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Old September 8th, 2013, 08:36 AM   #1 (permalink)
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Default Device Idle battery drain

Hi all,

I'm having a device idle battery drain issue with my Samsung Galaxy S4, and I was hoping I could get some input on it. I took screenshots of my battery info, but since I'm a new user I don't know if I'll be able to post attachments yet, so I'll post the data as well.

(EDIT: Looks like I was able to attach images at the bottom.)

I got the phone in late July, and I initially had battery drain issues, but once I shut off all the syncing, location searching, disabled apps I won't use, etc., the problem went away. I was only losing a few percentage points of battery overnight, and I only had to charge my phone every other day.

A few days ago, I was trying to upload a photo to Facebook, and my phone froze doing it. (It was in the notifications bar forever, neither going through or failing.) I decided to just power off and then power on my phone, and that fixed the upload problem, but I noticed my phone downloaded a bunch of updates afterwards -- I didn't get the chance to see what they all were.

Since then, the battery drain on my phone has increased significantly. I was only charging every other day before, but now I have to charge before 24 hours are even up, and that's with extremely limited screen time. It looks like the biggest culprit is the "device idle" battery drain, which I know wasn't this much before. I went to bed at about 10:30pm last night with 67% battery left, and I woke up at 8:00am with 17% battery left. In the History Details, under Awake, there are little blue bars popping up repeatedly, which seems to indicate that there's something waking up my phone every once in a while and draining battery, but I can't figure out what it is.

I checked my data usage, since that was the problem before (with Google Maps and the like), but it's all normal.

My battery stats are:

19h 5m 44s on battery

43% screen (58m "on" time)
23% device idle (the "on" time is over 18 hours)
9% Chrome
8% Cell standby
8% Android System
5% Android OS


Honestly, I'm totally stymied, and I can't locate anything my phone downloaded that might have caused this. Could this be a temporary problem that will fix itself? Do I need to do a factory reset? Any ideas would be great.
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Last edited by stormydown; September 8th, 2013 at 08:37 AM. Reason: attached pictures
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Old September 8th, 2013, 10:16 AM   #2 (permalink)
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Looks like something is keeping the phone awake at intervals when the screen is off. Check your sync settings in all your apps. Check location settings.
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Old September 8th, 2013, 12:20 PM   #3 (permalink)
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Quote:
Originally Posted by tytlyf View Post
Looks like something is keeping the phone awake at intervals when the screen is off. Check your sync settings in all your apps. Check location settings.
Could the Facebook app be the problem? Is this a common thing? I don't know if it updated or not after I restarted my phone a few days ago, but I see that Facebook is always running processes/services in my list of apps, even when the app isn't open -- and like all my other apps, I disabled all notifications, syncing, location finding, etc. The only time those processes and services stop running is when I disable the app. I'm only pointing this one out in particular because none of my other apps seem to be constantly running like Facebook does.
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Old September 9th, 2013, 10:34 AM   #4 (permalink)
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Install this free app (Wakelock Detector): https://play.google.com/store/apps/details?id=com.uzumapps.wakelockdetector

(it's a touch better than better battery stats, IMO)
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Old September 9th, 2013, 06:02 PM   #5 (permalink)
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Stormydown. Welcome. They might be right, sounds like something may be keeping ur phone awake. Try two things : first, turn off wifi when charging or if ur sleeping or plain just dont need it. I found that saves me a ton of battery life. Second, download an app that keeps things from starting when u reboot ur phone. No app specifically comes to mind right now, but i use battery doctor and it has that option. Im sure there are apps specifically for that tho. I'll do some searching for u
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Old September 12th, 2013, 09:00 PM   #6 (permalink)
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Maybe your notifications are waking up the screen during the night, therefore draining the battery.
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