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[Q] Battery draining and high CPU load when idle

Hi everyone here
I got a concern about my TF101 Tablet.
When I switch my Tablet screen off and set the WiFi as turn off when screen off, my battery still drains extremely fast. From the pic you can see, my battery is running out from full to 10% in only 1day and 6 hours without any use. My GPS and bluetooth are also turned off in this period. From the pic you can also see my CPU load is over 30% at most of the time.
From the second pic, I can see the process "System" uses the CPU very hard
Can some one figure it out and I will appriciate it very much!

Here I have to bump...

wm2001wm2001 said:
Hi everyone here
I got a concern about my TF101 Tablet.
When I switch my Tablet screen off and set the WiFi as turn off when screen off, my battery still drains extremely fast. From the pic you can see, my battery is running out from full to 10% in only 1day and 6 hours without any use. My GPS and bluetooth are also turned off in this period. From the pic you can also see my CPU load is over 30% at most of the time.
From the second pic, I can see the process "System" uses the CPU very hard
Can some one figure it out and I will appriciate it very much!
Click to expand...
Click to collapse
I am seeing the exact same problem, not sure what the cause is either. I read somewhere about "wakelocks" where some app will try to keep the CPU awake when you try to go into standby and it results in high system usage.

Thank you for this thread, I am also having this problem. I think the problem for me may be because of Google Maps.
Basically, I'm running some tests now. I had massive battery drain overnight while I slept. The tablet would go from 90% down to 50% in an 10 hour period (4%/hr). It didn't matter if it was docked or not docked. I was running Google Maps v5.8.0 and saw some people post that the new version is eating up the battery. So I removed the updates for Google Maps and tried again.
Now I'm running v5.6.1 of Google Maps and the battery went from 100% to 42% in a 17 hour period with absolutely no use (3.5%/hr). I checked battery usage, and Google Maps is at the top and it's taking up 41% of what was used. That's ridiculous.
So now I'm going to install the latest Google Maps and see if this helps at all. I've also attached some screen shots of my latest tests.
Other details:
Wi-Fi is set to sleep when the screen turns off.
MobileDock Battery saving mode is checked.
Use location for Google Search is unchecked.

I did another test last night after having updated Google Maps to v5.9.0 (latest). I got the same results. Google Maps is eating through my battery when the tablet should be sleeping.
Here's the results:
The tablet was undocked, and fully charged.
I didn't touch the tablet for 15 hours.
The battery went from 100% to 55% in 15 hours = 3%/hr drain.
Google Maps was largest user of battery at 75%!!
I also did a reboot after I updated Google Maps to v5.9.0.
WTH is going on here?! Anyone have any ideas??

ScubaSteveo said:
I did another test last night after having updated Google Maps to v5.9.0 (latest). I got the same results. Google Maps is eating through my battery when the tablet should be sleeping.
Here's the results:
The tablet was undocked, and fully charged.
I didn't touch the tablet for 15 hours.
The battery went from 100% to 55% in 15 hours = 3%/hr drain.
Google Maps was largest user of battery at 75%!!
I also did a reboot after I updated Google Maps to v5.9.0.
WTH is going on here?! Anyone have any ideas??
Click to expand...
Click to collapse
Try turning off all location services (WIFI/GPS) and see if the problem goes away. I did something similar and the sleep mode CPU utilization dropped back to 1% or so. I haven't yet enabled the settings one by one to see which one cis causing the issue.

wilkster said:
Try turning off all location services (WIFI/GPS) and see if the problem goes away. I did something similar and the sleep mode CPU utilization dropped back to 1% or so. I haven't yet enabled the settings one by one to see which one cis causing the issue.
Click to expand...
Click to collapse
You are correct. I am able to turn the Airplane mode on and see virtually no battery drain at night. But this is rather annoying to have to turn on airplane mode every time you are done using the tablet and turn it back off whenever you want to use the tablet.
The best option would be to locate the source of this issue and fix that. Tonight I'll be testing Google Latitude turned off to see if this fixes anything.

As a test I turned back on location services (GPS/Google) but unchecked the use WiFi for location and found the problem went away overnight. Only a few % CPU use. Not quite as good as leaving in Airplane mode but close. Lost about 2-3% CPU over 7 hours. WiFi use setting is to disable with screen turned off.

So after my test last night, I still had massive battery drain.
I turned off Latitude as best I could last night and still same result. Google Maps is chewing up my battery like no other: from 100% to 52% in 15 hours with zero usage by me. Anyone have any other ideas? Any other apps that might be causing this?

ScubaSteveo said:
So after my test last night, I still had massive battery drain.
I turned off Latitude as best I could last night and still same result. Google Maps is chewing up my battery like no other: from 100% to 52% in 15 hours with zero usage by me. Anyone have any other ideas? Any other apps that might be causing this?
Click to expand...
Click to collapse
I had previously logged out of latitude and saw the same high drain result as you, so don't think it is that. When I disabled the WiFi location the drain stopped (leaving gps on). I agree it may be Google maps related since it uses the WiFi location services (since maps uses that service to locate the tablet along with gps).

I have a similar issue, but my problem is not with Google Maps. Instead, the main battery drain is "Android System." I usually leave my Transformer on standby 24/7 and used to only have to charge once a week. This problem appeared out of the blue a few days ago.
Google mail is the only thing on auto-sync, and this setting has never caused any issues in the past. Thus, I'm not sure why Android System is now suddenly waking up at random when asleep. You can see in the plot that System constantly requires 30% CPU usage once it happens, until I actually turn the device back on.
In addition, my wi-fi sleep policy is set to turn off when the screen is off. Recently, it seems it is always on, even when the device is asleep.
EDIT: The graphs from the OP suggest that our issue might be related, but the problem appears to manifest much more frequently for the OP. Crossing my fingers that next week's update somehow fixes this problem.

LagginTimes said:
I have a similar issue, but my problem is not with Google Maps. Instead, the main battery drain is "Android System." I usually leave my Transformer on standby 24/7 and used to only have to charge once a week. This problem appeared out of the blue a few days ago.
Google mail is the only thing on auto-sync, and this setting has never caused any issues in the past. Thus, I'm not sure why Android System is now suddenly waking up at random when asleep. You can see in the plot that System constantly requires 30% CPU usage once it happens, until I actually turn the device back on.
In addition, my wi-fi sleep policy is set to turn off when the screen is off. Recently, it seems it is always on, even when the device is asleep.
EDIT: The graphs from the OP suggest that our issue might be related, but the problem appears to manifest much more frequently for the OP. Crossing my fingers that next week's update somehow fixes this problem.
Click to expand...
Click to collapse
The system process was the same issue on my system as well (didn't show up as google maps). I confirmed that turning off the "Use Wireless Networks" under Location and Security stopped the constant 30% cpu usage when in standby.

After freezing Maps, which is the biggest culprit for me....i noticed, System Process' was way high now.
28%
After doing some searching.... came up with this
http://forum.xda-developers.com/showpost.php?p=16828183&postcount=605
At least for my case.

Google Maps battery drain Solved!
For me, I figured out the issue was Latitude.
I was getting bad battery drain overnight and Google Maps was the largest user by far. I finally signed out of Latitude completely. Battery drain dropped to around 2% (total) overnight! This is acceptable!
As it turns out, Latitude wakes up my device while it should be sleeping in order to update my location and therefore draining massive battery overnight. I'm going to post this as a bug with Latitude/Google Maps because this is causing waaaay too much battery drain.
So it looks like I won't be able to leave Latitude signed in. Once I'm done using it, I will have to sign out of Latitude. This way I can leave Wi-Fi on and set to turn off when the screen turns off. Thereby I get really good battery life again.
On a side note, my phone has the same behaviour, but I never noticed it because I'm usually charging my phone at night. So Latitude...basically...sucks (battery).

[Q] battery drain in standby, and Google play service problem

so I decided to charge my phone fully then leave it alone for 12 hours to see the standby drain, and This morning when I took a look and I was pretty disappointed. I attached pics, but as you can see, 12 hours of standby and 30 percent of my battery is gone. wtf? another time I did this a week ago with only 8 hours of standby, it drained 20 percent, which if scaled to 12 hours will become 30 percent. Why is the drain so high? Google play services is at the top of the list, and even with normal use it takes about 10 plus percent of my battery. my friends nexus 4, with basically the same apps I have (fb, messenger, Chrome, snapchat, bbm, etc) only had 10 percent after 12 hours. both our phones have the battery saving location enabled, radios on, but the only difference is that he wasn't connected to WiFi and I was. any suggestions? And yes I've looked around on the Internet at other people having the same problem and I still haven't found a fix

Lol sorry I forgot to add the pics in the first post

It's the WiFi. I had the really bad battery drain issue while connected to WiFi after the 4.4.2 update. I lost about 30% of charge after 4ish hours while connected. Currently I'm at 92% after 3 hours.
Try disconnecting from WiFi and redoing your test!

spitefulcheerio said:
It's the WiFi. I had the really bad battery drain issue while connected to WiFi after the 4.4.2 update. I lost about 30% of charge after 4ish hours while connected. Currently I'm at 92% after 3 hours.
Try disconnecting from WiFi and redoing your test!
Click to expand...
Click to collapse
oh wow, that might be my problem then. thanks a lot, I'll redo the test and see what happens, thanks

I haven't used WiFi at all today, my phone had been unplugged since 6 am and at 1pm today it's down to 57 percent. I have hardly used my phone today and the play services are killing it.

I think WiFi was my issue actually, I have kept it off all day and after 2.5ish hours I'm down to 72 percent battery, with an hour of screen on and using Google search quite a bit. the screenshot has screen and Google search at the top, Google play services hasn't been up in double digits at all

NuckFuggets said:
I think WiFi was my issue actually, I have kept it off all day and after 2.5ish hours I'm down to 72 percent battery, with an hour of screen on and using Google search quite a bit. the screenshot has screen and Google search at the top, Google play services hasn't been up in double digits at all
Click to expand...
Click to collapse
On your first screenshot Google play services consumed 34% out of 30% of your total battery loss, which is approx. 10% of your full charge. Within 12 hours this would be a 0.85% battery drain per hour because of gp services.
I did the math again for the second screenshot and Googe Play services consumed 0.7% per hour.
Doesn't feel like a big difference for me. If the time was actually less than 2.5 hours the drain could be equal.

George_Mn said:
On your first screenshot Google play services consumed 34% out of 30% of your total battery loss, which is approx. 10% of your full charge. Within 12 hours this would be a 0.85% battery drain per hour because of gp services.
I did the math again for the second screenshot and Googe Play services consumed 0.7% per hour.
Doesn't feel like a big difference for me. If the time was actually less than 2.5 hours the drain could be equal.
Click to expand...
Click to collapse
oh, well this is disappointing. that's so stupid, what is Google play services even for? and why does it have like an hour of keep awake time??

NuckFuggets said:
oh, well this is disappointing. that's so stupid, what is Google play services even for? and why does it have like an hour of keep awake time??
Click to expand...
Click to collapse
Go to Settings->Location->Google Location Reporting and set both to Off => no more battery drain

George_Mn said:
Go to Settings->Location->Google Location Reporting and set both to Off => no more battery drain
Click to expand...
Click to collapse
but then won't Google now not work anymore?

NuckFuggets said:
but then won't Google now not work anymore?
Click to expand...
Click to collapse
Google Now will still function. It just will not show cards based on location. Also when you disable or semi disable location sometimes Search start's keeping you're phone awake trying to find some location information. If this happens just force stop Google search or reboot the phone.

bblzd said:
Google Now will still function. It just will not show cards based on location. Also when you disable or semi disable location sometimes Search start's keeping you're phone awake trying to find some location information. If this happens just force stop Google search or reboot the phone.
Click to expand...
Click to collapse
oh ok, so like the weather card won't work? what about commute time to home? I'm guessing that won't work either right?
but anyway thanks for the help!

NuckFuggets said:
oh ok, so like the weather card won't work? what about commute time to home? I'm guessing that won't work either right?
but anyway thanks for the help!
Click to expand...
Click to collapse
Weather will still work you just need to input you're location into the card settings manually. I used that for a while but it consistently wakes the phone to update it which annoyed me so I use Dashclock as it only updates when I turn the screen on.
Without Locations it will still grab information from the net about your searches, sports teams, stocks etc. It will no longer show you commutes, local picture spots etc.
I've kept Google Now on mainly so I can still set and receive reminders but don't want to tolerate any unnecessary wakes when the screen is off and have accomplished that now.

bblzd said:
Weather will still work you just need to input you're location into the card settings manually. I used that for a while but it consistently wakes the phone to update it which annoyed me so I use Dashclock as it only updates when I turn the screen on.
Without Locations it will still grab information from the net about your searches, sports teams, stocks etc. It will no longer show you commutes, local picture spots etc.
I've kept Google Now on mainly so I can still set and receive reminders but don't want to tolerate any unnecessary wakes when the screen is off and have accomplished that now.
Click to expand...
Click to collapse
oh man, Idk il have to see how that works, cuz I use Google now a lot. but I'll try it, thanks again

George_Mn said:
Go to Settings->Location->Google Location Reporting and set both to Off => no more battery drain
Click to expand...
Click to collapse
Not necessary to go that extreme.
I had the same issue as you guys after upgrading. Goto Settings->App->All
Select Google play services. Stop it. And clean data (All, including cache)
Reboot. And voila, it will consume much much less battery (Dont ask me why... Probably some conflict arising on the data file after upgrade)
On a side note, without completely disabling data location, it is worth switching to the battery friendly mode (Location will be evaluated using the network and not the GPS)
Sent from my Nexus 7 using xda app-developers app

Alcibiade said:
Not necessary to go that extreme.
I had the same issue as you guys after upgrading. Goto Settings->App->All
Select Google play services. Stop it. And clean data (All, including cache)
Reboot. And voila, it will consume much much less battery (Dont ask me why... Probably some conflict arising on the data file after upgrade)
On a side note, without completely disabling data location, it is worth switching to the battery friendly mode (Location will be evaluated using the network and not the GPS)
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
just tried that, I'll see what happens. what's this though, when I want to disable it I get this pop-up. I get it with all system apps, but the last line I've never seen before

NuckFuggets said:
just tried that, I'll see what happens. what's this though, when I want to disable it I get this pop-up. I get it with all system apps, but the last line I've never seen before
Click to expand...
Click to collapse
Dont disable it. Stop it and wipe data
Sent from my Nexus 7 using xda app-developers app

Alcibiade said:
Dont disable it. Stop it and wipe data
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
I wasn't going to disable it, I was just wondering what would happen if I did
also here are my stats from today, what is android system and android os? why are they draining so much battery? also why is Swype using so much battery?

Researched this a lot, found some solutions, bad and good fixes and after trying some different twists on it after two days this is what I found to be the best, and I decided since this is just as bad as 4.0/4.1 and the mediaserver battery drain I might as well try and help at least 1 person by mass posting this reply I wrote else where to other threads, so here you go:
"Hey- I don't know if you, or anyone else has found a working solution, but here is the way I found best:
Note- I am on galaxy s4 [sgh-i337] running a 4.4 KitKat rom. I have found the following work around to work best for me:
1 Google now & Hotword detection=OFF,
2 GPS = OFF and turned on only when needed, eg maps/checkin on facebook/whatever needs location.
3 Settings-> Manage Apps -> Google Play Services -> Manage Space -> Clear All Data.
**Optional:After this [root only] I go into KT tweaker and make sure my phone cpu is set to a max of 810 Mhz when screen off.**
This fix usually works until I reset the phone. I ALWAYS follow those 3 steps when rebooting. AND always check that after I've used GPS that Google Play Services isn't keeping my phone awake. [Eg, after 30 minutes I check if the phone ever went to sleep again when the screen was off.] IF it does act up, I repeat steps 1, 2 &3. I still get notifications and all, and this is the least feature disabling way I've found that works with the cost of a little micro-management of your phone.
With this fix I can idle for an estimated 5-6days. As I take off my phone from charge at 8am and at noon with minimal usage [maybe 4 or 5 texts] I am at 97%. With WiFi on & connected.
OTHER: I personally keep NFC&Android beam&Bluetooth OFF, and turn ON when I need it on. Other- WiFi is always ON, and "Scanning Always Available" EDIT: Now is OFF, "WiFi Optimization" is checked ON for me. And for location mode when I do have it on, I keep it at EDIT: Device only. Using only gps to find my location.
All in all, I hope this gets fixed."
I can post screen shots and all if somebody wants them or if there is need for one
-icy

icy4phone said:
Researched this a lot, found some solutions, bad and good fixes and after trying some different twists on it after two days this is what I found to be the best, and I decided since this is just as bad as 4.0/4.1 and the mediaserver battery drain I might as well try and help at least 1 person by mass posting this reply I wrote else where to other threads, so here you go:
"Hey- I don't know if you, or anyone else has found a working solution, but here is the way I found best:
Note- I am on galaxy s4 [sgh-i337] running a 4.4 KitKat rom. I have found the following work around to work best for me:
1 Google now & Hotword detection=OFF,
2 GPS = OFF and turned on only when needed, eg maps/checkin on facebook/whatever needs location.
3 Settings-> Manage Apps -> Google Play Services -> Manage Space -> Clear All Data.
**Optional:After this [root only] I go into KT tweaker and make sure my phone cpu is set to a max of 810 Mhz when screen off.**
This fix usually works until I reset the phone. I ALWAYS follow those 3 steps when rebooting. AND always check that after I've used GPS that Google Play Services isn't keeping my phone awake. [Eg, after 30 minutes I check if the phone ever went to sleep again when the screen was off.] IF it does act up, I repeat steps 1, 2 &3. I still get notifications and all, and this is the least feature disabling way I've found that works with the cost of a little micro-management of your phone.
With this fix I can idle for an estimated 5-6days. As I take off my phone from charge at 8am and at noon with minimal usage [maybe 4 or 5 texts] I am at 97%. With WiFi on & connected.
OTHER: I personally keep NFC&Android beam&Bluetooth OFF, and turn ON when I need it on. Other- WiFi is always ON, and "Scanning Always Available" & "WiFi Optimization" is checked ON for me. And for location mode when I do have it on, I keep it at EDIT: Device only. Using only gps to find my location.
All in all, I hope this gets fixed."
I can post screen shots and all if somebody wants them or if there is need for one
-icy
Click to expand...
Click to collapse
thanks! but wow i wish my battery would be that good. i actually did so,ething else, i turned off the location reporting like someone earlier said and google play services dont even show up anymore. using device only disables location reporting as well so they both should have similar improvements.

[Q] Please Help ! Android System Battery Drain on Nexus 5 after KitKat 4.4.2 update

Hi,
The battery life of my Nexus 5 has taken a dramatic hit since the 4.4.2 update. I think the culprit is Android System but the GSAM battery graph seems to suggest that the culprit is Android OS kernel. My Nexus 5 is on 4.4.2, unrooted, stock ROM and the build no. is KOT49H.
In short, my phone does not seem to have a wakelock issue but I can't verify because 4.4 does not allow wakelock access without root. It sleeps fine at night and in daytime when it is not in use. I only lose around 5% or less overnight with 2x battery turning off the data connection and only turning on data connection once every night. The problem is the Android System which drains at least 17% (sometimes 25%) of battery everyday and routinely sits on top my of battery usage chart with or without me actually using the phone. My usage per charge is typically around 6-7 hours with around 1 hour 45 minutes screen on time. I had extraordinary battery life before the update to 4.4.2 (lasting more than 1 day with over 3 or 4 hours screen on time). Now my battery life is completely shot. The battery graphs attached already represent one of the better days. Some days the Android system will drain at 25% or more. You will note my phone relatively slept fine without draining at night in the first 7 or 8 hours and then the battery drain started to take a nose dive after I woke up. I feel that whenever I start using the phone (with the screen being turned on), the battery drain will occur. My observations are as follows:
1. I use LTE but the reception at my home and work for LTE is not good so the radio jumps between LTE and H+ from time to time however I do not think the radio jumping contributes that much to the drain. The drain stays the same even when I am at a place with good LTE reception. I use wifi at home but i cannot connect to wifi at work (which sadly is another issue). The wifi is always off unless i use it at home. I do NOT have wifi scanning in the settings. I have wifi battery optimization on. I never use bluetooth.
2. My google now is off. My location setting is completely off with no location reporting etc..
3. My Google + auto back up is off. I do not use Facebook, Facebook messenger, Instagram, snapchat etc. I mostly use Feedly, Whatsapp, Gmails and look at stock quotes every day. I seldom take pictures, videos or listen to music.
4. I only have one widget dashclock widget. I have removed feedly and stock quote widgets from the home screen but they don't seem to affect my battery usage that much.
5. I use Automateit but only have a few rules such as setting vibrate on weekdays etc.. I do not have any profiles which are related to GPS or location which i understand would drain battery. I also use Dynamic Notification, Light Flow, Lux, Nova Launcher, Notification Toggle and the memory in general is always below 65% in the background. I also use 2x battery to save battery which is set at switching off data after I turn off the screen and it will only turn data in the background every 10 minutes.
6. I have tried safe mode and 9 out of 10 times the Android system drain remains the same. The only way to lower the Android system drain (albeit temporary) is when I turn off the phone and plug it in for a charge, then turn it on when it is full and still plugged in. After I unplug it, the Android System drain will lower to say 7 or 8 % but it will slowly creep back up to 20% within an hour or so.
7. The CPU usage overlay routinely has 9 + readings on the top when the screen is turned on (but with no app running). I think it means very high CPU usage.
8. I do not think Feedly is causing any problems. I deleted the app and the drain remains. I also do not think GSAM is that useful as pointed out by another member here. It points to one app. You delete that app and then the drain remains it will point to something else.
9. I have been using Greenify (non-root) but it does not seem to help with my battery drain as the drain might be caused by system apps or processes within the OS.
I don't know what else to do and this problem has been troubling me for more than 1 month now. Please help !
Update on 24/2/2014:
I have given up and factory reset my phone. After I reset my phone, the apps were installed via Google Play automatically. I also switched to ART. It was fine initially for at least one day. The apps were there but I did not use or enable most of them as I wanted to transfer all my data and tweaked the settings in one goal. I mostly just used Feedly, Whatsapp and Maps for navigation. Even with Maps and high accuracy GPS on, the Android System would go below 10% even though it would temporarily increase to say above 20% during navigation. This morning, I thought the battery seemed ok so I enabled Lux, Dynamic Notifications, Lightflow, Automateit, Nova Launcher and restore the settings to most of the apps.
The Android System drain came back within 2 hours and hit 25% of the total battery drain. My phone's battery dropped from 100% to 40 % in less than 5 hours and the screen on time was only around 1 hour! I never did any battery intensive actions. The most was turning on the phone to check my battery and whatsapped less than 10 messages back and forth ! Since the drain re-appeared, I have turned off completely the location setting, Google Now, sync for Google Plus, auto-backup for Google Plus. I have removed all widgets and disabled Dynamic Notifications, Nova Launcher, Light Flow, Lux. The drain still remains the same at 23% or more.
This is driving me absolutely crazy and I am sick and tired of spending so much time and energy on sorting out the cause for drain (and to no avail!) I spent a lot more time on trying to fix the phone than really utilizing the phone for my benefit !! I just sent an email to the Google tech support and hope they will help instead of sending me generic self-help sheet. Thanks all for listening and trying to help. I am just really disappointed with Google this time.

Use bbs to get wakelock info.
Feedly has got to go too
Sent from my Nexus 5 using Tapatalk

rootSU said:
Use bbs to get wakelock info.
Feedly has got to go too
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
Thanks for your reply. My N5 is not rooted so I do not have access to wakelock stats anymore.
I have removed Feedly but the android system drain persists.

Not a lot that can be done without knowing the cause. Consider factory reset?
Sent from my Nexus 5 using Tapatalk

rootSU said:
Not a lot that can be done without knowing the cause. Consider factory reset?
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
I am hoping I don have to resort to factory reset and can wait for the 4.4.3 update but I guess my patience is running out.
Thanks for your help.

My missus' LG-P880 has exactly the same problem. Just started happening one day. It seems to be wakelock locator alarms according to bbs but there doesn't appear to be any reason for it. Its been driving me mad too. Luckily tho she's rooted so using app opps i disabled Google services location and it's kinda helped
Sent from my Nexus 5 using Tapatalk

Did you try another kernel ? When I changed to franco kernel, my battery life is better.

having weak LTE signal kills the battery but it should not be this bad.
Maybe you should try a factory reset and see if the problem still persist, if not then you have an rogue app somewhere.

You can use the process of elimination.
Start with disabling Dynamic notifications and Light flow as those have high potential for battery drain.
Sent from my Nexus 5 using Tapatalk

Elias_grodin said:
I am hoping I don have to resort to factory reset and can wait for the 4.4.3 update but I guess my patience is running out.
Thanks for your help.
Click to expand...
Click to collapse
Restart your phone in safe mode, and see the battery drainage...maybe it can help you.

It seems good for me
Sent from my Nexus 5 using Tapatalk

I had this same problem the other night. Get app ops starter from the play store. In there turn location off in Google play services and android system. Note, this may impact other apps. I don't use any that I need location for so it works for me.
Sent from my Nexus 5

I had a similar issue as well. For me I turned off a couple things and it really helped:
1. Turned off Cerberus, I believe checking location too often or incorrectly or something.
2. Turned off Account sync for Play Newstand. Noticed when a sync would occur, it would hang on Newstand for much too long which I think was waking device and keeping device awake during it's long syncs. Everything else would only take a min or two total.
3. Set G+ photo sync to only sync when on wifi and charging.
4. Removed Yahoo Weather app. Noticed yahoo weather app staying alive a lot too.
5. Removed Whatsapp. Probably unnecessary really, but any of those messaging/weather/location apps that I don't use often (if ever) I removed to make sure they weren't checking location in the background.
So far, I'm at 78% battery today when I would have been at around 30-40% usually, so that combo has made a huge difference.
It's going to be different for everyone I think, but basically just make sure you don't have any excess apps checking location in the background. And at least for me there seems to be something wrong with Play Newsstand sync hanging for long periods of time.

Yea... Even i had the same issues... Latest version killes ma deep sleep mode nd also some of a rules disappeared....

I was having similar issues and was able to narrow it down to syncing Google Services...
I found that often times Google Drive would get hung up when syncing in the background and chew up my battery.
What Google Services do you have set to auto-sync? I would narrow it down to the ones you only really need to have synced in the background and have the others sync up for you when you open them.
Also, in regards to your LTE/H+ signal, have you tried to flash another radio to see if there is any improvement? A poor signal can have a pretty significant impact on battery life as well.
Lastly, as mentioned by another user, Better Battery Stats, though requiring root, will make it a lot easier to track down the culprit of the issue if it indeed a rogue app somewhere.

Try different keyboard. I've a suspicion that latest Google Keyboard is the culprit.
I was having some unexplainable with BBS (no locks, etc.) battery drain. Which can only be resolved (though temporarily) with reboot.
So, I installed alternative keyboard (Swype in my case) and using it. So far, second day I don't have battery drain.

Update
Please refer to the OP for update. Thanks all.

battery after reset
After a second factory reset, I did not install a lot of the apps which I suspect have something to do with my drain - including Swype, Dynamic Notifications, Nova Launcher, LightFlow, Task Manager, 2x battery, Lux, Notification Toggle, Dash Clock, Automateit. I have also set my location to device only with no location history and history. I have also disabled Google Now. I have not restored my photos, music and videos to the phone yet. I have disabled sync for Google Plus, Google Drive etc.. I have also disabled auto back up for Google Plus. I am on ART.
The battery life (with around 25 % left) was around 6 hours 30 minutes or a bit more but with close to 2 hours 40 minutes screen on time. The screen was the biggest draw. Android system comes in second with around 13%. This is obviously better than before where I managed to squeeze maybe a hour or 30 minutes more but with 2x battery turned on in the background. I mostly used the phone for battery checking, whatsapp, Feedly, web surfing. I played games for around 20 minutes. I was not on wifi most of the time. Is this battery performance normal?
Thanks in advance.

Replacement offer by Google
Elias_grodin said:
After a second factory reset, I did not install a lot of the apps which I suspect have something to do with my drain - including Swype, Dynamic Notifications, Nova Launcher, LightFlow, Task Manager, 2x battery, Lux, Notification Toggle, Dash Clock, Automateit. I have also set my location to device only with no location history and history. I have also disabled Google Now. I have not restored my photos, music and videos to the phone yet. I have disabled sync for Google Plus, Google Drive etc.. I have also disabled auto back up for Google Plus. I am on ART.
The battery life (with around 25 % left) was around 6 hours 30 minutes or a bit more but with close to 2 hours 40 minutes screen on time. The screen was the biggest draw. Android system comes in second with around 13%. This is obviously better than before where I managed to squeeze maybe a hour or 30 minutes more but with 2x battery turned on in the background. I mostly used the phone for battery checking, whatsapp, Feedly, web surfing. I played games for around 20 minutes. I was not on wifi most of the time. Is this battery performance normal?
Thanks in advance.
Click to expand...
Click to collapse
I have reset the phone three times. After the third attempt, the battery drain for Android System would go back up to 20% plus. By the test of elimination, I thought I narrowed down the possible culprit to Light Flow and Dynamic Notifications. I uninstalled both of them but the battery drain remained 20% plus.
Google was willing to replace my device. I asked them whether the battery drain is likely a hardware or a software issue or a combination of both. They said (to my surprise) it is hardware issue. It seems they have come across quite a number of similar cases. I always thought it was a bug within 4.4.2 or in the google apps such as Google Play Services etc. and could be fixed by a patch or something. The phone also means a lot to me as it was a gift from my gf. I just don't want to go through the hassle of replacing the device if it is a software problem but I guess I am running out of choices unless I decide to wait for the update. What do you guys think?

It's definitely not a hardware issue. If you Google it there's threads all over the place with all different makes and models of phones having the same problem and no one can figure out why, apart from it definitely seems something to do with Google services (GmsCore.apk)
Your best option is to root your phone and use app ops and turn location access off for every app that doesn't need it. (pretty much everything apart from maps and weather apps)
Sent from my Nexus 5 using Tapatalk

Something is killing my battery - please advice

Hi guys,
since a few weeks it's the same sh*t with every Omni-Nightly and franco.Kernel.
Everything is working fine for 1-2 day.
But then the cpu usage increases (i don't see any reason) and won't go back to idle again.
I tried several cpu monitor apps but none is showing me which app is causing this issue.
Please help.
And please don't blame facebook.
My cpu behaves the same way even no facebook app is installed.
If you need further information please tell me.
Thanks a lot for your help!

go to the main phone settings, location, now press google location reporting.. turn off location reporting and location history. your location will still work without these. no go back to the location option, and turn the mode to battery saving.

simms22 said:
go to the main phone settings, location, now press google location reporting.. turn off location reporting and location history. your location will still work without these. no go back to the location option, and turn the mode to battery saving.
Click to expand...
Click to collapse
i've got this issue since 1 or 2 weeks.
i can say for sure that it's not any location services fault.

leAndroid91 said:
i've got this issue since 1 or 2 weeks.
i can say for sure that it's not any location services fault.
Click to expand...
Click to collapse
i see google play services showed up on your battery stats. normally, you wont even see it there, but you are at 71% and so far its taking 6%. its not the location services per se, they work fine with those options disabled. but it is a well known battery drainer.

simms22 said:
i see google play services showed up on your battery stats. normally, you wont even see it there, but you are at 71% and so far its taking 6%. its not the location services per se, they work fine with those options disabled. but it is a well known battery drainer.
Click to expand...
Click to collapse
you're right that those services are draining the battery, but in an acceptable way.
when i don't have the isse with the increased cpu usage i've 4-5 hours sot @ 12 hours overall uptime.
so i guess in general everything is working fine on my device.
but i don't know what and why is causing the high cpu usage :crying:

I'm no good at understanding BBS stats, but what is daemonsu?
There seems to be something keeping your phone awake and attributing its drain to "Android OS" which could be many things, including Widgets.
Sent from my Nexus 5 using Tapatalk

I could help, but prefer gsam screenshots. Unfamiliar with BBS.
Also, for starters....and please trust me here...just turn location services completely off for one charge cycle and see what happens. Also, Google settings app....go into android device manager and uncheck both options.
See how your full charge goes like that. If its still bad...its an app doing the damage, or a very weak signal.
Try it, and it will narrow down the problem. ?
Sent from my N5, N7, Moto X, G Tab 3 or S2.....

Option 1. go back to 100% stock Rom see if it behaves the same
option 2. hard reset your phone and check battery usage with no apps installed
option 3. put your phone on airplane mode and see if battery still drains the same way using wifi. Usually if I have bad reception my battery will drain like crazy. My personal experience using my Nexus 5 I can't tell how much my battery is going to last day by day sometimes I get over 12hrs other days I'm lucky if I get 8hrs.

[Q] 40% Battery Burn Overnight (with WLD Screenshots)

Hey guys,
I had the issue with the 40% battery burn overnight again. According to WLD, the CPU was awake for 96% of the ~11 hours since it was charged (which explains it). I want to make sure I'm reading these right, so I've posted screens of wakeup triggers and CPU wakelocks.
I've got Google Now turned on, the "OK Google" keyword detection turned off, location reporting on, location history on, and location services set to high accuracy (I use navigation and what not and would prefer to not have to toggle it constantly). Please see the attached screenshots.
Some googling of my own told me it's location reporting keeping it awake, which I'm afraid is the case, as I didn't have this issue for a while when it was off (it's also been on for several days and I haven't had this issue).
So, I have two questions in total. Is it Google Now's location usage that's draining my battery and keeping my phone awake? Also, since this isn't an every night issue, do you have any suggestions or recommendations to solve it without losing Gnow functionality?
I am running Carbon (July 1st nightly) and the Franco Kernel r55. Thank you very much in advance, this issue has alluded me and annoyed me for months.
Update: upon further research, I'm seeing that blocking wakelocks from Google Search / Google Now related location services will eliminate the problem without affecting Gnow functionality - is there any truth to this? I've also seen people claim to have disabled location reporting without loosing their weather, nearby events, etc. I worry that disabling the wakelock will impede functionality because I don't have the screen on often while traveling. I just can't seem to get a straight answer!
Update 2: after a phone call to Google (yes, they actually gave me a good answer), I was told that Location Reporting *only* tracks where you've been to give you travel time and similar things. Turning it off doesn't disable weather, nearby events, parking location, and so on, so it's looking like just disabling it is a good place to start.

turbofandude said:
Hey guys,
I had the issue with the 40% battery burn overnight again. According to WLD, the CPU was awake for 96% of the ~11 hours since it was charged (which explains it). I want to make sure I'm reading these right, so I've posted screens of wakeup triggers and CPU wakelocks.
I've got Google Now turned on, the "OK Google" keyword detection turned off, location reporting on, location history on, and location services set to high accuracy (I use navigation and what not and would prefer to not have to toggle it constantly). Please see the attached screenshots.
Some googling of my own told me it's location reporting keeping it awake, which I'm afraid is the case, as I didn't have this issue for a while when it was off (it's also been on for several days and I haven't had this issue).
So, I have two questions in total. Is it Google Now's location usage that's draining my battery and keeping my phone awake? Also, since this isn't an every night issue, do you have any suggestions or recommendations to solve it without losing Gnow functionality?
I am running Carbon (July 1st nightly) and the Franco Kernel r55. Thank you very much in advance, this issue has alluded me and annoyed me for months.
Update: upon further research, I'm seeing that blocking wakelocks from Google Search / Google Now related location services will eliminate the problem without affecting Gnow functionality - is there any truth to this? I've also seen people claim to have disabled location reporting without loosing their weather, nearby events, etc. I worry that disabling the wakelock will impede functionality because I don't have the screen on often while traveling. I just can't seem to get a straight answer!
Update 2: after a phone call to Google (yes, they actually gave me a good answer), I was told that Location Reporting *only* tracks where you've been to give you travel time and similar things. Turning it off doesn't disable weather, nearby events, parking location, and so on, so it's looking like just disabling it is a good place to start.
Click to expand...
Click to collapse
The data we need to see isn't shown in your screenshots. This is why I prefer BBS. You can just post a log and nothing will be missing.

Aerowinder said:
The data we need to see isn't shown in your screenshots. This is why I prefer BBS. You can just post a log and nothing will be missing.
Click to expand...
Click to collapse
Ugh, I knew I should have left it. I've got it installed now and will post a screenshot if it happens again. I've got Location Reporting turned off. I want to see if it will still give me the features I want, and if the battery drain issue stops, yippee. I will leave BBS there, however, in case it happens again.

turbofandude said:
Ugh, I knew I should have left it. I've got it installed now and will post a screenshot if it happens again. I've got Location Reporting turned off. I want to see if it will still give me the features I want, and if the battery drain issue stops, yippee. I will leave BBS there, however, in case it happens again.
Click to expand...
Click to collapse
All of the wakelocks that start with Nlp are due to location. Switching the location mode to Device only will stop them. Anything that relies on GPS still works fine. This should be the default setting.

I did a factory restore of the phone, latest Gapps, Carbon rom (07/07 nightly + 07/06 firmware), latest ElementalX Kernel now (so far, better temp/performance + equal or better battery). I know it's only an hour's worth of use, but a problem is pretty apparent.
Location reporting/history is off, Gnow is enabled, keyword detection is off. WiFi is on, and location services are in high accuracy mode. Why is a wakelock created by never released and how do I avoid that?
Is there any reliable setting I can use to avoid a random software issue eating up my battery? This inconsistency is driving me insane.