What are you all getting for stand-by battery life? I get a drop of about 2-3% per hour. That's close to normal for a phone (1-2%/hr) but seems terrible for a tablet. My ORIGINAL galaxy Tab 10.1 would be down to like 95% charge after a day of stand-by whether it be on stock ROM or CM ROM. Running the same apps for the most part. I'll post a screen shot later but is this normal? I don't see any rogue apps sucking battery life. (Used betterbatterystats, gsam, etc...)
Didn't think I'd have to charge this thing every day like a phone, especially after using the Galaxy Tab for the past 2 years and having no issues with battery life. Is this normal for the NEW Nexus 7?
Update #1: As I stated on page 5, Wiped Dalvik & cache and wiped device. Stand-by battery life is still atrocious after doing all that. 100% down to 81% while on stand-by.
Update #2: Back to all my apps installed. Putting the tablet in airplane mode doesn't help stand-by time much, if at all
Update #3: As I stated on page 6, I installed CM 10.2 last night. Left my tablet unplugged overnight. This morning: After 9hrs on battery, my battery went from 100% and stayed on 100%!! Wow! Now we're cooking. That's with Airplane mode off as well.
Update #4: As posted on page 7:
Ever since going to CM 10.2, I've had approx 1% battery drain every 2-3 hours on stand-by. I can live with that.
On my second (2013) Nexus 7, I was never able to update the OS. The installs kept failing. So I manually updated to JSS15J. Stand-by was still terrible. Then I was stuck on JSS15J. I had to again manually update to JSS15Q. I'm happy to report that on Stock, rooted JSS15Q, I'm getting a battery drain of approx 1% per 3-4 hours at this point.
Update #5: As posted on page 8:
I'm back to rooted stock JSS15Q on both tablets. Both Tablets have adequate stand-by times. I lose about 3-7% PER DAY (24hrs) while on Stand-by.
froggydoddy said:
What are you all getting for stand-by battery life? I get a drop of about 2-3% per hour. That's close to normal for a phone (1-2%/hr) but seems terrible for a tablet. My ORIGINAL galaxy Tab 10.1 would be down to like 95% charge after a day of stand-by whether it be on stock ROM or CM ROM. Running the same apps for the most part. I'll post a screen shot later but is this normal? I don't see any rogue apps sucking battery life. (Used betterbatterystats, gsam, etc...)
Didn't think I'd have to charge this thing every day like a phone, especially after using the Galaxy Tab for the past 2 years and having no issues with battery life. Is this normal for the NEW Nexus 7?
Click to expand...
Click to collapse
2-3% per hour?
Not normal at all...
I'm not sure what is normal but I think I'm losing 1% every 4 hours
I will test it today.
How good is the battery when you use the tab?
Sent from my Nexus 7 using xda premium
Here's a screenshot. Seems to me like there's a lot of battery drain for an idle tablet. No?
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Sent from my Nexus 7 using XDA Premium HD app
I haven't really noticed yet when I use it. I have 2 new Nexus 7's. Each configured differently. Both seem to drain faster than expected on stand-by. Root method wouldn't have anything to do with it eh?
Sent from my Nexus 7 using XDA Premium HD app
Mine battery life. Has been vary good
Sent from my Nexus 7 using XDA Premium HD app
a) install GSAM battery monitor (the phone version is fine) to get better battery usage info
b) to each their own, but I have both of my N7s configured to turn WiFi off in standby. FWIW, I tried the setting to have WiFi on when power connected, but it wasn't seeming to turn off..)
c) I'm seeing standby of 3+ days at this point.. obviously, will need a few more weeks of usage to get a more reliable sampling.
Losing about 2% every 8 hours.
Sent from my Nexus 7 using xda premium
Yeah that seems to be a lot...
I've been happy with the battery so far as you can see in the attachment. Hope you figure it out...
Sent from my Nexus 7
You must be doing something wrong. I average less drain than that even when including screen on time.
Sent from my Nexus 7
phositadc said:
You must be doing something wrong. I average less drain than that even when including screen on time.
Sent from my Nexus 7
Click to expand...
Click to collapse
I wouldn't jump to the conclusion that the OP is doing something wrong.
Before I turned absolutely everything off, Google Play Services was using, on average 25% of my batter with hours of wakelocks on a single charge. But this wasn't every time. I'd reboot, and all of a sudden, it'd stop.
Personally, I don't think it's right that we have to disable something that's a core part of android to get decent battery. Just last night, with nothing running, no screen, no apps updating, wifi off, mine drained 11% of battery in 7 hours. That's also not right. But Better Battery Stats is not showing any strange or new wakelocks.
What I'm saying is that Android doesn't seem to act consistently with the way it uses battery. It's not necessarily user error.
Going anywhere from 30-45min per 1% upwards of 2 hours 30min per 1%. Depends on whats running in the background.
Yesterday I was doing 30min per 1% and found out that my game of Real Racing was still playing sound in the background! With more memory keep forgetting that more things can run in the background.
Mine literally doesn't drain at all when on idle. Overnight I usually don't lose anything, and if I do it is only down 1%
Sent from my Nexus 7 using xda app-developers app
I lose about a percent 3 hours on standby so definitely solid standby
Sent from 4.3'd Paranoid Android Note 2 using xda app-developers app
I lost 4 percent overnight and into the afternoon. I hadn't used it at all.
I fap to the porn forums on Tapatalk 2
2% per four hours, most of it thanks to Facebook appon the background, and i had to unistall the messenger because THATwas a battery sucker =(
Mine currently averages 1% every 5+ hrs, so its pretty solid. Only checked today because I have been using it quite awhile for the past few days.
i lost 0% overnight last night but usually around 1% overnight but i'm using a custom kernel and it's UV
I was losing the same per hour, until I discovered the WiFi setting to turn off the WiFi when in standby. Now I lose 2-3% overnight, rather than per hour.
This is the first charge we've let it standby much. Losing about 1% on Paranoid Android ROM with green power premium battery management app overnight, maybe 2% idling through the day and evening.
Sent from my Nexus 7 2013 using xda app-developers App
This is with all apps set to not update, Wi-Fi supposedly off during sleep, about two hours of Netflix and the rest idle. Needless to say, this is not what some of you are getting.
That almost horizontal bit in the middle, directly above the "47" in the total on time in pic #3 is what I'm aiming for. What happened then? I changed Wi-Fi from always on to never on during sleep. It then levelled off for a bit, I watched some Netflix, stopped all apps, went to sleep and it started draining FASTER than it had when wi-fi was always on. How the hell is this possible?
Edit to add: No apps running in the recent apps screen, all superfluous running apps stopped after the huge drain from Netflix (which, incidentally, only used 6% of battery per 40min show when I first used it - it's getting worse!) I've now also set everything to not update in the "data usage" system setting. I don't think this should be necessary just to get decent battery life, but I'll se how that goes, I guess...
Sent from my Nexus 7 using xda app-developers app
Related
Hello All,
I'm in need of advice if this is down to battery calibration or I have a faulty battery.
I got a replacement Nexus 4 3 days ago and I have been using it as normal. But I have noticed something strange going on with it.
I charged my phone to 100% and put my phone into airplane mode overnight, as I did with my Galaxy Nexus (It saves battery and I have a house phone for emergencies if somebody wants to contact me). I wake up the next morning around 9 hours later, I lose 1% battery which is normal, but when I use the phone for, say, 20 seconds, the battery instantly drains down to 95%. When I turn the screen off, and leave it until I get into work. I get into work 30 minutes later, turn the screen on and use it for a further 40-50 seconds, the battery then goes down to 92%, and the same thing goes throughout the day. I'm currently at 77% which only 12mins screen on time.
Would this be down to calibration? I haven't actually calibrated the battery and I rooted and flashed a custom ROM on the first day.
I had similar issue on my old, broken Nexus 4 so its not a coincidence.
Any help is appreciated.
-N
I wouldn't worry about it. It's common with new phones (and new ROMs mind you) for the battery life reading to be a bit weird. Ultimately you'll still get the same battery life as normal, it's just the reading that will take a little time to become accurate as it calibrates itself.
Try Batterycalibration:
https://play.google.com/store/apps/details?id=com.nema.batterycalibration
When I first got an extended battery for my old Xperia X10 I would often see the battery life *apparently* going up after going down, without actually charging.
OverTheBelow said:
I wouldn't worry about it. It's common with new phones (and new ROMs mind you) for the battery life reading to be a bit weird. Ultimately you'll still get the same battery life as normal, it's just the reading that will take a little time to become accurate as it calibrates itself.
Try Batterycalibration:
https://play.google.com/store/apps/details?id=com.nema.batterycalibration
When I first got an extended battery for my old Xperia X10 I would often see the battery life *apparently* going up after going down, without actually charging.
Click to expand...
Click to collapse
Thanks for this. I'll check it out.
Reminds me about HTC Sensation. It behaved so strangely with the battery readings. Jumped many percentages at once, or stayed at 100% for a while. Also after rebooting, the reading might have been quite different each reboot.
I truly, deeply, did NOT like it. It was horrible to keep track of the real juice level the battery had.
So I wonder if anyone else is seeing this behavior?
weird im getting 2 days usage with average use im really happy with the phone and battery
Fihlvein said:
Reminds me about HTC Sensation. It behaved so strangely with the battery readings. Jumped many percentages at once, or stayed at 100% for a while. Also after rebooting, the reading might have been quite different each reboot.
I truly, deeply, did NOT like it. It was horrible to keep track of the real juice level the battery had.
So I wonder if anyone else is seeing this behavior?
Click to expand...
Click to collapse
Same with me when I had a sensation. It would also randomly turn off.
Sent from my Nexus 7 using xda premium
Nitroz said:
Hello All,
I'm in need of advice if this is down to battery calibration or I have a faulty battery.
I got a replacement Nexus 4 3 days ago and I have been using it as normal. But I have noticed something strange going on with it.
I charged my phone to 100% and put my phone into airplane mode overnight, as I did with my Galaxy Nexus (It saves battery and I have a house phone for emergencies if somebody wants to contact me). I wake up the next morning around 9 hours later, I lose 1% battery which is normal, but when I use the phone for, say, 20 seconds, the battery instantly drains down to 95%. When I turn the screen off, and leave it until I get into work. I get into work 30 minutes later, turn the screen on and use it for a further 40-50 seconds, the battery then goes down to 92%, and the same thing goes throughout the day. I'm currently at 77% which only 12mins screen on time.
Would this be down to calibration? I haven't actually calibrated the battery and I rooted and flashed a custom ROM on the first day.
I had similar issue on my old, broken Nexus 4 so its not a coincidence.
Any help is appreciated.
-N
Click to expand...
Click to collapse
I just thought its normal, for the first couple cycles, and since I flash a rom quite often was hard to pinpoint any of my battery drain problems, eventually though I found that my battery drain issues, were from the CPU not switching back to the 384mhz slot properly, set my min cpu speed with voltage control and now my drain issues are fixed, and I dont have those haywire readings.
OverTheBelow said:
I wouldn't worry about it. It's common with new phones (and new ROMs mind you) for the battery life reading to be a bit weird. Ultimately you'll still get the same battery life as normal, it's just the reading that will take a little time to become accurate as it calibrates itself.
Try Batterycalibration:
https://play.google.com/store/apps/details?id=com.nema.batterycalibration
When I first got an extended battery for my old Xperia X10 I would often see the battery life *apparently* going up after going down, without actually charging.
Click to expand...
Click to collapse
Calibrating the battery with that app does nothing. The reason you see the battery graph go up without charging after usage is because the graph is more of an "estimate". If you are using it extremely heavily for a long period of time it will give an "estimate" of where it is and then when you stop using it, it will realize it is no longer under load and appear to "recharge".
Sent from my Nexus 4 using Tapatalk 2
maniAK- said:
weird im getting 2 days usage with average use im really happy with the phone and battery
Click to expand...
Click to collapse
Is your phone in airplane mode?
Sent from my Nexus 4 using xda premium
Locksmith81 said:
Is your phone in airplane mode?
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
haha nope only have it in 3G if ii used 2G and juicedefender i could probably get 2.5 days out of it then, all i did was 5 complete charges and discharges when i got the phone and only use wall charger not USB charge
How many hours do you end up getting out of it before it dies? And what settings do you get out of that?
I don't pay attention to my battery every few minutes, but look at what I get out of a whole day. Depending on usage, I get 2% to 8% drain per hour. On average, it's closer to 6%. Hope that helps.
The day I calibrated my battery (the second day after I bought the Nexus 4 last week):
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haha, took another half an hour after that of the phone just idling with screen on full brightness till it finally shut off.
OverTheBelow said:
The day I calibrated my battery (the second day after I bought the Nexus 4 last week):
haha, took another half an hour after that of the phone just idling with screen on full brightness till it finally shut off.
Click to expand...
Click to collapse
How do you get it down to 1%? Mine always shuts off when it's about 3% and doesn't let me keep it on.
Just power it back on after shutdown. I get quite about more juice out of it.
BTW, noticed that it uses far less power over the weekend, when at home and constantly on WiFi. I have a feeling the signal amplifier is not very efficient.
Sent from my Nexus 4 using xda app-developers app
This morning i woke up the battery was at 92
when i turn on wifi and browse for like
a minute the battery falls to 87
the phone was brand new stock rom and kernel
Sent from my Nexus 4 using xda app-developers app
I would say these things happen, atleast to me also. Best bet is to look at longer time intervals and average the battery usage. Install Better Battery Stats and it can help give you a general idea of what is causing battery drain.
I've had the phone go 10 hours in overnight and not budge from 100% and show a similar drop to what you''ve had on light use after.
sucre213 said:
This morning i woke up the battery was at 92
when i turn on wifi and browse for like
a minute the battery falls to 87
the phone was brand new stock rom and kernel
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
I had this exact problem and RMA'd. It may be an issue of power cycling the battery so many times but I didn't want to take the chance. My new phone has a strong battery that lasts 5 hours on average.
avink said:
I would say these things happen, atleast to me also. Best bet is to look at longer time intervals and average the battery usage. Install Better Battery Stats and it can help give you a general idea of what is causing battery drain.
I've had the phone go 10 hours in overnight and not budge from 100% and show a similar drop to what you''ve had on light use after.
Click to expand...
Click to collapse
So do you want to replace it ? To be honest, the battery is the only issue i found about this phone . I mean for a phone that has 2100mAh battery and 28nm CPU, the battery performance is only a little bit better than my i9000, that's disappointing...
dralways said:
I had this exact problem and RMA'd. It may be an issue of power cycling the battery so many times but I didn't want to take the chance. My new phone has a strong battery that lasts 5 hours on average.
Click to expand...
Click to collapse
I was going to say these forums have the worst reasons to RMA. Then I saw the username and suspicion was confirmed.
Sent from my Nexus 4 using Tapatalk 2
sucre213 said:
This morning i woke up the battery was at 92
when i turn on wifi and browse for like
a minute the battery falls to 87
the phone was brand new stock rom and kernel
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Had the same issue b4 getting it bricked... sent for RMA !
joshnichols189 said:
I was going to say these forums have the worst reasons to RMA. Then I saw the username and suspicion was confirmed.
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
Lmfao what the hell is your problem, kid?
PUBLIC ANNOUNCEMNET, THIS CREEPY KID FOLLOWS MY POSTS ON XDA JUST TO POST BRAINLESS, SPINELESS REAPONSES TO MINE. PLEASE BEWARE!
sucre213 said:
This morning i woke up the battery was at 92
when i turn on wifi and browse for like
a minute the battery falls to 87
the phone was brand new stock rom and kernel
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
its the battery bug...hops in between... if this time is ur only problem....it may not come back again....
dont rma just for that... if it comes often then u can
dralways said:
Lmfao what the hell is your problem, kid?
PUBLIC ANNOUNCEMNET, THIS CREEPY KID FOLLOWS MY POSTS ON XDA JUST TO POST BRAINLESS, SPINELESS REAPONSES TO MINE. PLEASE BEWARE!
Click to expand...
Click to collapse
Lol you are some kind of self centered to think someone follows you around. You just happen to post useless information in almost every. Single. Q/A thread.
Sent from my Nexus 4 using Tapatalk 2
Off topic I know but if anyone knows of an option to block a member on this forum so that their posts become invisible, please PM me.
Edit: nevermind figured it out, had to use browser.
sucre213 said:
This morning i woke up the battery was at 92
when i turn on wifi and browse for like
a minute the battery falls to 87
the phone was brand new stock rom and kernel
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Its probably because you turned on wifi at that point, while you were browsing the phone is also checking for updates in the background
I've definitely had this problem.
I was getting really good battery life. I've had GSam battery monitor installed since opening and my average is showing at 21h 18m. Yet in the past 2 or 3 days the battery life has fallen off a cliff. I've had about 7.5hrs use so far today, with well under an hour of screen on time, and yet am at 30%.
The big change is battery drain in inactive states. I used to be able to leave it unplugged overnight and the GSam graph would basically be flat. I might lose 1 or 2 per cent. The other night I lost 40%.
The main differences in the GSam app usage section is that the Kernal (Android OS) is now sky high (13.2% for today). I'd hardly registered that as anywhere near a top used before. Chrome seems to be eating up background battery too now, whereas it never used to.
The only change in usage is that I bought a Maxell Qi charging pad, and have used it once or twice. I have to admit, I'm a little concerned. For now, I'm currently on stock everything.
I have same problem whit my Nexus 4.
I charged it today from 15% to Full and then unplugged it and gone to caffe bar whit my friend for a 3 hours and then went home.
That means my Nexus 4 was full time on sleep mode,but when i checked battery % its was on 97% thats pretty much for standby isnt it??
Mediaserver was on top whit 85% and Sleep mode was second whit 10%.
But i think i found solution for this battery drainage.
1.If you have battery drain issue turn off you Nexus 4.
2.Let it be off for an 1 or 2 hours.
3.Turn it on.
4.There should be no Mediaserver battery drain.
NOTE:If you turn you device off again for 1 or 2 hours problem will come back.
For now problem is somehow solved for me whit this Turning off for several hours.
Please report if there is success!!
Actually dropping tot 97% in 3 hours of standby does not sound like a problem. Also depends a lot on the signal quality during standby.
Dropping from 100% to 98-97% goes very quick on my phone. That's a matter of calibration of the battery meter. After that little drop it works like I expect it would.
Remember that the percentage is just an interpretation of battery voltage expressed in percentages. It's an estimation instead of an exact figure.
My nexus was dying after 3-4hrs of standby....with no use and data/WiFi off.
Also seemed like the phone took forever to charge. It got to a point that I turned it off to ensure I would be able to make 1 or 2 short calls during the day
It also stayed burning hot.
RMAd it and new phone has No issues.
Easily gets through day and night with very heavy use. I still haven't updated to 4.2.1.
Sent from my Nexus 4 using xda app-developers app
Okay so here is my screenshots.
One from early morning and after work.
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Sorry for Croatian i forgot to change to English in settings.
Karlo666 said:
Okay so here is my screenshots.
One from early morning and after work.
Sorry for Croatian i forgot to change to English in settings.
Click to expand...
Click to collapse
I'm confused. What's your issue? If I had 16 hours use with only an 8% drop in battery I would be ecstatic. I'd have about 75% use during that time ... on a good day. On a bad day, it would have died after 12 hours.
stenard said:
I'm confused. What's your issue? If I had 16 hours use with only an 8% drop in battery I would be ecstatic. I'd have about 75% use during that time ... on a good day. On a bad day, it would have died after 12 hours.
Click to expand...
Click to collapse
Dont you read?
I left phone home not useing it at all and its full time sleep mode
My battery is acting weird lately as well. It actually went up charged to 98% to charged in the span of one hour
what the heck?
Mine fell like that when I went out in the cold. 30% in one minute. Then I stayed on 3% for 45 minute till I found a charger. Hmmmmm
Sent from my Nexus 4 using Tapatalk 2
I think our 2012 nexus 7 standby time is pretty bad..but i think it's the most case for many android devices. However, as we know the new nexus 7 2013 has smaller battery, but it's standby time is SIGNIFICANTLY longer. I heard over night, only about 2 percent drops, similar to iPhones iPads and even playbook when I had it. My 2012 nexus 7 drops 2 percent per hour, not per overnight.
What I'm wondering is that is this due to the snapdragon processor being more power efficient when idle? My nexus 4's standby time is incredible as well, but don't know if it's because of 4.3 update or not. I used to have Galaxy S2, which had a snapdragon S3 (the one before krait), and standby time on that was also horrible. Never got though a day, battery was always out at 3pm..
I do have some apps on my nexus 7, but I don't have too many either. I' not really an "app" guy. I have also tried Greenify, but it's pointless because I DO want to get some notifications from Email, Weather, etc. I don't have everything syncing that often.
I believe 2 percent per hour isn't really bad, and I don't think there is something wrong with my tab. But I really would love super long standby like the new nexus 7 2013. Will certain ROM in the developer section help? I believe I have Vanir 4.3 or something installed, and haven't changed for a while.
Also the nexus 7 2013 and nexus 4 with 4.3's super long standby is with WiFi ON. I'm wondering if they are due to SD s4 pro chip being well optimized with android 4.3 for battery efficiency or something.
Please reply!
Thanks.
Download an app named BetterBatteryStats. Start it and let it run for a whole battery cycle (charge it, unplug and then do what you usually do with your Nexus). Then you gotta check your Kernel WakeLocks (they are eating your battery when your screen is off). When you find out which ones are the problem you should post it here, on the forum and hopefully somebody will help you .
Basically saying: when you enter Android settings and here you check your batterry stats you want to have your awake bar fully covered by screen on bar (like this: http://img706.imageshack.us/img706/8633/131d.png).
Also disable 3g and wifi over night or find an app that will do it for you.
Here's a handy guide to improving battery life:
http://forum.xda-developers.com/showthread.php?t=1909996
Yeah....you have something draining your battery. I get like 2 percent drop over night on the original N7.
Read the like in my signature. Its in an S2 forum....but pretty much is the same for any device.
I can get 4 days on standby....barely touching it of course. 2 solid days on average with normal use.
______________________________
Sent from my cellular telephone. Battery problems? >>>> http://forum.xda-developers.com/showthread.php?t=2461864
Hmm..I am charging my tab right now. I'll try the methods suggested, and update.
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Above are the screenshots. I'm using gsam. Better battery stats app is a paid app, so I chose this.
Do you think, from the screen shot above, that Google services is draining my battery? I'm not sure if this is only from me unplugged this tab for about an hour, or for the entire 2 days me plugging and unplugging time to time.
Thanks in advance for your help.
Also to Sheo above, awake and screen on are definitely different . Does that mean my battery is draining?
Thanks. And I guess it wasn't 2 days. 1 day and 5 hours I guess, instead of 2 days I said in my previous post.
Every time you unplug your phone, gsam resets. So those stats will be off. Charge it fully, and let it go til its near dead. Like 10 percent. Then check out gsam. Cpuspy would be a good thing to get to....to see if its deep sleeping and for how long. Just reboot when fully charged, or after unplugging go into cpuspy and reset stats. So it will track your full drain.
Hit the drop down on the app screen in gsam. Check kernel wakelocks....times waking device and time held awake. I am not sure its Google. It only held your phone awake for 2 minutes.
______________________________
Sent from my cellular telephone. Battery problems? >>>> http://forum.xda-developers.com/showthread.php?t=2461864
kj2112 said:
Every time you unplug your phone, gsam resets. So those stats will be off. Charge it fully, and let it go til its near dead. Like 10 percent. Then check out gsam. Cpuspy would be a good thing to get to....to see if its deep sleeping and for how long. Just reboot when fully charged, or after unplugging go into cpuspy and reset stats. So it will track your full drain.
Hit the drop down on the app screen in gsam. Check kernel wakelocks....times waking device and time held awake. I am not sure its Google. It only held your phone awake for 2 minutes.
______________________________
Sent from my cellular telephone. Battery problems? >>>> http://forum.xda-developers.com/showthread.php?t=2461864
Click to expand...
Click to collapse
Okay it's been several hours now after I unplugged and left it idle. I'm not really sure about the gsam results, so here are the screenshots.
Thanks for helping me.
Btw these 3 screenshots are from the kernel wake lock.
Thanks.
kj2112 said:
Yeah....you have something draining your battery. I get like 2 percent drop over night on the original N7.
Read the like in my signature. Its in an S2 forum....but pretty much is the same for any device.
I can get 4 days on standby....barely touching it of course. 2 solid days on average with normal use.
______________________________
Sent from my cellular telephone. Battery problems? >>>> http://forum.xda-developers.com/showthread.php?t=2461864
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Me too, sometimes overnight draining is 0%.
sw6lee said:
Above are the screenshots. I'm using gsam. Better battery stats app is a paid app, so I chose this.
Do you think, from the screen shot above, that Google services is draining my battery? I'm not sure if this is only from me unplugged this tab for about an hour, or for the entire 2 days me plugging and unplugging time to time.
Thanks in advance for your help.
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Click to collapse
You can get better battery stats free here on xda, just in case you want to give it a try.
http://forum.xda-developers.com/showthread.php?t=1179809
Sent from my Nexus 7 using xda app-developers app
Hey guys I have no idea what happened to my tablet, but since yesterday, my tablet standby time is really good. Today, I unplugged 4 hours before, and right more, it still says 100% . Does gsam also save battery? When I had my honeycomb tablet back in the day, it was dropping only 2 percent per overnight and I haven't seen this on any of my other tabs after. But it's amazing to have this long standby time again. I was thinking short standby time was just one of the things that android was not good with. Now I'm happy thanks guys for your help!
A few days ago I tried to turn on my Nexus 7 expecting well over 50% of battery left. The device wouldn't turn on, after thinking it must have glitched I plugged it in and turned it on and noticed it was on 0% battery. Here's a screenshot.
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Thinking it was some weird bug I fully charged the nexus, I also reset CPU Spy to keep a log of processor activity. Today I turned on the nexus expecting above 50% battery again, having used it only last night, to be confronted with this...
Here is the CPU Spy log for the same time period...
To me that looks fine. 93% in deep sleep, yet the battery takes a nose dive. Does anyone have any idea what's going on? This is the first 2 times it's happened, before I was getting 10+ days on a single charge without heavy usage. The nexus 7 is 100% stock.
Possibly a app update?
I was just looking through to see if anyone else had this problem and saw your thread. I was at 70% when I went to sleep last night and battery was at 0% when i woke up (more like -5% cause i had to charge it 10 minutes to get it power up at 0%). Im running unofficial omni and have never had this issue before. My only guess is its a google app that recently updated killing the battery? I cant check to see what app was using what battery percent since it shutdown but I am going to monitor my apps battery percent over the next day or two and will post if i find anything. (Im thinking g+ since that app usually takes up close to a gig of data and I had just wiped it with clean master )
I was thinking it could be an app too, I don't have this tablet rooted though so can't use better battery stats, and CPU Spy is confusing me by showing that for 93% of the time it was in deep sleep. Surely for an app to drain a battery so fast, with screen off, it would need to be out of deep sleep mode?
Your not alone. Same thing happened to me the other day. Just assumed it was Google play services acting up and didn't look any further into it. Seems to be just fine now.
Sent from my Nexus 7 using xda app-developers app
devilsmack said:
Your not alone. Same thing happened to me the other day. Just assumed it was Google play services acting up and didn't look any further into it. Seems to be just fine now.
Sent from my Nexus 7 using xda app-developers app
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Me too!
But sure if mine's better, but it may be showing signs of improvement this morning. The only thing odd I noticed was one of my Google accounts had a sync error yesterday. It didn't show up in the notifications bar, I had to look the Google accounts settings. Could be total coincidence.
If the battery lasted for 5 days then this isn't abnormal. Get wakelock , see what's hogging CPU and stuff.
Sent from my Nexus 7 using xda app-developers app
Mine has nosedived to. I usually get flat lines when the tablet is asleep but lately it's just a descending line. Awake time vs screen on time is very close so not sure what's draining it. I do notice Google search audio in is showing itself more in the partial wake lock
Sent from my Nexus 5 using Tapatalk
Yes something is definitely wrong. I fully charged my nexus again, then used it for about 3 hours of screen on time on the first day, which brought it down to about 65%, then woke up this morning about 8 hours later to see it was at 38% taking the now familiar nose dive. Once again I checked CPU Spy and the entire time it is apparently in deep sleep mode. I don't understand it.
Anyway before work I decided to turn off wifi, to rule out it being a wifi issue or sync problem, now after work I see the battery nose dive has continued on the same trajectory, down to 5% with wifi and in deep sleep mode. Now down to 2% in the time it took me to upload the image and type this out. I'm starting to think my battery might be on it's way out.
Here's a capture of todays battery stats.
So is this just on stock roms then? Or are any of you running CM or something else?
I'm fully stock. Also since first coming here to start this thread, I've unlocked my bootloader to install and lock in one of the touchscreen software images posted in these forums. Obviously I had to do a complete factory reset to unlock the bootloader. The problem has persisted.
I've now charged the phone to 12% then left it for a couple of hours. It stayed at 12%. I ran a few processor heavy apps like Quadrant to just get the battery moving and got it to 11%, left it for 30 minutes, came back and it's still at 11%. So it doesn't seem like there is an issue simply at lower percentages.
On all 3 occasions before, the battery had drop normally to around 65-55% and then just died within the space of a few hours, with no screen time or processing going on. Almost like 55-100% was actually 95% of the battery and 0-54% was actually 5%. The test I just did seems to rule that out, now I'm going to charge to 100% and see if it happens a 4th time, which might take a day or 2.
I can't think of anything that could be causing this, the only new app I've installed over the last few days was Minion Rush, but if that's causing the battery drain it's doing it in a very stealthy way both bypassing the battery stats and CPU Spy's monitoring of the CPU state.
My battery life is mediocre at best
Sent from my Nexus 7 using XDA Premium 4 mobile app
I thought it had gotten better but it hasn't. I used to get 3 or 4 days standby but now I'm not even making it through a day. I haven't installed our changed anything. I'm on stock rooted and I flashed those bionic and dalvik optimizations a while back but that was way before this. Anyone have any ideas?
Sent from my Nexus 7 using xda app-developers app
I'm really starting to think my battery is just on it's way out. Yesterday I charged to 100% again, after around 2.5 to 3 hours of active use, then leaving it on in standby all night then some use this morning, I got it to 62%, which is roughly the percentage where it starts to drop sharply. I went out for about 3 hours, get back check the tablet and it's at 51%, and it's started the trajectory downwards.
I've just done a restart and will see if the decent continues. If so then there is literally nothing left I can think of that would be causing it other than a bad battery.
Good news. Switched to ART and battery has been better. Going 6 hours so far and only 2% battery drain. Could be art or could be wiping dalvik that helped. I may switch back later to see if it cleared up.
Sent from my SAMSUNG-SM-N900A using xda app-developers app
So an unusual turn of events to report. Mid nose dive I decided to do a restart and much to my surprise this stabilised the battery. Great news that it's not a physical battery problem, but now I have absolutely no idea what it is. CPU Spy still reports deep sleep mode during the dives and no stand out app shows up on the battery stats. Something fishy is going on with one of the apps.
Seems some of us experience the same issue. This became a recent issue. It wasn't like this before.
I thought it was Facebook causing the battery drain, but when I open up BBS and Wakelock detector, the tablet is in deep sleep well over the 90%.
The tablet used to last me about 5-7 days idle. Now? 2-3 days checking email, twitter, and couple minutes on Instagram. heh.
Same situation again, however this time the sharp battery decline happened a lot sooner, left tablet at 92% last night before sleeping, this morning it was at 70% on a sharp trajectory downwards. Again a reboot stabilised the battery. I'm now doing another factory reset, and will restore my account and only the most necessary apps like e-mail and skype. I did a factory reset earlier to unlock bootloader but straight after reinstalled all of my apps so one of them could be the problem. I'll post back with the results.
I had the same exact problem, my tablet would basically lose 50% over night. I was still getting decent on screen time but idle time was crap. I flashed slimkat and woke up to my tablet being at 80%. Much better Google obviously didn't do a good job on this rom for Nex7
Sent from my Nexus 7 using XDA Premium 4 mobile app
I'm doubting this is a ROM problem as there hasn't been an update for quite a while now and this problem only occurred for me in the last week or so. Before that I was getting over 10 days of standby time including 10-15 mins screen time a day on a single charge.
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I am only getting around 5-6 hrs of screen on time with moderate usage. Android system and android os are probably the main problem that is causing this battery drain. Can you guys show me how ur battery life is and if u are having the same problems.
Also does ur battery stats show mobile data turned on even when it is off??
That's not bad, it is average for a phone with such power. The Note 3 was the same way. That is why they made and sold the Zero lemon battery and case for it. Which was three batteries combined.
Mines been up 13 hours and is down to 57% with the screen being 37% of the load becuase I keep brightness on max at a times. I also have bluetooth on all the time for my car as well as SPARK looking for a connection all the time.
Yeah 5 to 6 hours of screen on time is pretty good. I would say if you want anything more you need to get an extended battery.
Let your WiFi sleep when screen is off.
dschachm said:
Let your WiFi sleep when screen is off.
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Click to collapse
If your wifi sleeps when the screen is off, it will use 3/4G to collect data. I wonder if that is better or worse?
I believe the wifi scanning will drain the battery more. If you are truely concerned, you can download deep sleep battery saver and it will turn everything off.
I consider that Pretty good battery life coming from the n5.
Here's my gn4:
Sent from my SM-N910P using Tapatalk
That's pretty good battery life. I've never had a phone that could make it more than 4-5 hours screen on, not without disabling half the **** I use.
Im at 39 percent after 16+ hours
Sent from my SM-N910P using XDA Free mobile app
I get the same 4 to 5 hrs screen time, which is amazing. what are u smoking, OP?
Sent from my SM-N910P using XDA Premium 4 mobile app
I got 24 hr screen on time today.....plugged in. I'm sure I can get longer screen time too!
I used the 50% off coupon code Samsung sent me for buying the phone to order the spare battery and charger from their store... After code it was only $20! Now I'm not worried about battery life lol. Just arrived yesterday
And THIS thread is the reason I'm looking forward to my upgrade date Nov 1st. My Nexus 5 tapped out after 6 hours with only 2 hours of screen on time.
Sent from my Nexus 5 using XDA Free mobile app
I've had 8 hrs of screen on time with moderate use on my note 3. Even the s5 that I've used gotten better screen on time than the note 4
Tried installing better battery stats, required install as system app and wasn't working.
Now it won't uninstall, reboots phone!
Can someone help?
Sent from my SM-N910P using Tapatalk
imex99 said:
Tried installing better battery stats, required install as system app and wasn't working.
Now it won't uninstall, reboots phone!
Can someone help?
Sent from my SM-N910P using Tapatalk
Click to expand...
Click to collapse
Remove it from your system apps
I'm actually very happy with my battery life. I had a rooted GS3 before the Note 4 and I bought the ZeroLemon extended battery for the S3. I had decent battery life on that but I use my phone so much, with the screen on, that I wanted to stay off the charger for more than 4-5 hours at a time.
I was concerned about the battery life with the Note 4 before I got it because I've never had a Galaxy Note before. I have to say that I absolutely love the phone and the battery life I've been getting! I'm not rooted, at least not yet. I'm getting 6.5 to just over 8 hours of screen on with moderate to heavy usage. I am on WiFi almost all the time. I hardly make or receive phone calls but I do text and use WhatsApp a lot. No Bluetooth, no NFC, haptic feedback turned off for everything, brightness turned down very low. Mobile data turned off when I'm home since I'm on WiFi. I use the s-pen quite a bit. I use Tasker to change some settings when I go out, come home, etc. I play games (Restaurant Story, Stand O' Food, and some others daily), watch YouTube, Facebook, XDA app, lots of reading articles using Chrome Beta, lots of apps that I'm sure don't tax the phone too much. I use the black background for every app that has it as an option. Now if I've been playing GTA: San Andreas then the battery crashes fast. LOL But that's expected.
Anyway, I'm just trying to give an idea of what I do on my phone. I consider my usage to be pretty heavy but everyone has their own opinion of what heavy or moderate usage means.
Edit: amazingly I just hit 9 hours of screen on. I'm down to 2%. Now that I hit 9 hours I can plug my charger in. LOL Saw it getting close so I waited.
Sent from my SM-N910P using XDA Free mobile app
Dont know about you sir but the battery is amazing on my end.....moderate use at work all day and the phone is still on 92%.....
died4u525 said:
I'm actually very happy with my battery life. I had a rooted GS3 before the Note 4 and I bought the ZeroLemon extended battery for the S3. I had decent battery life on that but I use my phone so much, with the screen on, that I wanted to stay off the charger for more than 4-5 hours at a time.
I was concerned about the battery life with the Note 4 before I got it because I've never had a Galaxy Note before. I have to say that I absolutely love the phone and the battery life I've been getting! I'm not rooted, at least not yet. I'm getting 6.5 to just over 8 hours of screen on with moderate to heavy usage. I am on WiFi almost all the time. I hardly make or receive phone calls but I do text and use WhatsApp a lot. No Bluetooth, no NFC, haptic feedback turned off for everything, brightness turned down very low. Mobile data turned off when I'm home since I'm on WiFi. I use the s-pen quite a bit. I use Tasker to change some settings when I go out, come home, etc. I play games (Restaurant Story, Stand O' Food, and some others daily), watch YouTube, Facebook, XDA app, lots of reading articles using Chrome Beta, lots of apps that I'm sure don't tax the phone too much. I use the black background for every app that has it as an option. Now if I've been playing GTA: San Andreas then the battery crashes fast. LOL But that's expected.
Anyway, I'm just trying to give an idea of what I do on my phone. I consider my usage to be pretty heavy but everyone has their own opinion of what heavy or moderate usage means.
View attachment 2986385View attachment 2986386View attachment 2986387
Edit: amazingly I just hit 9 hours of screen on. I'm down to 2%. Now that I hit 9 hours I can plug my charger in. LOL Saw it getting close so I waited.
Sent from my SM-N910P using XDA Free mobile app
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Wow that is awesome. I have never seen a device get that much screen on time without being rooted. Is it a software problem for me then that is causing a battery drain ?