I purchased a nexus 7 recently,updated to 4.3,locked and unrooted as of yet. I currently have 2 user accounts active on it. Since my first 100% charge, I have been getting tacky battery life. I follow the 100% charge and discharge till 1% method. Overnight with WiFi on and all apps closed,I'm getting a drop from 74% to 57% . Looking in the battery stats doesn't help as it doesn't show any unusual ongoing background activity. I'm also getting around 6 hours Screen on time,I could never exceed this mark. I only have the customary Google apps,Facebook,Twitter, instagram,pulse,and 3 games installed. What can be the reason of this ?
Sent from my Nexus 7 using xda app-developers app
Those apps keep running.. Also some third party apps push ads and also turn screen on, which could drain battery..
For better battery life, you can turn wifi off if not needed,.
Sent from my Nexus 7 using xda app-developers app
I tried with WiFi off one night, I got around 9% drain still. I kept the sync interval at the maximum in every data fetching app I have installed too.
Sent from my Nexus 7 using xda app-developers app
You might well try the app Better Battery Stats, and see what it believes is keeping your tablet from going into deep sleep. 9% drain overnight is not terribly excessive -- it should be more like 5%, I guess.
My 2012 nexus 7 had 51% before I went to sleep last night and when I woke up this morning it was completely dead. I didn't even get a charge icon when I plugged it in to charge. I had to leave it for an hour then tried again and it fired right up.. Hope I can see what's causing the drain with better battery stats
Sent from my Nexus 7 using xda app-developers app
I was using mine once in the morning,when the battery hit 4% it suddenly shut down. I tried to charge but the battery icon wouldn't show up. Started it finally using the tips on the Google support site. Must say,I've been plagued with battery issues. I'll try a factory reset and while on it unlock the boot loader too.
Sent from my Nexus 7 using xda app-developers app
I checked with BBS with WiFi off overnight. "PowerManagementService.wake lock" is keeping my N7 awake. Any solutions?
EDIT: I checked in partial wakelocks,AudioOut_2 was the highest at 30m runtime.
Sent from my Nexus 7 using xda app-developers app
Related
Hello-
Ever since I updated to 4.2 and especially 4.2.1, battery life has not been the same. Today I went from 100% last night to 73% in 22 hours just in standby. I didn't change any settings that I can remember. Can anyone please help with this?
Thanks,
wws12
Sent from my Nexus 7 using xda app-developers app
I had the same battery issues on 4.2 in standby...even with wifi disabled. I ended up flashing back to 4.1.2 and battery is back to normal. To me 4.1.2 is more stable and much smoother. Hopefully Google will fix these issues in the next update.
Sent from my Nexus 7 using xda premium
I noticed that a large portion of the battery is being used by something called "Media server" Any idea what that is or how to turn it off?
Sent from my Nexus 7 using xda app-developers app
I'm also noticing the same sleep mode battery drain on 4.2.1,around 1% per hour..
I need to root my tablet to downgrade?
Sent from my Nexus 7 using Tapatalk 2
Use media scanner root from the play site and disable the media scanner. Then this battery drain should reduce.
Sent from my GT-I9100 using xda premium
ashwinrajsr said:
Use media scanner root from the play site and disable the media scanner. Then this battery drain should reduce.
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Do I need to be rooted for this?
Sent from my Nexus 7 using xda app-developers app
wws12 said:
Do I need to be rooted for this?
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Yes. Root access is a must.
Sent from my GT-I9100 using xda premium
I think in my case most of the battery issues was from the device being new and the software stats still needed more time to be accurate, that has happened to me on my Sony tablet also..
Now I can see some real stats as I use better battery stats app for keeping track of the battery.
I use my tablet as a use when needed device because it's not my notifications device that is always connected, for that I use my smartphone. That said I turn on airplane mode when I'm not using it and sync when needed as well.
Só when my Nexus 7 is in sleep mode it has very few apps and services running other than the system ones.
So the stats I came up with are:
1% in sleep mode with airplane mode on and Google Now and Location History turned on..
And..
0.3% in sleep mode with airplane mode and Google Now plus Location History off..
So for me no Google Now as I don't need that much.. It lasts 3x more in standby without it... And the truth is, in my country Google now for me isn't that useful as it is although I'm sure someday will be..
Sent from my Nexus 7 using Tapatalk 2
It's strange...with stock 4.2.1 no root I haven't any battery drain... 0.7% /hour with wifi on and sync enabled...In the battery stats, even if in a hour i turn on the display on a minute, the display takes at least 40% of battery...
I just got my nexus 4.
Last night I charged the phone completely, disconnected if from charger and turned the phone off.
This morning when I turned it on the battery was drained 15% down to 75%
Does anyone else have this problem?
Defect with phone?
Thanks for help.
You have to let the battery settle and let the battery stats calibrate. The % that you had after rebooting is what you really have. The first time it wadjt showing the right amount.
Sent from my Nexus 4 using xda premium
android88 said:
You have to let the battery settle and let the battery stats calibrate. The % that you had after rebooting is what you really have. The first time it wadjt showing the right amount.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
He said he turned his phone off...
I don't see how it can lose 15% if it is completely shut off. That's weird.
Sent from my SGH-T999 using xda app-developers app
Crisisx1 said:
He said he turned his phone off...
I don't see how it can lose 15% if it is completely shut off. That's weird.
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
Then when he turned it on, he "lost" 15%. Like I said in my post, what it said before he turned it off was wrong. He didn't really lose 15%. It was just displaying the wrong thing.
Sent from my Nexus 4 using xda premium
You might have some apps running in the background that is preventing your device from going to deep sleep to conserve power. Check what's running in the background when your phone is off. You can use better battery stats app to check what's consuming your battery level.
Are your running a custom kernel? I've heard of a few cases with kernels where even though the phone is sleep and screen off just touching the screen will cause battery drain.
Sent from my Nexus 4 using xda app-developers app
I'm guessing you either meant it was at 85% or drained 25% down to 75
Either way this is common on a lot of phones now due to the way the battery gauge works. When you turn your phone off then on it doesn't always remember where it was so gives a value and then if it's under where it should be it soon recalculates and can either starts going up or stays on the same value for a long time. This has happened on both my old SGS2 and also my N4 for example this morning while my phone was being drained by the FB app keeping GPS on, I turned off location access and then restarted my phone which dropped a few extra % and then sat for a good few hours at that % even though I used my phone.
Moral to the story is don't always take what you see as true, give it time to settle and see how it goes over a few charging cycles.
Hi guys as the title says can you guys pls mention how much battery you lose overnight with which rom and which kernel..
i leave mine plugged in overnight, why would you not?
Also i have some weird behavior with my phone.. It lost lot of battery overnight.. Android os is drainin too much battery.. Check the screen shots and tell me if its normal..
simms22 said:
i leave mine plugged in overnight, why would you not?
Click to expand...
Click to collapse
The thing is that ramzan is going on.. So i plug it overnight then i unplug it when i wake up at 4am.. Then i go back to sleep at 5 am.. So cant plug it in again right..
zerohunk said:
The thing is that ramzan is going on.. So i plug it overnight then i unplug it when i wake up at 4am.. Then i go back to sleep at 5 am.. So cant plug it in again right..
Click to expand...
Click to collapse
i bump charge all day long at work, i have on all my androids for the past 5 years(almost 5). and yet i am very happy with my battery when im away from the charger all day too
I lose about 4%-5%.
Sent from my Nexus 4 using Tapatalk 4 Beta
zerohunk said:
Hi guys as the title says can you guys pls mention how much battery you lose overnight with which rom and which kernel..
Click to expand...
Click to collapse
0%-1% loss with wifi off, completely stock 4.3
Sent from my Nexus 4 using xda app-developers app
Max 2% since January. Regardless of the android version.
Totally stock
Sent from my Nexus 4 using xda premium
filthykid said:
Max 2% since January. Regardless of the android version.
Totally stock
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
failly said:
0%-1% loss with wifi off, completely stock 4.3
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
badboy47 said:
I lose about 4%-5%.
Sent from my Nexus 4 using Tapatalk 4 Beta
Click to expand...
Click to collapse
wow guys are you all serious??? i lose around 10-15 percent overnight man
Dude.. My phone was on 60 percent at 6pm once when I slept... Next morning at seven it was off... Wifi off data off.. All **** off... I dint even get a call or msg... Definitely not 1 percent I guess...
If I leave data and WiFi off, about 2% to 10% but that isn't usual. When I am home, I leave WiFi on and that gets my currents and YouTube video preloaded. 15% to 20% Max. I rarely leave it to charge overnight.
Sent from my Nexus 4 using xda app-developers app
zerohunk said:
wow guys are you all serious??? i lose around 10-15 percent overnight man
Click to expand...
Click to collapse
Yes ! you leave wifi or data on overnight?
Sent from my Nexus 4 using xda app-developers app
With data and WiFi on , if I fall asleep and my phones at 100%, it will be at 75 or so when I wake up
Sent from my Nexus 4 TMO @1.728 GHz on Stock 4.3.0
8 hours of sleep 0%. WiFi & Data off always. Rootbox ROM with Franco M3 Kernel. No of stuffs. Just default Franco settings.
Sent from my Nexus 4 using xda premium
failly said:
Yes ! you leave wifi or data on overnight?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
yes i do keep wifi/data on
any suggests ?
REBOOTED - nothing, drain battery like hell, lose about 30-40% in 5 hours...
I woke up with 15-20% battery drained... wtf guys ?
I kill all apps, turn of data, wifi and etc, still nothing...
BATTERY STATUS - messaging use 84% of battery... wtf ?
To all of you having problems with battery drain, you should know that last Google Maps update messed up the deep sleep state of the system.
I´m running Carbon ROM, but also tested with other 2 ROM´s and the results were the same, around 20%-25% battery drain over night.
I read that disabling "Reporting Location" and "Location History" under Location settings in the Google Settings app(the one with the green icon) helps a little, but still is an issue.
With these settings disabled, I get around 5% battery drain over night. Although the wakelock has decreased, is still there waking up the device. Already reported to Google to see if they can do anything to fix it. The wakelock appears as "Android System" or "Google Services".
Before update I had around 3% battery drain over night(around 8 hours) with WiFi.
Hope this helps.
:fingers-crossed:
As a battery life druggie, I get 1% max. Regardless rom. Usually wifi off and 2g data on. (wifi on is bad for HUMAN DEEP SLEEP).
A not sure useful or not hint, set pm.sleep_mode=1 in your build.prop
Disable everything you can think of. Wifi, gps etc.
Uninstall bloatwares, replace with downloadable ones, use greenify to freeze them.
5 %
Recently i noticed that my phone's battery begin drained at night during sleep like about 20% without any use.
i did turn off location services, Wi-Fi, GPS. I don't know what could be the problem for the battery to be drained.
Is there a way to check it?
Use BetterBatteryStats to find the issue. Do you use s2w or touch control? They drain some battery too
Hellsigh said:
Recently i noticed that my phone's battery begin drained at night during sleep like about 20% without any use.
i did turn off location services, Wi-Fi, GPS. I don't know what could be the problem for the battery to be drained.
Is there a way to check it?
Click to expand...
Click to collapse
Try this:
http://forum.xda-developers.com/showthread.php?t=2385843
Hope it helps.
:silly:
I checked battery in Settings and it shows 41% Phone idle and 26% Cell standby.
So i don't think Google Services is the problem here...
Sent from my Nexus 4 using xda app-developers app
maybe this:
http://forum.xda-developers.com/showthread.php?p=44537106#post44537106
^ I'm still on 4.2.2.
Sent from my Nexus 4 using xda app-developers app
I used to have a problem like this, install better battery stats and it will show exactly what is draining you battery, for me it was nfc being left on.
Sent from my Nexus 4 using xda premium
idd, use BetterBatteryStats (see XDA for free version).
Post results here..
My N10 has this 1 issues where the device keeps awake when the screen is on.
Is this normal ?
Can anyone help me
The device is stock unrooted.
ahodil55 said:
My N10 has this 1 issues where the device keeps awake when the screen is on.
Is this normal ?
Can anyone help me
The device is stock unrooted.
Click to expand...
Click to collapse
Did you mean when the screen is off? Because obviously it status awake while the screen is on. But there may be an app keeping it awake. Make sure all your apps are trusted
Sent from my Nexus 5 using xda app-developers app
when the screen is on. ive never experienced this when its on Jellybean 4.3
and all the apps ive downloaded are from Google Play Store of course.
anyone ???
ahodil55 said:
anyone ???
Click to expand...
Click to collapse
I'd go for a wakelock detecting app like "better battery stats" or "wakelock detector" to see which app could be the culprit. "Greenify" could then be used to block that app from keeping your tablet awake.
I personally do have no issues with standby whatsoever. I'd say I lose about 3-4% of battery during the day on 4.4. (WLAN and sync on all day, but I'm taking it to work where I have no WLAN I could use). I guess I had the same mimimum drain on 4.3. So standby couldn't be better on N10 in my opinion.
I only had one issue so far, where at about 25% of battery left it suddenly began to drain like 10-15% an hour, thus leading to my N10 shutting off after about 2 hours. No idea what caused that drain in standby.
I second that, get better battery stats or something similar to see what's keeping it awake.
Sent from my SGH-I747M using xda app-developers app
AFAIK, BBS needs root in order to use em. And i cant root the N10 as it belongs to my mother
You don't need root for bbs
Sent from my SGH-I747M using xda app-developers app
Same here...very bad battery after moving to kitkat..
This is what I get...which is atleast 50% worse off
Update :- the charging time seems to have gone up significantly for both USB and power socket.
Sent from my Nexus 10 using xda app-developers app
meletios said:
Same here...very bad battery after moving to kitkat..
This is what I get...which is atleast 50% worse off
Sent from my Nexus 10 using xda app-developers app
Click to expand...
Click to collapse
mhm ... will not install 4.4 if the battery life is that terrible. Did you guys control the typical Google apps, which usually like to eat a lot of battery?
I have this since 4.4.2 on my Nexus 10 and 7v2. Not on the 5. My N10 uses almost every juice for Android OS. Before it used 5% for 1-2 days for standby. Now 3 hours. See screenshot. Is this normal?
And it wasn't awake. See other screenshot.