Nexusn10 battery drain - Nexus 10 General

Hey guys my nexus is dropping it battery really quickly, it went from 90% to 80% in half an hour' is that usual with a custom ROM and low brightness? It was even worse when it was on stock firmware, a little insight would be great as I got this new.

This may be of use to you:
http://forum.xda-developers.com/showthread.php?t=2208717

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[Q] Its official. My Galaxy S2 is busted.:(

Hi guys just wanted to say my galaxy s2 is officially busted. Its still in working order do not get me wrong but something wrong with the hardware i think because i have flashed so many roms and stock roms to try and resolve the problem and i cant. My display is always sky high in battery usage and i cant get it down to save the life of it. Got everything on the lowest that is brightness settings and still nothing. Spoken to samsung and they say its not suppose to be like that and that display always high and as high as 60% is not right.
What can i do please cause i love the phone and it really pisses me off that it gets drained so bloody quickly? Shall i just sell it and get an HTC sensation instead or shall i send it to Samsung and be patient for ten days without my phone
tjoannou2001 said:
Hi guys just wanted to say my galaxy s2 is officially busted. Its still in working order do not get me wrong but something wrong with the hardware i think because i have flashed so many roms and stock roms to try and resolve the problem and i cant. My display is always sky high in battery usage and i cant get it down to save the life of it. Got everything on the lowest that is brightness settings and still nothing. Spoken to samsung and they say its not suppose to be like that and that display always high and as high as 60% is not right.
What can i do please cause i love the phone and it really pisses me off that it gets drained so bloody quickly? Shall i just sell it and get an HTC sensation instead or shall i send it to Samsung and be patient for ten days without my phone
Click to expand...
Click to collapse
Id say just wait for the new phone, the galaxy s II obliterates the Sensation. This coming from a person who's owned both devices.
About your display problem, sounds pretty weird never heard of an issue like that before.
tjoannou2001 said:
Hi guys just wanted to say my galaxy s2 is officially busted. Its still in working order do not get me wrong but something wrong with the hardware i think because i have flashed so many roms and stock roms to try and resolve the problem and i cant. My display is always sky high in battery usage and i cant get it down to save the life of it. Got everything on the lowest that is brightness settings and still nothing. Spoken to samsung and they say its not suppose to be like that and that display always high and as high as 60% is not right.
What can i do please cause i love the phone and it really pisses me off that it gets drained so bloody quickly? Shall i just sell it and get an HTC sensation instead or shall i send it to Samsung and be patient for ten days without my phone
Click to expand...
Click to collapse
What is your average display "Time on" on "Battery usage" when you're almost running out of battery?
How quickly does it drain? Don't you have warranty to get it replaced if it's actually faulty? I can't really decide if that's the case from your non-sense post.
tjoannou2001 said:
. My display is always sky high in battery usage and i cant get it down to save the life of it. Got everything on the lowest that is brightness settings and still nothing. Spoken to samsung and they say its not suppose to be like that and that display always high and as high as 60% is not right.
Click to expand...
Click to collapse
My display is high as well with android Os in second most of the time and its normal, cause I use the phone a lot so obviously the screen will be high.
I get around 13-17 hours heavy usage so am happy I dont think its anything to do with rom flashing unless you get lower then 10 hours battery life
sorry i should of made it more clearer. Once i charge my handset as soon as i start using it you can see the percentage drop rapidily. i go into the battery usage and the display is at its highest and draining the battery. And that is with brightness to low settings. If i do not use the phone it can last me for a whole day and a half. But im to scared to use it for browsing and thats over wifi cause i know it will not last me to long...i know the handset is a battery drainer but come on the display should not be as high as it is..and with the warranty i have put the stock rom back so can they find out still that i had my handset rooted if i was to send it in
tjoannou2001 said:
sorry i should of made it more clearer. Once i charge my handset as soon as i start using it you can see the percentage drop rapidily. i go into the battery usage and the display is at its highest and draining the battery. And that is with brightness to low settings. If i do not use the phone it can last me for a whole day and a half. But im to scared to use it for browsing and thats over wifi cause i know it will not last me to long...i know the handset is a battery drainer but come on the display should not be as high as it is..and with the warranty i have put the stock rom back so can they find out still that i had my handset rooted if i was to send it in
Click to expand...
Click to collapse
If you get two hours with screen on, than that's normal and not a hardware failure. Use white backgrounds as little as possible.
Apparently they could, I believe they some kind of count record of the amount of roms you have flashed and the only way to reset is by using a 'JIG' if you search the forums should be able to find more info on the 'JIG'
http://forum.xda-developers.com/showthread.php?t=1068522&highlight=jig+to+reset+counter
you might try some of the other forums about reseting it
Looks like SAMOLED+ consume most power on SGS2. I thought it's normal. Just know mine also having the same problem.
Sucks to be the guy who receives all these problems. I suggest, you just get a refund, as you should be ashamed of yourself if you sell a defective SGS2.
If you like the sensation, get it. It's also good, as I usually borrow it from my sister when we feel like exchanging phones for a few days. Sensation's default battery life is a little worse than the SGS2, as I only get 18hrs-1d 4hrs in the Sensation(still not rooted/default ROM) against the 1d - 1d 10hrs of the SGS2(Leomar ROM + Ninphe 2.2/undervolted).
My sister just got those chichitec 1900mAh batteries, and she said battery life on the Sensation improved(Only her word, as we have yet to exchange phones again this weekend). Now, all it needs is an undervolt + good ROM and the Sensation's battery should last a longer if not the same than the SGS2. Though you'll surely miss the SAmoled+ quality if you compare it with the SLCD of the Sensation, hope HTC improve on this department, they should have used IPS instead of SLCD.
A little tip if your getting the Sensation, is to thoroughly check its touchscreen sensitivity. My Sensation, is a little buggy sometimes, sense lagging/resetting + weird touch sensitivity. Though, I think it should be fix by flashing a good ROM + Kernel. Good Luck.
holyguyz said:
Looks like SAMOLED+ consume most power on SGS2. I thought it's normal. Just know mine also having the same problem.
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Click to collapse
well im going to fully charge it again today and see how it goes. i have reverted back to stock rom and just rooted with chainfire kernel and installed titanium backup and unistalled all the samsung hubs and froze the wifi sharing bit. but my display is still high but i see how long i can get out of it i will post a screen after i let it drain down ..
and sorry to hear that you are having the same problem.
tfn said:
My display is high as well with android Os in second most of the time and its normal, cause I use the phone a lot so obviously the screen will be high.
I get around 13-17 hours heavy usage so am happy I dont think its anything to do with rom flashing unless you get lower then 10 hours battery life
Click to expand...
Click to collapse
what is your display percentage and how can you manage to get so many hours out of it? any tips? i will be posting screen shots tomorrow for you guys to see what im talking about
If you have been using the phone the screen will always be #1 on the list, as its the part that needs the most power.
The phone will get about 6-8h of screen on time total before the battery is flat, but it will depends on mobile coverage (weak coverage will drain faster), if you are using heavy data, wifi usage (will be better than using mobile data on a weak signal or if you are pushing a lot of data round).
Generally radios will eat up the juice.
Also games will hurt.
You can use CPUspy to see what states the CPU is in, and if its going to deep sleep.
Also in settings > about phone > battery use, you want the awake and screen on lines to match up as much as you can.
(Music will keep the phone awake while the screen is off, and so will downloading stuff etc)
tjoannou2001 said:
and sorry to hear that you are having the same problem.
Click to expand...
Click to collapse
The truth is, that what you report as a problem, is not a problem, it is simply a fact. SAMOLED displays drain batteries like hell. Mine does exactly the same. Like you, I was starting to think that my unit was somewhat faulty, but soon fund out that it was not. In fact, the truth is that the galaxy s2, if left on with the acreen at normal brghtness, fully drains its battery in a matter of 5 hours or so. It is due mainly to the display draining something like 0.8 Watts, alone.
People saying they get almost 2 days use simply tell bullocks, because there's no way of actually using this phone and getting more than about 15 hours autonomy from its battery.
Sent from my GT-I9100 using XDA App
Please use the Q&A Forum for questions Thanks
Moving to Q&A
Samsung support/RMA process has worked very well for me. Third phone already. Maybe ask them to replace yours?
I'm still confused over there. You're just talking without making any sense at all. The only thing I've got from all this is that you're complaining about display being the highest on the battery drain list. That means nothing. Or not much at least. Those values need to give a total of 100%, so if you're using your phone, and display is the highest, your phone is working really good, and you don't have the AOS bug. Which means your device is not faulty, you just don't understand the battery statistics screen. Pardon me if I understood your problem wrong, but if I didn't, just carry on with your life, your phone has no problems at all. I get around 1.5 days with medium usage, and I think that's normal for a phone like this.
TheSaw said:
I'm still confused over there. You're just talking without making any sense at all. The only thing I've got from all this is that you're complaining about display being the highest on the battery drain list. That means nothing. Or not much at least. Those values need to give a total of 100%, so if you're using your phone, and display is the highest, your phone is working really good, and you don't have the AOS bug. Which means your device is not faulty, you just don't understand the battery statistics screen. Pardon me if I understood your problem wrong, but if I didn't, just carry on with your life, your phone has no problems at all. I get around 1.5 days with medium usage, and I think that's normal for a phone like this.
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You are not being rude at all. I have flashed yesterday batistas new rom and using jeffrey speedfrey kernel and i have fully charged the phone and calibrated it as well. I am going to let it die down and recharge it again to the max and see how it goes after that as well. My point of this though is as below on the screenshot. The display is always in that percentage and that is what has me worried. I have checked on other posts and the most that they get is 35 to 50%. I have the lowest brightness settings and it still that high..That is why i am asking if there is something wrong with my phone. I am getting good battery life so far just with medium usage and having wifi on since i have charged it but the display is what worries me. If someone could help me with these pointers as well i would appreciate it:
Does underclocking with Setcpu help battery life even more?
And what do you guys think of the screenshot?
i know this sounds silly but how does someone close a thread once they opened it i have a few i want to close..
Thanks again to everyone for you help..
It has dropped to 76% after 10 hours and a couple hours of screen usage. I don't think that there is a problem.
fred_up said:
It has dropped to 76% after 10 hours and a couple hours of screen usage. I don't think that there is a problem.
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why is my display % so high though that is what im questioning. its not just for a few minutes its as soon as i get the phone out of sleep the display percentage sky rockets. and its that much cause the phone was asleep overnight

[Q] Battery issue? Possibly the Costum Kernel?

Well recently I bought the Beast S3.
Now I installed this first Kernel - CF-Root-SGS3-v6.4
And CM9 rom, was working great though there's one problem the damn battery drain is like being raped evey 5-10 mins if not less I loose 1-2% battery.
Now I though it might be the Kernel so I switched to Siyah-s3-v1.5.3-CWM, no go still the same result.
I changed my Rom to CM10, same result.
Here's a Screenie of my device (In Attachments)
Could you help out a little? I've checked and not sure where is the issue, and I understand that super huge screen consumes allot of power but even if I set brightness to 0-25% I get the same result...
Most battery issues are caused by installed user apps. Install Cpu Spy for cpu deep sleep issues and Better Battery Statts for locating apps that show unusual activity`s and drain the battery.
UD3R said:
the damn battery drain is like being raped evey 5-10 mins if not less I loose 1-2% battery.
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This battery drain percentage looks normal to me.
Sometimes I lose 5% without doing anything, even if I have a perfectly cleaned rom.

ROMs and Battery

What has been people's experience with battery life with the different ROMs? I've been on AOKP for awhile, and the battery, quite frankly, sucked compared to stock. I'm currently on PA and am getting just under stock. For me, battery life is first priority, even if there is occasional stutter. Testing battery life takes a long time, so I just wanted to see what others have been seeing. I would stay on stock, but I really want Tablet UI and real setting toggles.
rp181 said:
What has been people's experience with battery life with the different ROMs? I've been on AOKP for awhile, and the battery, quite frankly, sucked compared to stock. I'm currently on PA and am getting just under stock. For me, battery life is first priority, even if there is occasional stutter. Testing battery life takes a long time, so I just wanted to see what others have been seeing. I would stay on stock, but I really want Tablet UI and real setting toggles.
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Disable Google Now and see if that helps, totally did on my HOX and I've yet done it to my Nexus but I've not used it enough to actually deplete a battery yet.
rp181 said:
What has been people's experience with battery life with the different ROMs? I've been on AOKP for awhile, and the battery, quite frankly, sucked compared to stock. I'm currently on PA and am getting just under stock. For me, battery life is first priority, even if there is occasional stutter. Testing battery life takes a long time, so I just wanted to see what others have been seeing. I would stay on stock, but I really want Tablet UI and real setting toggles.
Click to expand...
Click to collapse
You sort of want your cake and eat it too. If you want a ROM full of features and packed full of unicorn blood and the tears of leprechauns something is going to have to give and that will always be the battery life.
I use pa ...I charge my tablet every other day
Sent from my Nexus 10 using XDA Premium HD app
Stock ROM
Ktoonsez Kernel: Underclock to 1.3Ghz
Disabled: Google Now, GPS,
Freeze: all stock apps I don't use, Magazine, books, currents
Battery Life: 4 days.
I read a lot.
Don't game.
Watch videos with zero stutter.
I finally charged my tablet last night. Im at 82% in 8 hours.
Sent from my Nexus 10
I'm addicted to my tablet... I've been using it without stop for the last three hours. This are my results with Paranoidandroid:
Very similar with stock though. I think I could upload some as well.
I'm pretty sure this is stock. Not a lot of difference as I said. Both of the images are with very heavy usage, I mean, screen on all the time, but almost the lowest brightness. With the screen off I get almost no drop.
(I couldn't attach the image in the previous post)
Battery life will always be a combination of idle drain + screen on drain. THe most important is obviously how long you can actually use the tablet (screen on time), but you also need good enough idle drain to not lose hardly any charge between when you use your tablet.
The more features you add the less battery life usually is. So either keep PA so you have the tablet UI or use a ROM that is very close to stock, like the stock ROM from scrosler or Muzzy's ROM.
A kernel can also have greater effect on battery life. If you want the best battery then go with KTManta kernel. Use either PegasusQ or ktoonservative governor and add in some undervolting to lower power draw. Using this combination I was able to get over 13 hours of screen on time in 1 charge. Idle drain was about 1% every 8-9 hours.
Personally, I've found that my battery life has improved maybe 10% since running cyanogenmod. If I'm really lucky I can get 7 hours SOT. Not a huge improvement over stock, but its definitely better.
Its worth noting that I use the "performance" CPU governor, which is supposed to be a battery killer. Strangely it doesn't seem to make much difference for me though, it just makes everything quicker!
stiggy2012 said:
Personally, I've found that my battery life has improved maybe 10% since running cyanogenmod. If I'm really lucky I can get 7 hours SOT. Not a huge improvement over stock, but its definitely better.
Its worth noting that I use the "performance" CPU governor, which is supposed to be a battery killer. Strangely it doesn't seem to make much difference for me though, it just makes everything quicker!
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Click to collapse
Well, it is difficult to notice a higher battery drop when it is already insane... XD. Well, according to battery widget I'm getting around 8h with the screen on, which is not bad.
Ashade said:
Well, it is difficult to notice a higher battery drop when it is already insane... XD. Well, according to battery widget I'm getting around 8h with the screen on, which is not bad.
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I've used the "battery widget" for a very long time and that app is a battery drainer. Got way better battery life uninstalling that app.

[SOLVED]Galaxy S2 Screen Battery drain

Hey,guys.My dad recently give away his Galaxy S2,and I updated it to 4.1.2 android JB.I noticed that the battery drains faster than on ginger bread,I looked at the battery stats and it shows that the screen uses 44% of battery.Next day I checked it showed 56%.Is it normal?
BTW I went to bed when my phone battery was 89%.When I woke up it was 79%.I did the battery calibration by charging to 100% taking off the battery and putting it back on after 5min.But I don't see the difference after that.Please help!
ExO_36 said:
Hey,guys.My dad recently give away his Galaxy S2,and I updated it to 4.1.2 android JB.I noticed that the battery drains faster than on ginger bread,I looked at the battery stats and it shows that the screen uses 44% of battery.Next day I checked it showed 56%.Is it normal?
BTW I went to bed when my phone battery was 89%.When I woke up it was 79%.I did the battery calibration by charging to 100% taking off the battery and putting it back on after 5min.But I don't see the difference after that.Please help!
Click to expand...
Click to collapse
Yes it's normal.Jb hogs on battery .You can follow the many battery saving tips that have been posted.If you came from GB i figure your battery must be pretty old.It might require a replacement.
vish91 said:
Yes it's normal.Jb hogs on battery .You can follow the many battery saving tips that have been posted.If you came from GB i figure your battery must be pretty old.It might require a replacement.
Click to expand...
Click to collapse
Thanks very much, the phone is 2 years old probably I will replace the battery
i am just new to Android and suprised how dull the display is on my S2 at its lowest setting. Coming from Blackberry where my device was always at 10% brightness. its seems that blackberrys were brighter than my S2, both on the lowest settings.
That being said, i now have my S2 at full brightness and the battery drain is worse than i expected it to be. a small thing when the OS is so good and the whole phone works so fast. i was living in the dark ages. lol.
My device is 39% for screen and so maybe a new battery for you may help. make sure you get a official S2 battery and not a cheaper one from Ebay of that. found the cheap one to have low capaicty even if they say that they are the same or higher than the official ones.
ExO_36 said:
Thanks very much, the phone is 2 years old probably I will replace the battery
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Click to collapse
i have the same problem and it isnt a battery problem.
sorry but what is the "solution"? thread is marked as solved... id like to know about this battery drain issue on 4.1.2

Best battery performance kernel

I am currently running debloated stock .305.
I am not overwhelmed by the battery performance. my z3c with slim rom was much better.
So i wonder if i could flash another kernel and improve the battery performance.
So if you guys have some experiences that they will share i would appreciate it.
thanks in advance for any reply.
torben5247 said:
I am currently running debloated stock .305.
I am not overwhelmed by the battery performance. my z3c with slim rom was much better.
So i wonder if i could flash another kernel and improve the battery performance.
So if you guys have some experiences that they will share i would appreciate it.
thanks in advance for any reply.
Click to expand...
Click to collapse
I'm on the xpower rom and it's weird: during 8h of sleep it only lost 1% of battery, after 10 minutes of browsing and whatsapp it lost 10% of battery. Unacceptable, "screen" is taking most of the battery as there doesn't seem to be any other battery intense app.
Does anyone have any idea?
Sounds like you have 10% drain in 8 hours with light use. That's 1.2% per hour. I think that's pretty usual... And yes, screen should be the most demanding component unless you don't really use the phone. Try lowering the brightness, the effect is almost exponential
Lemming0815 said:
Sounds like you have 10% drain in 8 hours with light use. That's 1.2% per hour. I think that's pretty usual... And yes, screen should be the most demanding component unless you don't really use the phone. Try lowering the brightness, the effect is almost exponential
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Click to collapse
Not really, I have 1% over night (which is great) but then 10% in 10 minutes as soon as I start using it (just browsing the net).
I would assume it's just not getting the levels right just after sleep, in fact you've lost 8% and another 2 while using it.
Lemming0815 said:
I would assume it's just not getting the levels right just after sleep, in fact you've lost 8% and another 2 while using it.
Click to expand...
Click to collapse
you think so? I rebooted it several times and it would always show the same %, only to drop drastically as soon as I used it. It's really weird to see the battery going down while using it for just a couple of minutes.
Battery % is always a guess.
It would be much better to actually use the device for a few days and then deduce how much battery time you get according to your own usage.
Im using XPower as well and notice the same issue. Battery can last forever screen off but then drains quickly when on.
Cerhio said:
Im using XPower as well and notice the same issue. Battery can last forever screen off but then drains quickly when on.
Click to expand...
Click to collapse
Maybe then it's a kernel or rom related issue?
charliebigpot said:
Maybe then it's a kernel or rom related issue?
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Click to collapse
Well compare to the latest stock firmware the battery seems to be night and day. I can easily get two days with light use. The battery drain on stock seemed to just be constant.

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