Database Users

Battery Drain so fast with wakelock and Phone Idle...

I'm using Razr M but the battery drain so fast even though I use it just casually.. Indicated that "wakelock" contribute up to 15 percent and Android System also a lot. The screenshot is above as you can see my phone was just 19 minute on screen. >"<.. No idea why.. I was really concern about bloatware comes with the device keep running background and drain the battery. Because the Phone Idle take most battery as well
The Three thing in Wakelock are
Orientation Notifier
ModemStatService
Modem Fastdormancy Mornitor Service.
Screenshot included.
Does anyone knows what are those belong to and how to stop it?
Thanks

simpledave said:
I'm using Razr M but the battery drain so fast even though I use it just casually.. Indicated that "wakelock" contribute up to 15 percent and Android System also a lot. The screenshot is above as you can see my phone was just 19 minute on screen. >"<.. No idea why.. I was really concern about bloatware comes with the device keep running background and drain the battery. Because the Phone Idle take most battery as well
The Three thing in Wakelock are
Orientation Notifier
ModemStatService
Modem Fastdormancy Mornitor Service.
Screenshot included.
Does anyone knows what are those belong to and how to stop it?
Thanks
Click to expand...
Click to collapse
Much more info is needed, to test if your phone has a problem remove all installed apps, charge to 100% and then check your batt stats. More likely than not something you installed is causing this.

simpledave said:
I'm using Razr M but the battery drain so fast even though I use it just casually.. Indicated that "wakelock" contribute up to 15 percent and Android System also a lot. The screenshot is above as you can see my phone was just 19 minute on screen. >"<.. No idea why.. I was really concern about bloatware comes with the device keep running background and drain the battery. Because the Phone Idle take most battery as well
The Three thing in Wakelock are
Orientation Notifier
ModemStatService
Modem Fastdormancy Mornitor Service.
Screenshot included.
Does anyone knows what are those belong to and how to stop it?
Thanks
Click to expand...
Click to collapse
Something is definitely wrong there. Wake lock should not even be showing up unless you are using some app to purposefully keep the phone awake or something. You must have a rogue app.
-Sent from my Razr i on AT&T.-

I agree
phositadc said:
Something is definitely wrong there. Wake lock should not even be showing up unless you are using some app to purposefully keep the phone awake or something. You must have a rogue app.
-Sent from my Razr i on AT&T.-
Click to expand...
Click to collapse
Yeah, I'm really suspicious about maybe some rogue apps run behind but no way to find out. maybe it's Viber or Whatsapp since it's always require internet connection to receive message. ... I would love to find a way to remove the bloat-software :crying: .. they ate half memory of the 8Gb Razr M, only 4.1 Gb Usable

simpledave said:
Yeah, I'm really suspicious about maybe some rogue apps run behind but no way to find out. maybe it's Viber or Whatsapp since it's always require internet connection to receive message. ... I would love to find a way to remove the bloat-software :crying: .. they ate half memory of the 8Gb Razr M, only 4.1 Gb Usable
Click to expand...
Click to collapse
does betterbatterystats work on this phone? I use this on my S3 to find out what's keeping phone from deepsleep. Then you can find out which apps are keeping it up.

It's not whatsapp - I use that as well and I get 1-2 full days on a charge.
You've got a lot of apps running in your notification tray (top left) - I'd pull them all out... or better yet, FDR and don't opt to restore your Google config then start over.
Unless you want to list every app you have installed those are my recommendations.

Non Verizon SIM?
simpledave said:
I'm using Razr M but the battery drain so fast even though I use it just casually.. Indicated that "wakelock" contribute up to 15 percent and Android System also a lot. The screenshot is above as you can see my phone was just 19 minute on screen. >"<.. No idea why.. I was really concern about bloatware comes with the device keep running background and drain the battery. Because the Phone Idle take most battery as well
The Three thing in Wakelock are
Orientation Notifier
ModemStatService
Modem Fastdormancy Mornitor Service.
Screenshot included.
Does anyone knows what are those belong to and how to stop it?
Thanks
Click to expand...
Click to collapse
I have the very same issues, but only on GSM as soon as I am on Wifi battery life is excellent. I am using a German SIM card (in Germany) which works well (except of mobile hot spot). So I am suspecting some internal service looking for a Verizon service, which it obviously cannot find. Any thoughts?

MasterServant said:
I have the very same issues, but only on GSM as soon as I am on Wifi battery life is excellent. I am using a German SIM card (in Germany) which works well (except of mobile hot spot). So I am suspecting some internal service looking for a Verizon service, which it obviously cannot find. Any thoughts?
Click to expand...
Click to collapse
Go into your dialer and type *#*#4636#*#* then hit the "phone information button" then scroll down to something that says "network types"or something along those lines and choose the "wdcma preferred" option. That might stop it from looking for vzw networks.
-Sent from my Razr i on AT&T.-

phositadc said:
Go into your dialer and type *#*#4636#*#* then hit the "phone information button" then scroll down to something that says "network types"or something along those lines and choose the "wdcma preferred" option. That might stop it from looking for vzw networks.
-Sent from my Razr i on AT&T.-
Click to expand...
Click to collapse
Thanks for the hint. But that does not solve the problem. I have installed juicedefender, which in its default setting seems to solve the problem. The battery life with juicedefender seems eternal . However, the phone is less "reactive" to email pushes etc.
I am getting the pro version of juicedefender, perhaps I can get down to the root.

simpledave said:
I'm using Razr M but the battery drain so fast even though I use it just casually.. Indicated that "wakelock" contribute up to 15 percent and Android System also a lot. The screenshot is above as you can see my phone was just 19 minute on screen. >"<.. No idea why.. I was really concern about bloatware comes with the device keep running background and drain the battery. Because the Phone Idle take most battery as well
The Three thing in Wakelock are
Orientation Notifier
ModemStatService
Modem Fastdormancy Mornitor Service.
Screenshot included.
Does anyone knows what are those belong to and how to stop it?
Thanks
Click to expand...
Click to collapse
My gf is having the same problem with her M. GSam said GMaps was wakelocked-looped...woke the thing 1,271 times in the 8 hours she had it unplugged. Auto-location reporting was turned on (wtf), switched it off but it kept dropping. ~10 hours off the cord with maybe 30 minutes use and it was at 6%. We'll see what happens tomorrow, but any ideas are much appreciated. I know more info is needed but it's kind of hard to pry into unrooted phones...we'll see.

I had the same problem two days ago. Two words for you... FAST DORMANCY (google it). Thats the culprit and is very telling with the first picture showing the phone is awake constantly when wifi is off and mobile data is on... you can test it yourself, compare battery drop rate with mobile data on and with wifi on.
Solution
1. Root phone, unfortunately you have to.
2. Download titanium backup
3. Freeze modemstatservice
4. Freeze fastdormancy.
Let me know if this helps you.

Thanks.. i just did freezing those 2 service.. lets see what will happen then...
Sent from my XT907 using Tapatalk 2

sombody said:
I had the same problem two days ago. Two words for you... FAST DORMANCY (google it). Thats the culprit and is very telling with the first picture showing the phone is awake constantly when wifi is off and mobile data is on... you can test it yourself, compare battery drop rate with mobile data on and with wifi on.
Solution
1. Root phone, unfortunately you have to.
2. Download titanium backup
3. Freeze modemstatservice
4. Freeze fastdormancy.
Let me know if this helps you.
Click to expand...
Click to collapse
Can you explain why titanium backup is needed?
I stopped the modemstatservice and fastdormancy services. Hope that works. I actually did a factory reset and thought for a short moment that it has improved, but that's not the case. I can stay a whole day with quiet a lot of browsing on Wifi and us up 20%. On 3G I drain 25% in 4h

So I bought titanium backup, freezed modemstatservice and fastdormancy.
No change in battery drain. I would like to know if all the other who have the same problem are running on a verizon SIM.
Until now nothing has worked. Under normal usage, I get a flat battery in about 16h. Normal means 2calls (<3min) and perhaps 5min of browsing.

I am having the same issue - coming from a Thunderbolt I am still happy with the battery as it is but if the wake lock could be resolved the battery would be awesome...
Not sure what is causing the gtalk spike as I removed that app...
ETA: running Jelly Bean leak & rooted... I also reflashed the leak wiping data, etc... with no change
Sent from my XT907 using xda app-developers app

MasterServant said:
Can you explain why titanium backup is needed?
I stopped the modemstatservice and fastdormancy services. Hope that works. I actually did a factory reset and thought for a short moment that it has improved, but that's not the case. I can stay a whole day with quiet a lot of browsing on Wifi and us up 20%. On 3G I drain 25% in 4h
Click to expand...
Click to collapse
Sorry to hear that this fix didnt work for you. Could you provide more info regarding your network and if possible some screenshot of betterbatterystats or something similar. Maybe *#*#4360#*#* > battery information might give me more information with regards to your problem.
Also, if you want to do really help eliminate more variables, try using ur phone on 3G without installing any apps.
I'll try to help you the best i could. :cyclops:
---------- Post added at 03:20 PM ---------- Previous post was at 03:18 PM ----------
Notrega said:
I am having the same issue - coming from a Thunderbolt I am still happy with the battery as it is but if the wake lock could be resolved the battery would be awesome...
Not sure what is causing the gtalk spike as I removed that app...
ETA: running Jelly Bean leak & rooted... I also reflashed the leak wiping data, etc... with no change
Sent from my XT907 using xda app-developers app
Click to expand...
Click to collapse
Maybe uninstalling gtalk and leaving an apk is causing the spike since it is trying to sync. Why not leave it on, also try reducing email refresh time to 1hr as oppose to the default (15 mins). Your battery life seems reasonable.

Wake Lock Questions:
Anyone know what the bam.dmux.wakekock is for? It says it's for a power management system but I don't know what that's supposed to do.
Also the Ssmdcnt10 wake lock?
Those are the two that are running on my phone and both are running like 36 minutes since I unplugged my phone this morning. Is this bad or is it something that I could allow to continue happening? Thx!
Sent from my magnificent Droid RAZR M using XDA Premium!
---------- Post added at 05:34 PM ---------- Previous post was at 05:30 PM ----------
MasterServant said:
So I bought titanium backup, freezed modemstatservice and fastdormancy.
No change in battery drain. I would like to know if all the other who have the same problem are running on a verizon SIM.
Until now nothing has worked. Under normal usage, I get a flat battery in about 16h. Normal means 2calls (<3min) and perhaps 5min of browsing.
Click to expand...
Click to collapse
I froze mine and so far it has improved and I'm running the jellybean leak with root; HOWEVER my battery still drains fast and when I was on ICS my battery life was amazing so I'm actually probably going to revert back to that tomorrow. I fed the jellybean leak since it came out early last week and tried everything that I know to increase battery life but nothing works.
Sent from my magnificent Droid RAZR M using XDA Premium!

Sent from my magnificent Droid RAZR M using XDA Premium!

I reverted back to ICS yesterday and let me tell you there is no lag or battery drain issue at all. It's so much better.
Sent from my XT907 using xda app-developers app

alwaysbelieve1 said:
I reverted back to ICS yesterday and let me tell you there is no lag or battery drain issue at all. It's so much better.
Sent from my XT907 using xda app-developers app
Click to expand...
Click to collapse
Thinking of days in this...
Sent from my XT907 using xda app-developers app

"sns_periodic_wakelock" killing battery

Hey,
I'm running stock nexus 4. I have been having terrible 8 hour battery life with "Android OS" taking up all the battery in battery status. BetterBatteryStats tells me that "sns_perioidic_wakelock" and "sns_async_ev_wakelock" is using up most of the battery. See attached. Any idea what apps are causing this?
http://i.imgur.com/t1gAr.png

thegreyspot said:
Hey,
I'm running stock nexus 4. I have been having terrible 8 hour battery life with "Android OS" taking up all the battery in battery status. BetterBatteryStats tells me that "sns_perioidic_wakelock" and "sns_async_ev_wakelock" is using up most of the battery. See attached. Any idea what apps are causing this?
Click to expand...
Click to collapse
I'm pretty sure I've seen those wakelocks when making a lot of phone calls. Seems likely related to cell radio use some how, but that's just a guess.

mattb3 said:
I'm pretty sure I've seen those wakelocks when making a lot of phone calls. Seems likely related to cell radio use some how, but that's just a guess.
Click to expand...
Click to collapse
Actually the crazy thing is that i have airplane mode with wifi on most of the day cause I have really bad service. And I only have 100 minutes of talk, so I never talk on the phone.

thegreyspot said:
Actually the crazy thing is that i have airplane mode with wifi on most of the day cause I have really bad service. And I only have 100 minutes of talk, so I never talk on the phone.
Click to expand...
Click to collapse
Just checked mine and those wakelocks are really low today despite several phone calls, I've been on wifi all day though. The right way to figure those wakelocks out is to download the kernel source from one of the devs github and do some searches through the source to see where those wakelocks are logged. You might also search the battery impression thread in general, some smart folks have dissected many kernel wakelocks in there. Seems weird that you would have them in airplane mode.

thegreyspot said:
Actually the crazy thing is that i have airplane mode with wifi on most of the day cause I have really bad service. And I only have 100 minutes of talk, so I never talk on the phone.
Click to expand...
Click to collapse
I have the exact same issue. Wakelocks/Android OS killing my battery (Android OS usually 45% or higher when it should be my screen that is the biggest battery sucker).
I barely use my phone to make phone calls as well. I'd say 1 call every 2 or 3 days.

Same exact wakelocks here. I made 0 phone calls. There is defiantly something up.

I had these two wakelocks too and it turned out to be my live wallpaper that was causing it
http://forum.xda-developers.com/showpost.php?p=35277041&postcount=20

Same wakelocks on my N4....
Solution in my case, delete widget locker....... My Nexy sleeps again:angel:

exact same situation: N4, sns wakelocks killing battery, phone not deep sleeping. culprit? Shake 'n Rotate! app. so add that one to the blacklist as well!

Are any of you running stock kernel and ROM?
Sent from my Nexus 7 using Tapatalk 2

Im Running stock kernal and Rom and i still get sns_periodic_wakelock and sns_async_ev_wakelock Does anyone have any idea what they are or what causes them or how to fix? They seem to be on the whole time my phone is on and they suck battery crazy not as bad as most but my android os is always 2nd battery use to my screen or more depending on how i use it and it sucks cause i know i would have pretty awesome battery life if these were fixed or gone. I appreciate any help!

Apparently you can also add: lightflow vibrate on pickup feature and adding a widget to the lock screen..

PowerManagerService and sns periodic wakelock are my main culprits but I'm not sure these numbers mean there's an issue or not...

I just checked BBS for todays use and I have on 9h use 4h on sns_periodic_wakelock. I have been using DashClock on my lockscreen. I will remove that and post back later to see if that helped.:cyclops:

Hmm can anyone say if this looks problematic?
Sent from my Nexus 4 using xda premium

Yes it does look problematic.
Basically sns_periodic_wakelock kept the device from sleeping for almost three hours.
I have the same issue and don't know what's causing it.
EDIT: Apparently live wallpapers do.

Just writing back to tell you guys how it went. I removed DashClock from my lockscreen and that wakelock seemed to be gone for a few days.
I then later updated the app, and just by updating it, I think it caused the wakelock. This time I'm uninstalling and checking if it comes back again.

Is there a known list of apps suspected of causing this?

dohkoxar said:
Just writing back to tell you guys how it went. I removed DashClock from my lockscreen and that wakelock seemed to be gone for a few days.
I then later updated the app, and just by updating it, I think it caused the wakelock. This time I'm uninstalling and checking if it comes back again.
Click to expand...
Click to collapse
I've had dashclock for the past two days.. Not seeing any wake locks. I have all the extensions from the app enabled.

Sns is related to facebook. If you use Titanium backup, go to apps and you can see a blue icon with a letter f on it that looks like facebook letter and labelled sns. Uninstall that and your lovely nexus 4 will enjoy its sleeeeep....

[Q][I9505] No deep sleep - msm_hsic_host

Hi everyone. I managed to get my hands on a beautiful blue I9505, had some issues while SIM unlocking it, but that's done and I am enjoying the phone very much.
Now, I do have a problem with it. The thing is, it simply will NOT go to deep sleep. Constantly hovering on 384 MHz with msm_hsic_host using a massive 90+ percent of awake time. It is driving me nuts. Our colleagues and friends over at Nexus 4 forums had an identical issue, and I read 57 pages of posts and used all their tips and tricks. Nothing helped.
Attached to this post you can see:
- the original Nexus 4 forum topic - [Q] msm_hsic_host - Nexus 4 forums
- The Google Code page where people complained about this - Google Code - Issue 41855 - "msm_hsic_wakelock" process on Nexus 4 causes severe battery drain
- my battery usage and BBS stats - attached to this post
- Qualcomm's fix for the issue - link 1 and link 2 at Code Aurora
I can't make heads or tails of any of this. The only thing that remains to do today (which I will do) is to flash a custom ROM and kernel for my I9505.
Thanks to anyone who will chime in to this discussion.

Bump - nobody else has this problem? Can you at least share your configurations so I can experiment a bit?

robogo1982 said:
Bump - nobody else has this problem? Can you at least share your configurations so I can experiment a bit?
Click to expand...
Click to collapse
99% chance that some app you installed is causing the wakelock. Install BetterBatteryStatts to determine wich app causes deep sleep/wakelock issues.

gee2012 said:
99% chance that some app you installed is causing the wakelock. Install BetterBatteryStatts to determine wich app causes deep sleep/wakelock issues.
Click to expand...
Click to collapse
I do have BBS as can be seen on the screenshots. I can't find the culprit since I believe it's the system itself.

I had this problem and it turned out to be avg pro app keeping it awake
Sent from my GT-I9505 using xda app-developers app

steveharris87 said:
I had this problem and it turned out to be avg pro app keeping it awake
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
I don't have such an app. Wakelock detector reports no odd stuff.

robogo1982 said:
I don't have such an app. Wakelock detector reports no odd stuff.
Click to expand...
Click to collapse
Wakelock couldnt find anything on mine either I just had a feeling it was that app so I removed it and it started going in to deepsleep I also had a problem with maps keeping my phone awake.
Sent from my GT-I9505 using xda app-developers app

robogo1982 said:
I don't have such an app. Wakelock detector reports no odd stuff.
Click to expand...
Click to collapse
clear dalvik cache and see again if it does enter Deep sleep or not, as everyone said its an application if not it must be a setting like sync, scan, or even that damn old wifi advanced settings that kept usual phones awake... reconfigure.

Insomnia
My phone won't sleep, won't time out and tapping the power button won't shut off the display. This happened just after deleting bootsamsung.qng, samsungloop.qng and shutdown.qng.
I'd replace the three deleted files, but they just grew and replaced themselves minus the carrier logo. The Baseband version now says: unknown. I stopped and installed google maps, that didn't help.
The good news is, those pink blocks are gone. The bad, I did a factory reset and noticed my cell network connectivity is gone. Maybe that's the sloppy work cutting down the SIM, or maybe something else? I've reinserted that sucker a dozen times and no joy. Do you know if the phone will stay awake without cell service? Putting it in airplane mode doesn't help.
Any suggestions? Thanks for your consideration.
Build number: JDQ39.I9505XXUAMDC

REVERSiN said:
clear dalvik cache and see again if it does enter Deep sleep or not, as everyone said its an application if not it must be a setting like sync, scan, or even that damn old wifi advanced settings that kept usual phones awake... reconfigure.
Click to expand...
Click to collapse
Cleared Dalvik, will keep an eye out (though I don't know how can it help)...

Wiping Dalvik did not help. I will try a factory reset later this afternoon and let the phone be for an hour or so without any apps installed.

robogo1982 said:
Wiping Dalvik did not help. I will try a factory reset later this afternoon and let the phone be for an hour or so without any apps installed.
Click to expand...
Click to collapse
Same problem here, my msm_hsic_host accounts for ~99% of the wakelocks according to BBS, even when the phone is in airplane mode and Wifi is off.
I'm running stock MDC firmware & kernel, rooted though.

fizzefazze said:
Same problem here, my msm_hsic_host accounts for ~99% of the wakelocks according to BBS, even when the phone is in airplane mode and Wifi is off.
I'm running stock MDC firmware & kernel, rooted though.
Click to expand...
Click to collapse
Read this about the wakelock, has to do with bad/lower 3g connections:
http://www.google.nl/url?sa=t&rct=j...3jjunrjohBvz3zaNvrYSO5g&bvm=bv.46751780,d.d2k

Thanks for the link.
This seems to be a logical explanation, but I've disabled 3G, and it still happens.
Plus it happens when in airplane mode, without any (cell) activity. I'm pretty sure that the kernel isn't configured properly.
Is there a known kernel / stock firmware version where this problem is fixed?

It appears that I have solved my problem.
I reset the device to factory settings and then restored apps, 5 by 5 in 30 min intervals. I still haven't restored all my apps, but so far I restored some 80%, here is the current state of things.

Very interesting.
Please keep us posted once you find out which app caused the problems, or if the factory reset fixed it.
Did you freeze or uninstall any apps?
Did you remove the T-Mobile bloatware?

fizzefazze said:
Very interesting.
Please keep us posted once you find out which app caused the problems, or if the factory reset fixed it.
Did you freeze or uninstall any apps?
Did you remove the T-Mobile bloatware?
Click to expand...
Click to collapse
I froze the same apps I had frozen before. If I find the app that caused the problems, I will report back. So far it's all good, 6h of use and I'm at 87% battery, wifi and 3G always on
P.S. I have Wanam's 1.0 installed
EDIT: 22h30 min, 2h4min screen on time, 48% battery.
I'd say that's an okay result.

robogo1982 said:
I froze the same apps I had frozen before. If I find the app that caused the problems, I will report back. So far it's all good, 6h of use and I'm at 87% battery, wifi and 3G always on
P.S. I have Wanam's 1.0 installed
EDIT: 22h30 min, 2h4min screen on time, 48% battery.
I'd say that's an okay result.
Click to expand...
Click to collapse
What app was the problem?
I have a problem with this wakelock, use about 10-25% of battery time

Napalm Candy said:
What app was the problem?
I have a problem with this wakelock, use about 10-25% of battery time
Click to expand...
Click to collapse
You know what, I can't really say. Since the factory reset I restored all my apps and never had the problem since. Really weird issue. 25% can be bad. I had 99.4%

robogo1982 said:
You know what, I can't really say. Since the factory reset I restored all my apps and never had the problem since. Really weird issue. 25% can be bad. I had 99.4%
Click to expand...
Click to collapse
So, if I give you my app list, can you identificate what you used before wipe?
Maybe can will know what apps are potentially to reproduce the problem

Battery issue. Is this normal?

Android system has been using a lot of battery since I turned off wifi. Is this normal?
I337 mf3 running GE 4.2.2 rom with safestrap
Sent from my SGH-I337 using xda app-developers app

deadenz said:
Android system has been using a lot of battery since I turned off wifi. Is this normal?
I337 mf3 running GE 4.2.2 rom with safestrap
Sent from my SGH-I337 using xda app-developers app
Click to expand...
Click to collapse
Google “android system battery drain" it comes up with a lot of things. Download BetterBatteryStats click on other than click on partial wakelocks. Its some of your wakelocks that's causing the android system to drain the battery. With BetterBatteryStats it tells you which of those wakelocks is causing it and you can disable them.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app

[email protected] said:
Google “android system battery drain" it comes up with a lot of things. Download BetterBatteryStats click on other than click on partial wakelocks. Its some of your wakelocks that's causing the android system to drain the battery. With BetterBatteryStats it tells you which of those wakelocks is causing it and you can disable them.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Click to expand...
Click to collapse
finding alot of "answers" but none of which I think are the problem. I've attached a couple screenshots to show what is causing the wakelocks, not real sure what they are tho. this battery drain only happens when I leave wifi off, if wifi is on everything is perfect.

How strong is your phone's signal? If it does a lot of searching it'll use a lot of battery. With Wi-Fi off your apps will still try to connect to the internet. Face book I'd your biggest wake lock. Do you really need that to be trying to sync?

jd1639 said:
How strong is your phone's signal? If it does a lot of searching it'll use a lot of battery. With Wi-Fi off your apps will still try to connect to the internet. Face book I'd your biggest wake lock. Do you really need that to be trying to sync?
Click to expand...
Click to collapse
my signal is almost always full bars with lte. I wouldn't think that one app would cause such a battery drain, even facebook. but no it's not that important, I can turn that off to see if it makes a difference. what about "AlarmManager" & "ActivityManager-Launch"?
edit: what I don't understand is this.. even with facebook on, whether it's syncing with wifi or my data connection it's wakelocking, so why such a huge difference when wifi is disabled and it's using my data connection instead?

I don't think facebook is the problem, I installed the other ge rom (clean&slim) and am having the same issue when wifi is disabled, and I haven't installed any apps except for es file explorer and nova launcher. I don't remember a problem with this on stock touchwiz. I have safestrap and goldeneye running on my girlfriends phone and the android system using battery when wifi is disabled isn't a problem.

deadenz said:
my signal is almost always full bars with lte. I wouldn't think that one app would cause such a battery drain, even facebook. but no it's not that important, I can turn that off to see if it makes a difference. what about "AlarmManager" & "ActivityManager-Launch"?
edit: what I don't understand is this.. even with facebook on, whether it's syncing with wifi or my data connection it's wakelocking, so why such a huge difference when wifi is disabled and it's using my data connection instead?
Click to expand...
Click to collapse
If you're in an LTE border area your connection may be connecting in and out with LTE bands frequently causing the battery drain, as wifi is usually more stable. Generally the cause of battery drain is due to google services wakelocking the phone. Do you have Greenify downloaded? It's pretty nifty for hibernating apps, causing them to be completely shutdown until opened; preventing wakelocks. If you get the donate version you can even hibernate system apps (google services, etc). I doubt it's ROM related, but you can try another ROM and compare with BetterBatteryStats.
http://forum.xda-developers.com/wiki/Wakelocks
^ That will explain the AlarmManager & ActivityManager-Launch.

Br4nd3n said:
If you're in an LTE border area your connection may be connecting in and out with LTE bands frequently causing the battery drain, as wifi is usually more stable. Generally the cause of battery drain is due to google services wakelocking the phone. Do you have Greenify downloaded? It's pretty nifty for hibernating apps, causing them to be completely shutdown until opened; preventing wakelocks. If you get the donate version you can even hibernate system apps (google services, etc). I doubt it's ROM related, but you can try another ROM and compare with BetterBatteryStats.
http://forum.xda-developers.com/wiki/Wakelocks
^ That will explain the AlarmManager & ActivityManager-Launch.
Click to expand...
Click to collapse
thanks for the info. I've tried both google edition roms but like I said.. this wasn't an issue on stock touchwiz and it's not an issue on my girlfriends phone running safestrap and goldeneye (we have the same phone). I do have greenify and I've added play music and maps to it as I noticed they would always run in the background. I also noticed in running apps under google services (with wifi disabled) something was running called locationmanager or similar to that. I had all location services turned off tho. I always have full lte service so I'm not sure why it would be going in and out.

Check your kernel wakelocks, your partial wakelocks seems not a big deal, actually on that screenshot IMO facebook is behaving very well.

CyberManiaK said:
Check your kernel wakelocks, your partial wakelocks seems not a big deal, actually on that screenshot IMO facebook is behaving very well.
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Click to collapse
I just unplugged my phone so I'm waiting for updated battery stats. I'm almost positive it has nothing to do with any apps that I've installed. I have greenified alot of apps, and turned off some receivers in google services framework (mostly gtalk stuff) I also did the stuff in this guide: http://forum.xda-developers.com/showthread.php?t=2357417. I'm going to wait awhile to see if there's any improvement, then I was going to try adding some build.prop entries that I used on my LG Optimus L9, a couple are for saving power when the phone is asleep and helping the phone sleep better, and there is an entry to limit how often your wifi will scan. they seemed to help on the lg.

I live in a poor service area and I like to control my WiFi and data on off with juice defender or creative connections I think its called. Helps me a lot. May not solve your prob but might make things easier on you. There is also an app called LTE toggle that makes a on/off widget for LTE. Hope it helps if you try it.

Bubba Fett said:
I live in a poor service area and I like to control my WiFi and data on off with juice defender or creative connections I think its called. Helps me a lot. May not solve your prob but might make things easier on you. There is also an app called LTE toggle that makes a on/off widget for LTE. Hope it helps if you try it.
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Click to collapse
so is this an issue other people have using google edition roms and having wifi disabled? this doesn't happen with stock touchwiz or even stock touchwiz roms so I'm not understanding what the problem could be. I shouldn't have to use another app to stop battery drain just because I don't have wifi enabled

deadenz said:
so is this an issue other people have using google edition roms and having wifi disabled? this doesn't happen with stock touchwiz or even stock touchwiz roms so I'm not understanding what the problem could be. I shouldn't have to use another app to stop battery drain just because I don't have wifi enabled
Click to expand...
Click to collapse
I can't think of anything you haven't already thought of that could cause those issues. I love greenify also but is it possible you greenified an app that is fighting it and trying to connect? I've done that but not es bad as you are seeing. Those apps were a thought to make your life a little easier by not working about WiFi on here and off there. They work good for me for that issue. You probably won't like this but I'm running foxhound 2.0 with faux and killjoy/ccross breeder script and I have a hard time hitting 50% battery after 15 hours off the charger. I have to really game or to a lot to go below that. I also debloat heavily. I havent tried your Roms yet but I had similar results on Alpha ROM. I'll think about it some more though.

Bubba Fett said:
I can't think of anything you haven't already thought of that could cause those issues. I love greenify also but is it possible you greenified an app that is fighting it and trying to connect? I've done that but not es bad as you are seeing. Those apps were a thought to make your life a little easier by not working about WiFi on here and off there. They work good for me for that issue. You probably won't like this but I'm running foxhound 2.0 with faux and killjoy/ccross breeder script and I have a hard time hitting 50% battery after 15 hours off the charger. I have to really game or to a lot to go below that. I also debloat heavily. I havent tried your Roms yet but I had similar results on Alpha ROM. I'll think about it some more though.
Click to expand...
Click to collapse
I tried foxhound and I liked it but the black theme was just too black for me and I don't really like the touchwiz theme. I love the google edition roms. and no at first I flashed a clean ge rom and didn't install any apps at all and I still had the problem. I've also installed ge roms from the i9505 forum and also had the problem. with wifi on I get atleast 2 days on a full charge and about 4 hours of screen on time.

I would suggest do the following charge up to 100% not 90% like your second post. after 100% charge, do a reboot when the phone boots again remove the charger and let it sit untouched for at least 4 hours preferably 8 hours. Then on better battery stats take a screenshot of "Other/unplugged" lets see how much the phone is awake and deep sleep, then take a screenshot of Kernel Wakelocks/unplugged and also partial wakelocks/unplugged
at first I didn't notice that on you second screenshot your stats are for 8% period 90% - 82% and that is a 1%/hr battery drain, is actually pretty good, sure not excellent but there are some that loose 2%/hr

I'm having the same problem with the ge ROM. Battery life seems to go quicker than stock touchwiz. As I like the GE roms interface and things you can do with it just hate the battery life.
4.2.2 Google Play Edition GS4 safestrap.

[email protected] said:
I'm having the same problem with the ge ROM. Battery life seems to go quicker than stock touchwiz. As I like the GE roms interface and things you can do with it just hate the battery life.
4.2.2 Google Play Edition GS4 safestrap.
Click to expand...
Click to collapse
How much time are you getting of deep sleep and how much awake in a 8 hr period ?

Do you have exchange mail enabled? Sometimes I have the same problem with my battery life and that is the issue
Sent from my GT-I9505 using Tapatalk 4

[email protected] said:
I'm having the same problem with the ge ROM. Battery life seems to go quicker than stock touchwiz. As I like the GE roms interface and things you can do with it just hate the battery life.
4.2.2 Google Play Edition GS4 safestrap.
Click to expand...
Click to collapse
are you having the problem with wifi enabled and disabled? I only have the problem when my wifi is turned off, with wifi on I get great battery life with this rom

here's what I added to my build.prop last night and it seems to have fixed the 'android system' battery drain. it's back down to 2% now with wifi off and lte enabled.
Disable Sending Usage Data
ro.config.nocheckin=1
Deeper Sleep / Better Battery Life
ro.ril.disable.power.collapse=1
pm.sleep_mode=1
Wi-Fi to Scan Less Frequently
wifi.supplicantscan_interval=180

New battery, standby time still awful.

Hello!
I recently put a new battery into my Nexus 7 2012 3G. Before that I had roughly 17 hours of standby time (I did nothing with it, it just sat in my backpack while I'm at work), now it's exactly the same.
Now I know that in a case like this the battery has to go through a few charging cycles before everything works at 100% capacity but I did that. I put it in on Wednesday last week and I discharged and recharged it four times already without seeing any sort of improvement.
There is an issue with the wakelocks on the Nexus 7 as far as I remember. I did try different Kernels a few months ago but those didn't help and the tablet just sat on my shelf most of the time since then because it was pretty much useless to me because of the low batterylife. Right now it's running with stock ROM and Kernel.
Do you have any suggestions for me? Does the battery need more charging cycles? Are there any new Kernels or ROMs now that completely fix these issues? I really want to use this damn thing again, especially now that I spent 40 bucks on a new battery that I can't return because I threw away the old one! :good:
Thanks in advance!
Mathias

No ideas? You got some change? Come on, help a guy out!

Have you used any apps to try and hunt down any wakelocks? You may have a rogue app or service or something causing problems. Try GSAM battery monitor, it has a great detailed breakdown of this. https://play.google.com/store/apps/details?id=com.gsamlabs.bbm&hl=en .
17 hours of standby definitely sounds low to me. I'm currently running Dirty Unicorn v8.2 (final KK release) with the included kernel and could go for days on standby. I haven't run stock since the initial purchase of the device (almost 2 years ago now), so not sure about what's "normal" on stock, but that sounds low to me either way.
BTW i have a grouper not a tilapia, but that shouldn't make any difference.

Thanks I will try monitoring it with that!
Mine went on for days as well. But then, completely out of the blue and from one day to the next, the standby time went to ****.
I am pretty busy this week, but that just let's me monitor it properly for a few days while it sits on my bag. I will try flashing a different ROM and Kernel this weekend. Thanks!

I have _very_ good experiences with all kinds of SlimRoms. I have the grouper device, but with SlimBean (4.3) I had standby times for up to 10 days with wifi + sync on! My Samsung SIII has SlimBean on it and I have 3 days standby

When discussing battery issues, there's a huge difference between the wifi-only (Grouper) and wifi + 3G (Tilapia)versions of Nexus 7 2012.
I have a Tilapia, and battery life sucks. There's a bug in the OS, ever since day 1. Meaning that switching roms will have minimal effect.
Been there done that.
You should run some kind of battery monitor as PrizmaticSmoke suggested. I use BetterBatteryStats ( http://forum.xda-developers.com/showthread.php?t=1179809 ).
Running the monitor for a day or so, will most likely show that there's a constant wakelock named "baseband xmm power", chewing through your battery in about 24 hours.
Even putting the device in flight mode doesn't kill the wakelock.
I have resorted to manually selecting a 3G network and then removing the sim. I now have stand-by for about 5 days.

Tommmii, even after just 1 hour of monitoring it "baseband xmm power" is already at the top of the wakelocks that suck the battery dry.
I followed your suggestion of selecting a 3G network and removing the SIM card, but that didn't help me. I still lose about 7% during one hour of standby.

@Matttis
not to rub salt into your wound...I'm getting 0.6% / H, when the tablet is in deep sleep.
There is some good news from your monitoring, at least you know there's nothing wrong with the hardware.
The not-so-good part is that there isn't a 100% sure fix for that wakelock, all I have read point towards hit & miss solutions.
I am not willing to experiment with my own tablet, since that might bring back that pesky wakelock which has now been away for 2 months.
Are you actually using the 3G, or would you be a happy camper "downgrading" your Tilapia to a wifi-only Grouper, with the gain of normal batery-life ?
cheers,
Tom.

My boss recently gave me a SIM with a 5GB LTE plan, I might actually be better off if I just use the hotspot of my phone instead
So yeah, I'd be down with that! I do use the 3G feature, but if that means that I will get normal battery life again... You mean flashing the rom of a non-3G N7?

Matttis said:
So yeah, I'd be down with that! I do use the 3G feature, but if that means that I will get normal battery life again... You mean flashing the rom of a non-3G N7?
Click to expand...
Click to collapse
yup, that is the only thing I will experiment with.
Untill then, here is what i remember doing to get rid of the wakelock:
I was in another country with a prepaid burner sim.
I had manually selected the sim's network, in the hopes that this would alleviate the wakelock. It didn't help ofcourse.
I then forgot all about the previous, and travelled back home.
I then removed the foreign sim.
Wakelock gone.
Caveat : the tablet keeps reminding me that the burner sim's network isn't available... duh... I'm in another country AND the sim isn't inserted, yah I kinda figured the network won't be available.
So, what I think _might_ work : insert any sim, manually select that sim's network, disable data in the mobile network settings, eject the sim, power off, power on.
Then keep an eye on the wakelocks...
good luck.

I did exactly that. I manually selected the network, ejected the sim and now the tablet keeps reminding me that the network isn't available.
Still same issue, that didn't help me.
Is it even safely possible to install a rom for a different device? For example, could I just grab the Lollipop factory image for the N7 wifi version and flash that?

Matttis said:
I did exactly that. I manually selected the network, ejected the sim and now the tablet keeps reminding me that the network isn't available.
Still same issue, that didn't help me.
Click to expand...
Click to collapse
Also disable data in Mobile network settings.
Also reboot.
Then watch the wakelock for at least 30 mins, even an hour.
Matttis said:
Is it even safely possible to install a rom for a different device? For example, could I just grab the Lollipop factory image for the N7 wifi version and flash that?
Click to expand...
Click to collapse
Possible, yes... I want to try it out when I have some time, if only to get that damn Lollipop, which is available for Grouper but not yet for Tilapia.
http://forum.xda-developers.com/nex...a-flashing-t2958685/post57309990#post57309990
http://androidforums.com/threads/my-tilapia-is-a-grouper-now.858189/
http://androidforums.com/threads/grouper-vs-tilapia.668162/

I went ahead and updated my tilapia to android 5.0.2 for grouper.
Wasn't easy, but it runs stable.
Unfortunately it didn't help with the baseband_xmm_power wakelock
So I took this a step further and did a "fastboot erase radio", I will repost if this helps with the battery drain.
update : no use. Reverted back to 4.4.4 KitKat, and did procedure as outlined a few posts earlier. Standby consumption is now kinda normal at 0.5% / H

Tommmii said:
I went ahead and updated my tilapia to android 5.0.2 for grouper.
Wasn't easy, but it runs stable.
Unfortunately it didn't help with the baseband_xmm_power wakelock
So I took this a step further and did a "fastboot erase radio", I will repost if this helps with the battery drain.
update : no use. Reverted back to 4.4.4 KitKat, and did procedure as outlined a few posts earlier. Standby consumption is now kinda normal at 0.5% / H
Click to expand...
Click to collapse
I updated to LP 5.0.2 factory,and the wakelock hit me like a brick. What got it gone was Synman's GwT with carcosa kernel.
In fact it is the stock kernel that causes the wakelock,tried with Multirom(which uses patched stock kernel),and wakelock was back,using 7%/hour.
Flashing carcosa-a33-lp-anykernel removed the wakelock.
http://forum.xda-developers.com/showthread.php?t=2662639
happy flashing