10% battery drain overnight?!?! - Galaxy S III Q&A, Help & Troubleshooting

I noticed my S3 drains about 10% battery overnight. I dont think this is normal. Wifi and 3g are off, it just lies there by my bed doing nothing. Ive restarted it and no help.
Cell standby shows 41% usage. Is that right?
The 2 red circles in the screenshot show when my phone is idle just lying there.
Any help?

We need more information. What apps run? have you remove/freeze bloatware. Are you rooted? what rom are you on?

I'm going to run this based on speculation perhaps side effects of rooting your phone? I know there is no conclusive evidence of this but a hypothesis as such. My apologies if you aren't rooted.

Itadakiimasu said:
I'm going to run this based on speculation perhaps side effects of rooting your phone? I know there is no conclusive evidence of this but a hypothesis as such. My apologies if you aren't rooted.
Click to expand...
Click to collapse
why would rooting your phone create battery drain?
OP the standard answer is to install better battery stats and check it again to see what those wakelocks are. Once you find out why your phone is waking up you can do something about it.

vikeor said:
I noticed my S3 drains about 10% battery overnight. I dont think this is normal. Wifi and 3g are off, it just lies there by my bed doing nothing. Ive restarted it and no help.
Cell standby shows 41% usage. Is that right?
The 2 red circles in the screenshot show when my phone is idle just lying there.
Any help?
Click to expand...
Click to collapse
I'm also getting a 10% battery drain over night. I've been putting the phone in airplane mode to see if that helps at all but it really doesn't. Anyway we can inprove this? 10% seems like a lot for sleeping...

Death&co said:
I'm also getting a 10% battery drain over night. I've been putting the phone in airplane mode to see if that helps at all but it really doesn't. Anyway we can inprove this? 10% seems like a lot for sleeping...
Click to expand...
Click to collapse
install better battery stats and find what causes wakelocks......as above post!
Sent from my GT-I9300 using xda premium

thanks for the replies everyone, Im using the latest stock firmware... no rooting here...
Installing better battery stats as we speak and see what they say...

GSam Battery Monitor and / or BetterBatteryStats would be the first place as mentioned already.
I was able to find what was causing me most issues. It was some Calender storage and Google syncs (bookmarks, contacts etc) even though I didn't have them activated.
Anyway, after freezing them I now only lose 2-3% overnight. That is with gmail push, email sync every 4 hours and about 7 or 8 other Widgets updating every few hours. Mostly noticed a massive improvement when I flashed the latest siyah kernal.
Sent from my GT-I9300 using xda premium

skimminstones said:
why would rooting your phone create battery drain?
OP the standard answer is to install better battery stats and check it again to see what those wakelocks are. Once you find out why your phone is waking up you can do something about it.
Click to expand...
Click to collapse
I don't know but I get the feeling that rooting various phones might have hidden side effects as such, rooting your phone is still evolving as of today. There are still alot that the general doesn't know hence there are always new things about rooting although I might not be knowledgeable in that department. However is it possible to unroot your phone? rather revert it to stock? try doing that and see if there are any differences.

Related

[Q] 60 percent idle battery usage / 15 hours

I am having huge issues with my battery on my galaxy s2. It drains really fast, 60% over the last 15 hours this night when the phone has been idle. This has been an issue for about a week now; I cannot seem to find a solution? I have tried various roms, wiping and doing a clean install, but the problem continues. Currently using lightening rom 3,2.
Do anyone know what can be causing this battery drain? Is the battery defective??
What apps do you have installed?
Sent from my GT-I9100 using XDA App
That is quite a drain I can see there. The drain might be caused by having too many widgets or having too many applications open. If you plan to put it on standby, do close those apps that are not important to you.
Have you tried rebooting?
I have a stock lightening rom 3,2. no apps installed, except titanium backup pro and opera mobile. I have frozen all kinds of stuff in titanium to try find the cultprit, but without success. As you see, no apps except andoid OS is running. Same drain on villainrom, lightening. Don't know what can be causing the error. Is there some way to check if the phone or the battery it self is to blame?
Try with screen on - normally I think that should run for 6 hours or so. Using that as a reference, you can check to see if the energy stored in the battery is normal. It doesn't look like your OS is staying overly active to me.
Hi bjorninge,
Every time after you flash a new ROM you should calibrate your battery.
Get the app "battery calibration" from the market and follow instructions and please report back whether you can achieve better performance.
Cheers,
bamthwok
bjorninge said:
I am having huge issues with my battery on my galaxy s2. It drains really fast, 60% over the last 15 hours this night when the phone has been idle. This has been an issue for about a week now; I cannot seem to find a solution? I have tried various roms, wiping and doing a clean install, but the problem continues. Currently using lightening rom 3,2.
Do anyone know what can be causing this battery drain? Is the battery defective??
Click to expand...
Click to collapse
I have a similar issue, as was the same with my captivate. I have stock ROM on my GS2 though, the way I got it out of the box pretty much. Android OS takes up most of the battery usage. I don't know what it is. Widgets updating constantly? The constant syncing from Gmail/push email?
Well that's surprising! Awake and Screen On bar is quite low and totally synchronized, yet 60% drain, now I gotta say it's weird.
bamthwok said:
Hi bjorninge,
Every time after you flash a new ROM you should calibrate your battery.
Get the app "battery calibration" from the market and follow instructions and please report back whether you can achieve better performance.
Cheers,
bamthwok
Click to expand...
Click to collapse
Tried calibrating the battery, but it doesn't seem to help too much
yugotprblms said:
I have a similar issue, as was the same with my captivate. I have stock ROM on my GS2 though, the way I got it out of the box pretty much. Android OS takes up most of the battery usage. I don't know what it is. Widgets updating constantly? The constant syncing from Gmail/push email?
Click to expand...
Click to collapse
Unfortunately, I have the same issue as you've described above. I am running on stock KE2 kernel and the battery drain is quite a lot. The 'Android OS' is always consuming a lot of processor time on standby mode.
This needs to be fixed A.S.A.P.!
Download and install the app BetterBatteryStats from Android section, it is a very useful app which will show what Awaking the device from deep sleep and processes too. For me, it was the damn Latitude stuff going on background and wasn't letting the device to go to deep sleep.
Regards.
Sent from GT-I9100
Thanks for the tip. I have downloaded the app now. what spesifically should I look for?
You just look under 'Wakelocks' and you will know what apps are causing the Awake, then you could take further steps.
Regards.
Would be great if you could look at the screenshot and tell me if something is wrong. Also, after the battery calibration, I've "only" lost 26% the last 7 hours mostly idling. I don't see anything abnormal in the screenshot I provided :/
Well nothing is wrong imo as everything is very low. You should check those which are using more than 10 mins Wakelock, some seconds doesn't matter actually. And you can post any query further to the original thread of this app, here,
http://forum.xda-developers.com/showthread.php?t=1179809
Regards.
OK, So I'm now back to 12% battery usage (from 100% to 88%) with 17 hours and 30 mins on battery, which IMO is normal.
What did I do? Well, I removed the battery and put the rest of the phone into the stove for an hour on 50-60 degreed celsius. My 98% android OS usage is gone and the battery works as normal .I also had problems with the phone constantly going into "car mode" which is now gone.
I got some tips around the internet that my issues were all related to moisture on the inside of the phone.

Battery drain issue.

Hi guys,
Is anyone having battery drain issues with their new sgs3's?
With my one it wouldn't last 12 hours without dying. Also if its at 100% it'll drop to 70% overnight while i sleep (6-7 hours) and thats with power saver on, sync off and running juicedefender.
Today I factory reset the phone and only installed flash, whatsapp and dolphin browser. Have wifi on, sync, data, gps and bluetooth off. Havent got pictures of battery stats yet since I only reset it half an hour ago.
So is anyone else experiencing battery drain? if so have you fixed it? and how?
Are there any apps I should be aware of that drain the battery?
I would remove juice defender.
Uninstall lightflow app if you are using it.
Use betterbstterystats to identify any wakelocks. The xda thread of the same name will be able to help with solutions.
Other than that follow general tips on increasing battery life that are found all over xda.
This device is easily capable of much better battery life than you are getting.
Good luck.
Sent from my GT-I9300 using xda premium
Something wrong with your battery maybe? This phone is easily one of the longest lasting smart phones I've used
Sent from my GT-I9300 using XDA
I lost only 8 percent at night's . Install bad ass battery monitor and find the culprit app
tapatalked from galaxy s3
uf21 said:
Hi guys,
Is anyone having battery drain issues with their new sgs3's?
With my one it wouldn't last 12 hours without dying. Also if its at 100% it'll drop to 70% overnight while i sleep (6-7 hours) and thats with power saver on, sync off and running juicedefender.
Today I factory reset the phone and only installed flash, whatsapp and dolphin browser. Have wifi on, sync, data, gps and bluetooth off. Havent got pictures of battery stats yet since I only reset it half an hour ago.
So is anyone else experiencing battery drain? if so have you fixed it? and how?
Are there any apps I should be aware of that drain the battery?
Click to expand...
Click to collapse
No issues at all so far, in my case. In fact this is the first Android phone I've owned that has no battery-related issues
Based on my previous experience what you can try doing is (a) install CPU Spy to see if your phone is entering 'deep sleep' appropriately (b) install BetterBatteryStats to identify offending applications.
Even the 'Battery' section in settings is useful -- just check if any apps are keeping the phone awake for longer than you've actually used them ('Stay Awake' number).
ok well ive installed bad ass battery monitor since its free. Also since I did factory restore i charged it to full and in 1 hour 44 mins it used 7% on idle. Going to charge it to full again and use it normally to see how it is.
Only apps ive installed is XDA, badd ass battery, dolphin browser and whatsapp.
maybe you have samsung widgets etc set to refresh every hour or shorter. Or could be Whatapp
psp888 said:
maybe you have samsung widgets etc set to refresh every hour or shorter. Or could be Whatapp
Click to expand...
Click to collapse
That's after the factory reset. Before I had a more stuff installed.
Right now it's been about 3.5 hours and I'm at 74% with light use.
Sent from my GT-I9300 using XDA
That's definitely not right. Perhaps you have a dodgy battery? Can you find an app that measures the batteries mha. I use battery monitor pro. I will post a screenshot for comparison.
Sent from my GT-I9300 using Tapatalk 2
i have a problem with battery also... when it goes 100% and i unplug the charger ii falls directly to 99% i tried everything wipe battery stats left the phone 5-6 hours to charge but nothing...
maybe i need a new battery? can i try anything else?
[email protected]@xyS said:
i have a problem with battery also... when it goes 100% and i unplug the charger ii falls directly to 99% i tried everything wipe battery stats left the phone 5-6 hours to charge but nothing...
maybe i need a new battery? can i try anything else?
Click to expand...
Click to collapse
Don't be concerned by this. It appears to be normal behavior on this phone.
Sent from my GT-I9300 using Tapatalk 2
corrsea said:
That's definitely not right. Perhaps you have a dodgy battery? Can you find an app that measures the batteries mha. I use battery monitor pro. I will post a screenshot for comparison.
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
Just woke up and about to start work (Australia time). Ive taken a bunch of screenshots from stock battery monitor and from bad ass battery monitor. Will post up when I get home.
Also I installed battery monitor pro but it wont let me select 2100mAh. when I put it 2100mAh and press ok it just goes back to 1500mAh. Battery is currently at 36%.
uf21 said:
Hi guys,
Is anyone having battery drain issues with their new sgs3's?
With my one it wouldn't last 12 hours without dying. Also if its at 100% it'll drop to 70% overnight while i sleep (6-7 hours) and thats with power saver on, sync off and running juicedefender.
Today I factory reset the phone and only installed flash, whatsapp and dolphin browser. Have wifi on, sync, data, gps and bluetooth off. Havent got pictures of battery stats yet since I only reset it half an hour ago.
So is anyone else experiencing battery drain? if so have you fixed it? and how?
Are there any apps I should be aware of that drain the battery?
Click to expand...
Click to collapse
Make a search for BetterBatteryStats in xda, install, learn how to use it and identify the cause of the drain
uf21 said:
Just woke up and about to start work (Australia time). Ive taken a bunch of screenshots from stock battery monitor and from bad ass battery monitor. Will post up when I get home.
Also I installed battery monitor pro but it wont let me select 2100mAh. when I put it 2100mAh and press ok it just goes back to 1500mAh. Battery is currently at 36%.
Click to expand...
Click to collapse
Just a guess bit that might indicate that your unit has been shipped with a dodgy battery. I would get it tested and replaced.
Sent from my GT-I9300 using Tapatalk 2
Not too happy with my battery either. Fully charged over night and its down to 89% 1hr 30 later. Is that normal? However, you did mention lightflow earlier though which I have installed - Is that a massive battery drain? My battery stats seem to show display as being the big culprit but I have brightness set to it lowest setting.
Also, can't seem to find battery monitor pro on play?
Not too happy with my battery either. Fully charged over night and its down to 89% 1hr 30 later. Is that normal? However, you did mention lightflow earlier though which I have installed - Is that a massive battery drain? My battery stats seem to show display as being the big culprit but I have brightness set to it lowest setting.
Also, can't seem to find battery monitor pro on play?
It's wifi, don't use it in sleep mode. There's a bug with it right now that keeps it awake.
Sent from my GT-I9300 using XDA
SlimJ87D said:
It's wifi, don't use it in sleep mode. There's a bug with it right now that keeps it awake.
Sent from my GT-I9300 using XDA
Click to expand...
Click to collapse
Would you not want wifi active in sleep mode so you are still getting emails etc?
rendez2k said:
Would you not want wifi active in sleep mode so you are still getting emails etc?
Click to expand...
Click to collapse
No, I have a data plan. But trust me wifi is the culprit. I have a topic on this in the general section.
Sent from my GT-I9300 using XDA
SlimJ87D said:
No, I have a data plan. But trust me wifi is the culprit. I have a topic on this in the general section.
Sent from my GT-I9300 using XDA
Click to expand...
Click to collapse
I'm on Omega V4.0 and with wifi always on, fully charged 3 hours back and when i woke up it's 95% remaining. So about 1.66% loss per hour in sleep mode. With regular usage and installing and testing different roms and backing up etc them i easily get about 8~10 hours. Phone's made in Korea and battery mfg date is 2012.5.6.
Plus tons of widgets on home screens.

Help please: battery woes, stock ROM, no root

I'm trying to assist a non-technically inclined friend to troubleshoot her battery life issues. She's on a stock JB Vodafone ROM, and she lives a long way away, so me just going to see her and rooting the phone is a no-no.
Her battery dropped from 99% - 47% overnight, with the main culprits being android system, followed by device idle and cell standby quite a long way behind. The phone had wifi and mobile data switched off during this period.
I know android system is an umbrella for all sorts of processes that go on in the background, but since she isn't rooted I can't use Better Battery Stats to drill down and try and find the cause of her wakelocks. She doesn't have many apps installed at all, mainly just what came with the phone.
Is there some general stuff that I can do to try and eliminate any obvious causes of this battery drain? Any suggestions at all would be welcomed
setspeed said:
I'm trying to assist a non-technically inclined friend to troubleshoot her battery life issues. She's on a stock JB Vodafone ROM, and she lives a long way away, so me just going to see her and rooting the phone is a no-no.
Her battery dropped from 99% - 47% overnight, with the main culprits being android system, followed by device idle and cell standby quite a long way behind. The phone had wifi and mobile data switched off during this period.
I know android system is an umbrella for all sorts of processes that go on in the background, but since she isn't rooted I can't use Better Battery Stats to drill down and try and find the cause of her wakelocks. She doesn't have many apps installed at all, mainly just what came with the phone.
Is there some general stuff that I can do to try and eliminate any obvious causes of this battery drain? Any suggestions at all would be welcomed
Click to expand...
Click to collapse
Install gsam from play and let it run over night. Use it to inspect apps, but then toggle the view from battery drain to number of times waking device. Typical culprits are sync with numerous accounts and location services. Google Now has been know to beat up location services. Next install air push detector and remove any apps it detects.
Hope this helps.
Sent from my Nexus 7 using Tapatalk 2
wraith404 said:
Install gsam from play and let it run over night. Use it to inspect apps, but then toggle the view from battery drain to number of times waking device. Typical culprits are sync with numerous accounts and location services. Google Now has been know to beat up location services. Next install air push detector and remove any apps it detects.
Hope this helps.
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
Does GSAM require root?
setspeed said:
Does GSAM require root?
Click to expand...
Click to collapse
No
Sent from my Nexus 7 using Tapatalk 2
I used to have that problem
setspeed said:
I'm trying to assist a non-technically inclined friend to troubleshoot her battery life issues. She's on a stock JB Vodafone ROM, and she lives a long way away, so me just going to see her and rooting the phone is a no-no.
Her battery dropped from 99% - 47% overnight, with the main culprits being android system, followed by device idle and cell standby quite a long way behind. The phone had wifi and mobile data switched off during this period.
I know android system is an umbrella for all sorts of processes that go on in the background, but since she isn't rooted I can't use Better Battery Stats to drill down and try and find the cause of her wakelocks. She doesn't have many apps installed at all, mainly just what came with the phone.
Is there some general stuff that I can do to try and eliminate any obvious causes of this battery drain? Any suggestions at all would be welcomed
Click to expand...
Click to collapse
When I upgraded my phone to JB i had to charge my phone twice a day, so I decided to do a factory data reset and now my battery life is about 20 hours, I'm installing one by one all the apps that I had and until now I haven't had that problem anymore.
You could tell her to do the same, and let me know if it worked. Good luck!
tutan_kbron said:
When I upgraded my phone to JB i had to charge my phone twice a day, so I decided to do a factory data reset and now my battery life is about 20 hours, I'm installing one by one all the apps that I had and until now I haven't had that problem anymore.
You could tell her to do the same, and let me know if it worked. Good luck!
Click to expand...
Click to collapse
I had the exact same problem, but on ICS. I figured that Fast Dormancy was the culprit, keeping my phone awake for almost half the time it was out of charger. It solved itself on Jelly Bean, but I read a tip somewhere that might help.
1. Remove battery for about a minute. Re-insert battery.
2. When phone is fully charged, ONLY remove it from charger when screen is on and phone unlocked. If not, then remove battery and start over.
Dont know if this helps, but give it a try. Worth a shot. If not, factory reset is an option. Better Battery Stats is also good for checking wich processes keep the phone awake.
Gl

Battery lasts very short!

I have had my Galaxy S2 for almost 2 years now and I'm still going with the stock battery and it have worked great but some time around the start of Novmber I rooted and installed CM 10.1 and since then it feels like my battery life have become worse.
I now run CM 11, but it's still the same with battery life or even worse.
My phone never last a full day with normal usage. Today it went from 100% to 9% in less than 5 hours with only ~37 minutes of screen on time.
Todays usage: http://i.imgur.com/Adl7YQv.png http://i.imgur.com/G80vf2e.png http://i.imgur.com/YtcqKh7.png
Also, when listening to music on Spotify (offiline playlists) it draws battery like hell, it lasts maybe 3-4 maximum of listening. And when playing games with the charger connected it drains battery faster than it charges the battery.
What could be the problem here? Would really like to fix this problem but I do not want to go back to the stock Samsung software. Please ask questions if you have to (if you need some more information or such) and I'll reply as fast as possible.
Edit: http://i.imgur.com/th4Nalh.png (see my second post)
Fixoon said:
I have had my Galaxy S2 for almost 2 years now and I'm still going with the stock battery and it have worked great but some time around the start of Novmber I rooted and installed CM 10.1 and since then it feels like my battery life have become worse.
I now run CM 11, but it's still the same with battery life or even worse.
My phone never last a full day with normal usage. Today it went from 100% to 9% in less than 5 hours with only ~37 minutes of screen on time.
Todays usage: http://i.imgur.com/Adl7YQv.png http://i.imgur.com/G80vf2e.png http://i.imgur.com/YtcqKh7.png
Also, when listening to music on Spotify (offiline playlists) it draws battery like hell, it lasts maybe 3-4 maximum of listening. And when playing games with the charger connected it drains battery faster than it charges the battery.
What could be the problem here? Would really like to fix this problem but I do not want to go back to the stock Samsung software. Please ask questions if you have to (if you need some more information or such) and I'll reply as fast as possible.
Click to expand...
Click to collapse
Install BetterBatteryStats (google for download link on xda) and look what's draining your phone.
Your signal is very bad, that drains battery too.
Christiaan91 said:
Install BetterBatteryStats (google for download link on xda) and look what's draining your phone.
Your signal is very bad, that drains battery too.
Click to expand...
Click to collapse
So I installed BetterBatteryStats but as I restarted my phone the stats were reset and I can only view the stats for the current session, I will monitor it again sooner and remember to not restart the phone. However, when I restarted my phone it went from about 50% to 15% instantly, how did that happen? It has happened once before while running CM 10.1 also. Could it be that the phone just showed 50% but it really was 15%?
Picture of the battery drop is in the first post as I can't post links in replies (new user under 10 posts).
Also, how would be the best way to share my BetterBatteyStats? The included share feature just left me with an .txt that's a bit hard to read.
From the screenshots i can see your phone is always in search of signal.
Change the modem or pit it on gsm network for the time being
Further, the battery drop of restart is due to chip not behaving. Or battery is dying.
Change the battery is what i advise
Sent from my GT-I9100 using xda premium
Fixoon said:
So I installed BetterBatteryStats but as I restarted my phone the stats were reset and I can only view the stats for the current session, I will monitor it again sooner and remember to not restart the phone. However, when I restarted my phone it went from about 50% to 15% instantly, how did that happen? It has happened once before while running CM 10.1 also. Could it be that the phone just showed 50% but it really was 15%?
Picture of the battery drop is in the first post as I can't post links in replies (new user under 10 posts).
Also, how would be the best way to share my BetterBatteyStats? The included share feature just left me with an .txt that's a bit hard to read.
Click to expand...
Click to collapse
It's rather the other way around. I had these drops tens of times. Most of the times, if I leave my phone in deep sleep, it will go up again. So in fact the 15% is 50%(minus a percentage for rebooting).
Look what other people are posting in that thread and read the op before posting. But I think a txt file is good enough.
First try to find an explanation for this battery drain, before buying a new one.
Verstuurd vanaf mijn GT-I9100 met Tapatalk
vishal11in said:
From the screenshots i can see your phone is always in search of signal.
Change the modem or pit it on gsm network for the time being
Further, the battery drop of restart is due to chip not behaving. Or battery is dying.
Change the battery is what i advise
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
I'm not really sure about how I "Change the modem or pit it on gsm network for the time being", if you could explain that it would be sweet.
I have only used my phone very little today as I have been distracted with other things and I slept all day so battery have been ok. I will return with results another time when I have been using my phone as I usually do.
Fixoon said:
I'm not really sure about how I "Change the modem or pit it on gsm network for the time being", if you could explain that it would be sweet.
I have only used my phone very little today as I have been distracted with other things and I slept all day so battery have been ok. I will return with results another time when I have been using my phone as I usually do.
Click to expand...
Click to collapse
Go to settings>more settings> mobile networks > change it to gsm
Try this first. If this resolves good otherwise find a suotable modem compatible with your area (search xda) and flash the modem zip file via recovery
Sent from my GT-I9100 using xda premium
I cannot find the GSM option there, got nothing from googling either.
Included a picture of what it looks like.
Sent from my GT-I9100
Fixoon said:
I cannot find the GSM option there, got nothing from googling either.
Included a picture of what it looks like.
Sent from my GT-I9100
Click to expand...
Click to collapse
Prefer network type, use 2G.
Mostly it has better connection, but not good for internet
GreekBlood said:
Prefer network type, use 2G.
Mostly it has better connection, but not good for internet
Click to expand...
Click to collapse
2g is gsm mode
Sent from my GT-I9100 using xda premium
I have monitored my phone with BetterBatteryStats for a few days now and I have posted in their thread and some people there helped me to reduce battery use from 6.3%/h to 2.0%/h in idle (on 3g with fast dormancy disabled). I uninstalled some apps and disabled sync on some other.
I have a question about Spotify also, when I play music from Spotify it seems like it uses to much battery. I use watchdog and I get alerts sometimes that it uses 40%+ cpu, that doesn't seem right does it? And when I open CPU-Z it shows that cpu is at least 20%+ in use all the time with no other program running, that doesn't seem right either. Anyone have any ideas about this?
After uninstalling Google now my battery lasts a bit longer...
Sent from my Galaxy S²
First of all, DON'T buy stuff before you try going to stock rom, you can get back anytime from your nandroid backup. Battery problems are very hard to track, someone already suggested betterbatterystats, try finding it yourself with that, and if you fail you can;
1- Wipe everything and run the phone with only betterbattery stats installed and see the problem,
2- Go to stock rom and see if your problem persists without any apps installed.
Edit: If your cpu is misbehaving (even in stock), there is nothing you can do since its a hardware problem, you need to go to service centre.

Battery drain

I've come from using the ipad air to the Z2 and over night the battery drains by over 50%.
See attached.
I didn't use the device at all and stamina mode was on. This is frustrating since the ipad can stay in standby for days without even 5% drain.[emoji15]
Anyone?
Need help here guys!
Haychy said:
Need help here guys!
Click to expand...
Click to collapse
Well, for starters, not sure if the battery temperature chart you attached will help.
So you say it goes from 100% charge to 50% overnight? If so,you got some serious issues there. Typical loss is from 3-5%.
But 50 is absurd.
When you check the battery usage, what kind of usage is going on? Display of course is a biggie and uses the most. It's possible some application is keeping the tablet awake/display on. This might explain it a little.
I will explain how to read it. If the usage chart states "Display 54%", then it means of the 50% battery you lost, the display was responsible for 54% of "that" figure. That's how to properly read it.
But you need to find out where the drain is. I suspect a "rogue" app or a bad battery perhaps. A rogue app can certainly cause it, as with running some strange mods that just don't get along well. So you are going to have to hink back and remember what you changed just before you noticed the drain.
You can install an app called Better Battery Stats, and it might actually pinpoint what is causing the severe drain.
You have already installed GSAM Battery Monitor, so you should be able to find the cause for your battery drain.
Do you already have the Root Companion App installed, too? If not you probably should do so, this should provide better stats. Your tablet needs to be rooted, though.
After the drain appeared, open the GSAM-App and select ´App Usageˋ or so (my app is in German, so I donˋt know exactly). Then select ´Show Kernel Wakelocksˋ or so.
Now you should see how long your device was awake and what caused this.
Hi guys! Thanks for your help here.
I have found out now that the battery is definitely faulty as it went dead last night and I tried charging for 2 hours and it still won't turn on.
I am sending it back for a replacement.
Again thanks for your help
Haychy said:
Hi guys! Thanks for your help here.
I have found out now that the battery is definitely faulty as it went dead last night and I tried charging for 2 hours and it still won't turn on.
I am sending it back for a replacement.
Again thanks for your help
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No problem. At least you know the cause. Personally I can't recall a bad battery on a new tablet, but I would think it's possible as many tabs as are sold. Sucks you got one though.

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