge-full-design is just a result, representing the battery statue. So the key is that the battery capacity can't be recognized correctly by the phone. I just test another battery, and the value 1880!
But the former battery doesn't look like a fake one. Actually, I bought them together. I can't understand.

Shuts off randomly. Is this a swollen battery?

Hi,
I have a GT-I9100, running CM10. This has been working great for weeks (since first CM10 experimental). Some time back I started experiencing problems while charging, and I thought it was a faulty charge port. This problem magically "solved" itself, but now I am experiencing random shutt off, freezes, part of the screen going black before it turns off completely. Some times I get to the boot animation, some times it turns off and works for a while, before shutting off again. Tried a complete wipe/factory reset, to no avail. The battery stats also seems pretty random, going from ~70% to ~10% after turning off and on again.
I was reading here (http://support.t-mobile.com/docs/DOC-3152 (I don't own a T-mobile)), and it said this could be caused by a faulty battery. I have taken some photos of the battery here: http://imgur.com/a/FVyK0 ... To me it seems that it could be some visible swelling to the battery, but I don't have anything to compare it with. Any opinions??
And could a "faulty" battery be the cause to these problems (which to me seems to be software related)?
Which kernel are you running?
Slekvak said:
Hi,
I have a GT-I9100, running CM10. This has been working great for weeks (since first CM10 experimental). Some time back I started experiencing problems while charging, and I thought it was a faulty charge port. This problem magically "solved" itself, but now I am experiencing random shutt off, freezes, part of the screen going black before it turns off completely. Some times I get to the boot animation, some times it turns off and works for a while, before shutting off again. Tried a complete wipe/factory reset, to no avail. The battery stats also seems pretty random, going from ~70% to ~10% after turning off and on again.
I was reading here (http://support.t-mobile.com/docs/DOC-3152 (I don't own a T-mobile)), and it said this could be caused by a faulty battery. I have taken some photos of the battery here: http://imgur.com/a/FVyK0 ... To me it seems that it could be some visible swelling to the battery, but I don't have anything to compare it with. Any opinions??
And could a "faulty" battery be the cause to these problems (which to me seems to be software related)?
Click to expand...
Click to collapse
1. the battery is a little swollen at the middle
2. use a thin a paper to support the battery to ensure proper contact with the gold pins. this might resolve the random shutdown issue
Did you undervolt and/or underclock CPU and/or GPU? If yes, less aggressive values may help.
The crazy battery percentage can be solved by charging your phone to 100%, then clear battery stats and reset your fuel-gauge chip.
Tell me if this helped or not.
przemcio510 said:
Which kernel are you running?
Click to expand...
Click to collapse
I installed the latest CM10 build today, 10-20120821-EXPERIMENTAL-i9100-CODEWORKX, kernel 3.0.15-CM-gea1d0d7, baseband I9100XXLQ6. I have however experienced these problems on other CM10 builds, but before I started experience them, I was running CM10 without any problems.. I could downgrade to CM9 and check I guess...
Jokesy said:
1. the battery is a little swollen at the middle
2. use a thin a paper to support the battery to ensure proper contact with the gold pins. this might resolve the random shutdown issue
Click to expand...
Click to collapse
1. Is this any danger somehow? I'm trying suggestion nr. 2. Thanks.
Slekvak said:
I installed the latest CM10 build today, 10-20120821-EXPERIMENTAL-i9100-CODEWORKX, kernel 3.0.15-CM-gea1d0d7, baseband I9100XXLQ6. I have however experienced these problems on other CM10 builds, but before I started experience them, I was running CM10 without any problems.. I could downgrade to CM9 and check I guess...
1. Is this any danger somehow? I'm trying suggestion nr. 2. Thanks.
Click to expand...
Click to collapse
I don't think it's in any danger, it happens in old Nokia phones. I personally experienced this in my old n95.
It looks like as a result of too much heating, maybe
gb.yolo said:
Did you undervolt and/or underclock CPU and/or GPU? If yes, less aggressive values may help.
The crazy battery percentage can be solved by charging your phone to 100%, then clear battery stats and reset your fuel-gauge chip.
Tell me if this helped or not.
Click to expand...
Click to collapse
I have been checking out calibration, but there seems to be some diverging information. Should I charge it 100% while using it, or while off? Should I first drain the battery? And what do you mean by "reset fuel-gauge chip"?
As you can see, these battery stats don't seem right: http://imgur.com/Xnv6W.png
gb.yolo said:
Did you undervolt and/or underclock CPU and/or GPU? If yes, less aggressive values may help.
The crazy battery percentage can be solved by charging your phone to 100%, then clear battery stats and reset your fuel-gauge chip.
Tell me if this helped or not.
Click to expand...
Click to collapse
how do you clear battery stats and reset fuel-gauge chip?
I have the same problem
prufessa said:
how do you clear battery stats and reset fuel-gauge chip?
Click to expand...
Click to collapse
Wow that's the exact same thing happen to me.
The phone would shuts off by itself at random battery percentage. then I try to turn it back on, sometimes it just shuts right off.
At other time it would continue running with the battery slowly increasing. The graph of battery usage is really similar to yours. It would have those "valley of death" and then comes back alive as a short lived battery.
I am trying the battery reset by draining the battery until the phone really cannot be turned on (even the monitors), take off the battery for 2 minutes, charge it while it's off, unplug as soon as it reaches 100%, charge it till 100% again. I have read other thread saying that the taking out the battery part is at the end of the charging (100%), not at the beginning (0%). So I don't know which one is correct way to reset the battery.
Before update, I did not experience this prob, but only really hot cellphone while charging and fast draining battery even with 2x battery apps. Well, I had like 100+ apps, so it's understandable, but now, I have a very few apps (10+) but it's doing this magic trick to me.
Oh, and I noticed my battery is swollen and bulged at the middle too.
Anyone has an answer if it is a battery problem or just my mind going crazy?
I'm having exactly the same problem while running CM9. However i've noicted that the same thing happens while running stock as well. No overclocking or undervolting here.
My battery is swollen as yours is as well. Could it be a faulty battery?
Looks like it was the battery after all.
The service centre lady told me that my battery was FUBAR. Bought a new one and the problem seems to have disappeared.
She said it happens because of overcharging. Is that true? Thank god the battery was cheap.
It was the battery for sure. Ive been getting amazing battery life ever since I bought the new one. No more unexpected shut downs or any of the problems i was having.
Sent from my GT-I9100 using Tapatalk 2
Glad to hear that's what the problem was
mrcreativity said:
Looks like it was the battery after all.
The service centre lady told me that my battery was FUBAR. Bought a new one and the problem seems to have disappeared.
She said it happens because of overcharging. Is that true? Thank god the battery was cheap.
It was the battery for sure. Ive been getting amazing battery life ever since u bought the new one. No more unexpected shut downs or any of the problems i was having.
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
I have a Sprint Galaxy SII (Epic 4G Touch) and have been having the same issues. My battery is also swollen and I have been trying software fixes for a couple of weeks. I ordered a new battery and am glad to find that your very similar problem was solved that way.
Thanks for posting about this!

[Q] Sudden death of battery

After upgrading my phone from ICS to JB, I experience a strange phenomena.
The battery life was 75%, and I was calling someone for about 2-3 minutes, then the phone turned off by itself.
The battery was 0%, in just 2-3 minutes!
When I upgraded the OS, I did factory reset. I rooted the phone, froze a lot of bloatwares, but the problem still persisted.
I am beginning to think that my battery is bad or something.
Anybody experienced anything like this?
Any solutions to the problem?
I tried charging the battery from 0% to 100% with power off for several consecutive days, but the problem still persisted.
I need help!
Batteries do eventually die. You can find a good extended battery on ebay for under $10.
Don't quote, reply. If you quote, edit.
andy.tae.koh said:
After upgrading my phone from ICS to JB, I experience a strange phenomena.
The battery life was 75%, and I was calling someone for about 2-3 minutes, then the phone turned off by itself.
The battery was 0%, in just 2-3 minutes!
When I upgraded the OS, I did factory reset. I rooted the phone, froze a lot of bloatwares, but the problem still persisted.
I am beginning to think that my battery is bad or something.
Anybody experienced anything like this?
Any solutions to the problem?
I tried charging the battery from 0% to 100% with power off for several consecutive days, but the problem still persisted.
I need help!
Click to expand...
Click to collapse
I experienced that with the revolt job 4.2.2. Out of the no where went down to 0 installed another ROM and wiped my battery stats I think old battery stats mess up the battery performance so I will c how my phone acts then I'll let ya know
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
I think it was the battery
After posting the question, I removed the battery to see if physical status of the battery was not the primary cause of the issue.
Well, the battery the"fat". The middle of the battery was bulging for some strange reason. It seemed as if it was left in the direct sun light for a few hours, and I know I did not leave the phone out in the direct sun light, ever!. Well, I ordered a new battery on Friday, and I will have to wait and see if a new battery would solve the problem. I will report back.
andy.tae.koh said:
After posting the question, I removed the battery to see if physical status of the battery was not the primary cause of the issue.
Well, the battery the"fat". The middle of the battery was bulging for some strange reason. It seemed as if it was left in the direct sun light for a few hours, and I know I did not leave the phone out in the direct sun light, ever!. Well, I ordered a new battery on Friday, and I will have to wait and see if a new battery would solve the problem. I will report back.
Click to expand...
Click to collapse
My battery is bulging too. It has been just dying even though my phone reads 50 percent of bat life. My mother in laws battery got really fat and compared to a new one I ordered came to a conclusion that battery bulging or fattening is a battery will die soon. What bat u ordered
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
I have the stock 2500 ...tmart 5200 and now the ravpower 2750 and I can honestly say the ravpower is the best
£|@$h•h°|i©
The new battery is working well!
COA4178 said:
My battery is bulging too. It has been just dying even though my phone reads 50 percent of bat life. My mother in laws battery got really fat and compared to a new one I ordered came to a conclusion that battery bulging or fattening is a battery will die soon. What bat u ordered
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
Click to expand...
Click to collapse
I ordered following battery from Amazon.com.
OEM Samsung Standard Battery for Samsung Galaxy Note (AT&T) i717 EB615268VA
Sold by CellPhonesCheap
I ordered on Friday afternoon, and received the item on Monday afternoon. The vendor is located somewhere in NY, and very prompt about sending the item. I only used it for a day, and very satisfied.
im curious did you ever solve this issue? i have the EXACT symptoms. did your replacement battery fix this?
or did wiping battery stats help?
geminihc said:
im curious did you ever solve this issue? i have the EXACT symptoms. did your replacement battery fix this?
or did wiping battery stats help?
Click to expand...
Click to collapse
Good idea to replace after about a year anyway.
Sent from my SAMSUNG-SGH-I527 using xda app-developers app
captemo said:
Good idea to replace after about a year anyway.
Sent from my SAMSUNG-SGH-I527 using xda app-developers app
Click to expand...
Click to collapse
at least we could replace ours! think of all those new phones that are NOT replaceable at all !
Problem solved..
geminihc said:
im curious did you ever solve this issue? i have the EXACT symptoms. did your replacement battery fix this?
or did wiping battery stats help?
Click to expand...
Click to collapse
I had to replace the battery. My wife had the same issue not long after I had the problem. The battery replacement solved the problem for both of us. Wiping out battery stats did not help. I bought a new battery. I recommend ravpower 2750.

Screen flicker and device shutdown

Hi xda! So I've been having a problem for a couple of months with my SGSII and i have searched a lot but i haven't found a solution yet.
The problem is that battery behaves normally and has a normal drain rate, but when it reaches 40% more or less it drains massively and drops to 10 % (more or less, could be 11% or 9%. It is not something precise and accurate) and screen immediately starts to flicker, backlight as well, then the signal is lost and phone shuts down. After that i can not turn it on unless i charge it.
I have looked a lot and pretty much all of the forums recommended to buy a new battery. I bought another battery (original) and the problem still continued. I've also tried swapping batteries with a friend, but the problem still happened to me and not to him. Also I have tried a lot of Roms, I've tried going back to stock as well, but still nothing.
Currently I'm running Cyanogenmod 10.1 RC2 because it gives me the best battery life in those 60%.
I leave you an attachment of a screenshot. As you can see battery percent dropped a lot at the end, and i wasn't using it heavily.
Thank you in advance.
It is a hardware issue, I had the same problem (battery would drain below 10% though), sent it to Samsung, Motherboard and Charge Socket got replaced, I don't know which one was causing it because I had other issues like broken home button too.
brpper said:
Hi xda! So I've been having a problem for a couple of months with my SGSII and i have searched a lot but i haven't found a solution yet.
The problem is that battery behaves normally and has a normal drain rate, but when it reaches 40% more or less it drains massively and drops to 10 % (more or less, could be 11% or 9%. It is not something precise and accurate) and screen immediately starts to flicker, backlight as well, then the signal is lost and phone shuts down. After that i can not turn it on unless i charge it.
I have looked a lot and pretty much all of the forums recommended to buy a new battery. I bought another battery (original) and the problem still continued. I've also tried swapping batteries with a friend, but the problem still happened to me and not to him. Also I have tried a lot of Roms, I've tried going back to stock as well, but still nothing.
Currently I'm running Cyanogenmod 10.1 RC2 because it gives me the best battery life in those 60%.
I leave you an attachment of a screenshot. As you can see battery percent dropped a lot at the end, and i wasn't using it heavily.
Thank you in advance.
Click to expand...
Click to collapse
May be there would be some hardware related problem. But why dont you give a try to to a wakelock detector app like betterbattery stats or wakelock detector? Atleast you will know which app is eating your battery or is it a hardware related problem.
Nexcore said:
It is a hardware issue, I had the same problem (battery would drain below 10% though), sent it to Samsung, Motherboard and Charge Socket got replaced, I don't know which one was causing it because I had other issues like broken home button too.
Click to expand...
Click to collapse
Thank you for answering. Unfortunately I have already rooted my device hence voiding my warranty. Maybe i could have it fixed by some technician.
singhsidhartha said:
May be there would be some hardware related problem. But why dont you give a try to to a wakelock detector app like betterbattery stats or wakelock detector? Atleast you will know which app is eating your battery or is it a hardware related problem.
Click to expand...
Click to collapse
I have tried a lot of battery related apps. BBS is one if them. I haven't seen anything unsual. In fact I've also tried apps like greenify. However battery life in the first 60% of battery is actually good. After 40% comes the problem.
Send it to samsung
Install triangle away and reset counter then flash stock jb rom from your country & provider
Sent from my GT-I9100 using XDA Premium 4 mobile app

Signs of a bad Battery

I've had a stock s4 battery for a while and recently its been draining pretty fast. I've changed roms many times but the end result is always still the same bad battery life. At this point, I'm wondering if my battery is just degraded. I drain 10 percent from 2 hours idle . Also, wakelock detector isn't detecting anything unusual.
Does anyone have experience with a degraded/bad battery? Besides a bad battery life, is there any other defining feature.
Raymondlikesroot said:
I've had a stock s4 battery for a while and recently its been draining pretty fast. I've changed roms many times but the end result is always still the same bad battery life. At this point, I'm wondering if my battery is just degraded. I drain 10 percent from 2 hours idle . Also, wakelock detector isn't detecting anything unusual.
Does anyone have experience with a degraded/bad battery? Besides a bad battery life, is there any other defining feature.
Click to expand...
Click to collapse
check to see if the battery is physically swollen; somewhat common problem for the s4. the swelling may only be slight, but if you're able to spin it on a flat surface, you should replace it.
Mine has been that bad since out of the box. Worst performing battery out of any Android I've ever owned. It's my only gripe about the phone except for the locked bootloader. Like you, I've tried virtually every ROM out there and its always the same issue. I was hoping a blacked out ROM would help but it hasn't really.
I ordered a zerolemon 3000 mah battery to replace the stock one. Hopefully this will fix any battery issues.
Raymondlikesroot said:
I ordered a zerolemon 3000 mah battery to replace the stock one. Hopefully this will fix any battery issues.
Click to expand...
Click to collapse
Interesting. Would you mind posting your experience back here once you try it out for a few days? I suspect you will need to calibrate it when you first install it too.
LGtMgG2t said:
Interesting. Would you mind posting your experience back here once you try it out for a few days? I suspect you will need to calibrate it when you first install it too.
Click to expand...
Click to collapse
Yeah, I can definitely do that.

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