Battery assistance - Nexus 4 Q&A, Help & Troubleshooting

Hey all,
Just switched over to hellscore from faux to see if it had any impact on my battery, but it doesn't appear to. I'm currently on the latest PA nightly and using Aviate. I think part of the issue is Skype not closing properly, but I've lost 8% battery in 1 1/2 hours with only 10 minutes of SOT. Please see screen shots below.
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Demonic240 said:
Hey all,
Just switched over to hellscore from faux to see if it had any impact on my battery, but it doesn't appear to. I'm currently on the latest PA nightly and using Aviate. I think part of the issue is Skype not closing properly, but I've lost 8% battery in 1 1/2 hours with only 10 minutes of SOT. Please see screen shots below.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
I use Hells Core and have to admit that it's the best kernel ever
The issue are wakelock which dont let your device go deep sleep
Use Greenify app from Play Store to hibernate apps which wake your Nexus
== Sent from my CarbonMako ?? ==

MaxFTW said:
I use Hells Core and have to admit that it's the best kernel ever
The issue are wakelock which dont let your device go deep sleep
Use Greenify app from Play Store to hibernate apps which wake your Nexus
== Sent from my CarbonMako ?? ==
Click to expand...
Click to collapse
Just installed Greenify. Now to figure out which apps to hibernate..
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Demonic240 said:
Just installed Greenify. Now to figure out which apps to hibernate..
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Click to expand...
Click to collapse
Hibernate all with GCM logo in the right
Those are the apps which MAY cause wakelocks
== Sent from my CarbonMako ?? ==

Related

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?
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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 expand...
Click to collapse
Do I need to be rooted for this?
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wws12 said:
Do I need to be rooted for this?
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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...

Bad battery life.

I only get 3 hours on screen time.
I used to get 6 hrs on my 8gb.
I got a 32gb now.
mk92595 said:
I only get 3 hours on screen time.
I used to get 6 hrs on my 8gb.
I got a 32gb now.
Click to expand...
Click to collapse
Cool story bro
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strafe_dog said:
Cool story bro
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Click to expand...
Click to collapse
Stfu if you don't wanna help, leave.
mk92595 said:
Stfu if you don't wanna help, leave.
Click to expand...
Click to collapse
You didn't ask a question...how is anyone supposed to help you with no details?
Sent from my Nexus 7 using xda app-developers app
It could be for a number of reasons. For one, is 3g on a lot? Do you game? Read Twitter, Facebook or Google+? Live WP, ect. We need more details please.
Saturny said:
It could be for a number of reasons. For one, is 3g on a lot? Do you game? Read Twitter, Facebook or Google+? Live WP, ect. We need more details please.
Click to expand...
Click to collapse
Stock everything, rooted. Wifi model. Use it for web and 15 min of gaming daily.
Try flash franco kernel or flash other rom !
mk92595 said:
Stock everything, rooted. Wifi model. Use it for web and 15 min of gaming daily.
Click to expand...
Click to collapse
Better battery stats for the wakelocks and cpu spy to see if your device is deep sleeping
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kilometers4 said:
Better battery stats for the wakelocks and cpu spy to see if your device is deep sleeping
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Click to expand...
Click to collapse
I agree with kilometers4. Better battery stats & cpu spy work well. I also suggest you download a battery calibration app. When I updated to Jelly Bean on my S3, the battery life sucked. But once I calibrated for a few cycles, it's great now. Same for my Nexus 7.
try switching to official CM10.1. Im getting 9hrs screen on time with it
strafe_dog said:
You didn't ask a question...how is anyone supposed to help you with no details?
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
I'm gonna hafta concur with this guy. However, I was having the same problem.
I used my keyboard to type into the search bar "bad battery life",
I looked at some similar titled threads and decided to look through this one
http://forum.xda-developers.com/showthread.php?t=1783390&page=3&highlight=nexus+7+not+charging
I followed the directions.
I did profit.
Next time use the search bar, and don't get butthurt when someone teases you a little. It's called the internet get used to it. And your a senior member you should know that.
When my nexus was brand new, i also had a few battery issues. But got it fixed after fully discharging the device a few times. Make sure it charges to 100% inbetween.
Verstuurd van mijn Nexus 7 met Tapatalk
If you are running 4.2 i would reccomend you switch back to 4.1
Inverro route
Try to disable NFC
It has to be a rogue app, I'm getting way over that on my stock n7 32gb, stock 4.2.1
jc
Sent from my Nexus 7 using xda app-developers app
Are toy charging with the OEM charger. I know there is a deep sleep
Bug on some devices where you have to reboot after reaching a full charge
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I find it kinda strange you only getting 3 hours out of it. On my Nexus 7 I can get little over 24 hours on a full charge. That's with basic web surfing, xda app, twitter and few YouTube videos.
Course if I do something more demanding like playing games I get less runtime on the battery.
Sent from my Nexus 7
I flashed Francis kernal and Cm10.1. Right now battery is 43% with 2 hours on screen time. So I format it and restore my apps using titanium backup?
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Can someone explain this

Google location services etc everything is turned off yet today is the first time I've seen this Google services at the top was 86% this morning what could it be
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You must check the wakelocks..
Thanks but I'm not sure what wake locks are how do I check
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Jellybean 4.2 sux, you have watch it like a hawk for runaway apps.
fix please Google
meangreenie said:
Jellybean 4.2 sux, you have watch it like a hawk for runaway apps.
fix please Google
Click to expand...
Click to collapse
This is true! I left buzzfeed on in the background and it took 25% of my battery life in 1 hour. It used more battery life than my pandora app. I couldn't quite figue that out.

Massive battery issues

Hello folks.
I'm currently on Aokp 4.2.2 unofficial with Francos r90 Kernel, bootloader and Radio are both updated. I'm suffering from massive battery draining. I guess something isnt letting my CPU sleep properly, as i always get messages like "100% awake while screen off" from battery stats plus. I'm just getting up to 2 hours screen on time, and battery is falling by about ~7% / hour With normal usage (whatsapp, News, xda) and like 15 Minuten screen on time in that hour. Also, see the attached Images. I sometimes have wakelocks by audioOut_2 and as you can See, maps is using more battery than the Display itself.
On an additional Note, GPS is always off, im using Taster to locate, but with cell near only.
Would be very Kind to help me out of this issues, thank you a bunch!
Sent from my Nexus 4 using xda premium
Turn off Location Services for a little bit to see if that helps.
You should try a program like autostarts, and don't allow things to run unless explicitly started by yourself. This way it'll help identify if there is an misbehaving program.
I saw you were using franco r90 which could be an issue. Try going back to the last stable
I think you will like this application.
https://play.google.com/store/apps/...GwsMSwxLDMsImNvbS5vYXNpc2ZlbmcuZ3JlZW5pZnkiXQ..
This simple application will make your annoying applications to go to sleep. Therefore your phone can finally go to sleep like it should when it's not in use. I see that Google maps seems to be the culprit in your battery drain. You can use titanium backup and delete it and install it back again from the play store. After that you can use the application that I've given you and force it to go tot sleep.
Here's the forum for the application:
http://forum.xda-developers.com/showthread.php?t=2155737
AW: Massive battery issues
Thanks guys! I disabled some Autostarts and greenified some apps. I'll Report the outcomes later today.
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JoeBananas_ said:
Thanks guys! I disabled some Autostarts and greenified some apps. I'll Report the outcomes later today.
Sent from my Nexus 4 using xda premium
Click to expand...
Click to collapse
If that doesn't work I recommend you flash the matr1x kernel I'm on it and I get very good life on this phone so yeah give it a try if u want
sent from my Nexus 4 in Equestria
Click it I dare you?
http://forum.xda-developers.com/showthread.php?t=1784401
AW: Massive battery issues
Thanks for your reply. Yeah im already thinking about flashing matr1x or trinity Kernels. How much screen on time Do you get with matr1x?
I reinstalled maps, greenified maps and facebook. Updated to Franco 92. Already getting better results with greenified maps, but i get following wakelocks:
"pm8921_eoc", "msm_otg" and AudioOut_2 and still notifications from bbs: 100% awake.
Apps running are: astrid, avast, Francos updater, Rom toolbox, Tasker
Sent from my Nexus 4 using xda premium
AW: Massive battery issues
Does anyone have some knowledge about How to identify why Android OS is consuming so much battery Life? While screen off some process is waking up the Device, up to 1.5 GHz.
Sent from my Nexus 4 using xda premium
I also have MASSIVE draining issues. Took my phone off charge around 9am this morning... 1hr screen time... 8% battery left and its only 13:45 Pacific time...
Latest Faux running in dual core ECO MODE underclocked to 1.3Ghz with Stock 4.2.2,,,, still get ****ty ass battery life...
AW: Massive battery issues
Do you see any wakelocks using the better battery stats app? Which apps are running?
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JoeBananas_ said:
Do you see any wakelocks using the better battery stats app? Which apps are running?
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Click to expand...
Click to collapse
I just bought it ( for $3), sooo now I have to wait and see what is causing this....
stealthj said:
I just bought it ( for $3), sooo now I have to wait and see what is causing this....
Click to expand...
Click to collapse
Cannot wait til you update us!
Coming from the iphone 4, good battery life is the most important thing i miss. I need a rock solid reliable phone or else would have started to mess around a read about Kernels to see how they may help with better battery life. My iPhone would last me 3-4 days of general use. To me General use is very light use..! With nexus it lasts max 1-2 days but more importantly i need to be concious what the battery level is. With th eiphone i never really bothered as i knoew i would get at least 2 days if not more.
AW: Massive battery issues
Still got audioOut_2 wakelock. Except that onr, everything is fine After Kernel update, greenifying and disabling Autostarts
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Phone doesnt go to deep sleep

I flashed 4.3 yesterday,at night phone drain too much battery nearly %30,how can i solve this?
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Google Maps wake lock is causing the issue.
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How to fix this?
I stopped location sharing etc. still no deep sleep?
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If you have your N4 rooted, you can "freeze" maps until they release a fix with apps like "root uninstaller". Maps won't launch anymore and can't cause any wake locks then.
If your phone is not rooted, there's no luck until Google releases a fix.
DecypherT said:
If you have your N4 rooted, you can "freeze" maps until they release a fix with apps like "root uninstaller". Maps won't launch anymore and can't cause any wake locks then.
If your phone is not rooted, there's no luck until Google releases a fix.
Click to expand...
Click to collapse
Yes i did that and phone goes deep sleep now
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dhurk said:
Yes i did that and phone goes deep sleep now
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Click to expand...
Click to collapse
dont do what he said. just use greenify instead
https://play.google.com/store/apps/details?id=com.oasisfeng.greenify
greenify maps.
zephiK said:
dont do what he said. just use greenify instead
https://play.google.com/store/apps/details?id=com.oasisfeng.greenify
greenify maps.
Click to expand...
Click to collapse
I tried that but maps isnt in greenify app list?
Ok i did it,installed maps manually then greenify it,thanks
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