Database Users

Battery issues with 4.2.1?

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.
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ashwinrajsr said:
Use media scanner root from the play site and disable the media scanner. Then this battery drain should reduce.
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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?
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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...

Battery goes from 14% to 1% in minutes.

Hi there
Yesterday my phone just went from 14% power (after giving me the usual battery warning) to 4% in like two minutes. The other days before that, it's been very shirt time as well.
I don't turn anything off (like 3G, sync, etc.) when I get the 14% warning, but going down 10% in few minutes seems a bit extreme.
Have anyone tried the same? Or can someone explain why?
Thanks in advance.
Sent from my Nexus 4 using xda app-developers app

Ham duden said:
Hi there
Yesterday my phone just went from 14% power (after giving me the usual battery warning) to 4% in like two minutes. The other days before that, it's been very shirt time as well.
I don't turn anything off (like 3G, sync, etc.) when I get the 14% warning, but going down 10% in few minutes seems a bit extreme.
Have anyone tried the same? Or can someone explain why?
Thanks in advance.
Sent from my Nexus 4 using xda app-developers app
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Click to collapse
Well at least you have no deep sleep issues. It can happen after a deep sleep period that the battery levels indicated are not up to date at the time it wakes up. Then comes a correction of the actual battery level.

Sv: Battery goes from 14% to 1% in minutes.
Okay, thanks a lot for the answer. So I should only begin to worry if it continues?
Sent from my Nexus 4 using xda app-developers app

Ham duden said:
Okay, thanks a lot for the answer. So I should only begin to worry if it continues?
Sent from my Nexus 4 using xda app-developers app
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Click to collapse
That probably will not happen, usualy only after a longer deep sleep period.

Ham duden said:
Hi there
Yesterday my phone just went from 14% power (after giving me the usual battery warning) to 4% in like two minutes. The other days before that, it's been very shirt time as well.
I don't turn anything off (like 3G, sync, etc.) when I get the 14% warning, but going down 10% in few minutes seems a bit extreme.
Have anyone tried the same? Or can someone explain why?
Thanks in advance.
Sent from my Nexus 4 using xda app-developers app
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Click to collapse
This used to happen to me. After calibrating the battery it hasn't happened again
Sent from my Nexus 4 using xda app-developers app

How
Ranaquajaro said:
This used to happen to me. After calibrating the battery it hasn't happened again
Sent from my Nexus 4 using xda app-developers app
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How did you calibrate the battery??

Manj0t.singh said:
How did you calibrate the battery??
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Search for batterycalibration on the app store. Just follow directions on the app
Sent from my Nexus 4 using xda app-developers app

[Q] Nexus 4 Battery Drain

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..

How much battery do you lose overnight?

Just curious because I lose about 7-8% overnight and I feel its a bit much. Feel free to share your results.
Sent from my Nexus 7 using Tapatalk 4

At most 3 percent, usually 1 or 2
Sent from my Nexus 7 using XDA Premium 4 mobile app

Doesn't it depend on widgets and how many apps are using Push?
Sent from my sweet Nexus 7 (2013)

0 for me. In fact, the battery gets charged to full over night. I put it on the wireless charger by the bed right before I go to sleep. :laugh:

My device sat unused for two nights and it only lost 6%.

i lost yesterday about 4% in 14 hours. do this ** settings- wifi - advanced - keep wifi on during sleep - only when plugged in ** you will see huge battery improvement. also you can use greenify app to hibernate apps that wake you tablet during sleep
Sent from my GT-I9505 using xda premium

VinBertinelli said:
Just curious because I lose about 7-8% overnight and I feel its a bit much. Feel free to share your results.
Sent from my Nexus 7 using Tapatalk 4
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Yeah I have the same battery drain. I have WiFi of during sleep.
Sent from my Nexus 7 (2013) using Tapatalk 4

GPS off?

Anderson2 said:
GPS off?
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Yes
Sent from my Nexus 7 (2013) using Tapatalk 4

big_b0sss said:
i lost yesterday about 4% in 14 hours. do this ** settings- wifi - advanced - keep wifi on during sleep - only when plugged in ** you will see huge battery improvement. also you can use greenify app to hibernate apps that wake you tablet during sleep
Sent from my GT-I9505 using xda premium
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Just wondering.. Is your auto sync off too?

Mine has been very good. Been unplugged for 7days 12hrs, WiFi on the whole time, couple hours of screen on time and still got 20% left. Overall I'm happy.
Sent from my Nexus 7 using xda app-developers app

7-8% for 8 hours. Using CM10.2 and greanify.

potofgold said:
Just wondering.. Is your auto sync off too?
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nope my Google location service, gps and auto sync on. but if u keep ur wifi off while screen is off auto sync will not work then when u turn ur tablet on wifi gets connected you get all the notifications. no point to get notifications on tablet while im getting those notifications on my phone. also ive noticed that the more you charge the battery it gets better
Sent from my GT-I9505 using xda premium

cowabunga said:
0 for me. In fact, the battery gets charged to full over night. I put it on the wireless charger by the bed right before I go to sleep. :laugh:
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Ditto. However, I did forget to plug it in one night an it was about 2-3%, FWIW...

My battery life has been terrible today...

As the title states, my battery life has struggled mightily today. Check out my pics, what do you think could be causing this?
Sent from my LG-D800 using xda premium

dude 3 hours awake time out of 5...thats an issue. you've got a wake lock somewhere. download wake lock detector
Sent from my LG G2 using Tapatalk 4

the 1positive with mine so far is the battery. i go all day (12-14hrs) with moderate use and still have 30% charge when i plug it in.

That's terrible. You got an app freaking out. I noticed a huge drop in battery life when I put on a different sms app.
Sent from my LG-D800 using Tapatalk 4

Thanks guys, I installed the wakelock app. I will see what's going on.
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What was the issue?
Sent from my LG-D801 using xda app-developers app

Install better battery stats.....maps and partial wakelocks seems to be killing you battery. BBS would give u a better indication of whats eating your battery
WizeGuyDezignz said:
As the title states, my battery life has struggled mightily today. Check out my pics, what do you think could be causing this?
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akong702 said:
What was the issue?
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Not sure what the issue is yet, I was charging my phone. Now I took it off the charger and have better battery stats installed. I will monitor it and let you know.
Sent from my LG-D800 using xda premium

Held awake for 3 hours because your screen was on for almost that long. Right?
Sent from my Nexus 4 using Tapatalk 4

one thing that really kills this battery is the setting under location access "wifi and mobile network location" if you have that enabled google services keep the phone awake and drain the battery. I disabled that and my battery last so much longer now.

Well guys, something is still eating my battery alive. I went to bed with over 40% battery and I woke up with 7% left.
Here are my screenshots from better battery stats. Can anyone figure out what's eating me alive?
Sent from my LG-D800 using xda premium

WizeGuyDezignz said:
As the title states, my battery life has struggled mightily today. Check out my pics, what do you think could be causing this?
Sent from my LG-D800 using xda premium
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Click to collapse
Use greenify....you will see improvements right away.
Hit thanks

WizeGuyDezignz said:
Well guys, something is still eating my battery alive. I went to bed with over 40% battery and I woke up with 7% left.
Here are my screenshots from better battery stats. Can anyone figure out what's eating me alive?
Sent from my LG-D800 using xda premium
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NLP-Network Location Process-seems to be your biggest issue. My best bet would be settings>accounts>Google>google+>location
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bova80 said:
one thing that really kills this battery is the setting under location access "wifi and mobile network location" if you have that enabled google services keep the phone awake and drain the battery. I disabled that and my battery last so much longer now.
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Thanks, I turned it off and will let you know if that was it.
lastdeadmouse said:
NLP-Network Location Process-seems to be your biggest issue. My best bet would be settings>accounts>Google>google+>location
Sent from my LG-D800 using Tapatalk 4
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I wasn't signed into Google+, so hopefully turning off the setting above will help. Thanks!
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lastdeadmouse said:
NLP-Network Location Process-seems to be your biggest issue. My best bet would be settings>accounts>Google>google+>location
Sent from my LG-D800 using Tapatalk 4
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Yeah, good tip. If that doesnt work, go to Maps and disable history and location reporting as well. Might want to disable Wifi and mobile network location under the global location settings as well. This prevents other programs from eating up battery trying to access location when GPS is off. Restart your phone after diasbling any of these, then check battery life

Ok guys, here is how my battery has been doing since I made the changes that everyone suggested. Am I in good shape?
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seems good. here was mine earlier though lol
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jayochs said:
seems good. here was mine earlier though lol
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Lol nice. The only complaint that I have about this is that I had to turn off every single location based setting in the phone. I've never had to do that on my previous phones. It never drained like this on my S4 with those settings on.
The root of my complaint is that I can't even get weather updates on my widget because it is all turned off. And I always like to have the weather widget on my main screen. Which single setting can I turn on to get weather updates? I will leave the other ones off.
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Getting eaten alive again. What are these top two things?
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Power management wakelocks in the kernel is a placeholder for partial wakelocks. Look at the partial wakelock list for details. I had a terrible *backup* partial wakelock that had a start count of 3000 within 8 hrs!!! It was killing my bat. Check yours, it might be that same if its not the location wakelocks acting up again