1. Mohit Hiralal's Avatar
    My s4 has suddenly started draining a lot of battery lately. In the battery usage section it shows the main culprit is android OS that drinks up 57% of the battery life. Out of the 9(around) hours it has been discharging, 8 hours 15 minutes it remains awake and the rest it sleeps.

    Posted via Android Central App

    Samsung Galaxy S4 insane battery usage. overnight 50%-ss.jpg

    Samsung Galaxy S4 insane battery usage. overnight 50%-ss1.jpg
    10-11-2013 01:52 AM
  2. Haalcyon's Avatar
    That is high for the OS, I notice that right beneath it is Google Services. Are you by chance using Google+ or Hangouts? If so, you may want to try disabling those, temporarily, and see if it has any impact.
    10-11-2013 06:17 AM
  3. Almeuit's Avatar
    I'd get wake lock detector... See what's keeping the OS awake all night.

    Sent from my T-Mobile Note 3 using AC Forums.
    10-11-2013 08:09 AM
  4. hausjam's Avatar
    I am having the same problem. But its not every night. Usually only lose 15% or so overnight. But once it was 60% at midnight and dead at 7am. Now that I think of it, that night was right after I installed hangouts. Google services is always at the top when I have checked.

    Sent from my SAMSUNG-SGH-I337 using AC Forums mobile app
    10-12-2013 01:11 AM
  5. prozacfield's Avatar
    Samsung Galaxy S4 insane battery usage. overnight 50%-screenshot_2013-10-12-10-29-52.jpg

    Here's mine overnight. You need to check what keeps your device awake, it's not normal at all. Get BBS or Wakelock Detector and scan your device for malware/viruses.
    10-12-2013 02:36 AM
  6. prozacfield's Avatar
    Getting external battery doesn't solve the problem. I have 18 hours and even more on battery (and i'm heavy user), so we need to help OP to get the same.
    10-12-2013 04:35 AM
  7. Haalcyon's Avatar
    Getting external battery doesn't solve the problem. I have 18 hours and even more on battery (and i'm heavy user), so we need to help OP to get the same.
    Battery life depends largely on usage, though. Unless we're all using the phone as little or as much in the same way it may be a challenge.

    from my '14 Note 10.1
    10-12-2013 10:40 AM
  8. prozacfield's Avatar
    Battery life depends largely on usage, though. Unless we're all using the phone as little or as much in the same way it may be a challenge.

    from my '14 Note 10.1
    Sure but: I get 18 hours and i really use the phone playing games, browsing the net etc. OP has five hours doing nothing. Strange.
    10-12-2013 10:45 AM
  9. Haalcyon's Avatar
    Sure but: I get 18 hours and i really use the phone playing games, browsing the net etc. OP has five hours doing nothing. Strange.
    Look at the included screen shots. Notice his signal? That may be contributing.
    10-12-2013 11:16 AM
  10. prozacfield's Avatar
    Look at the included screen shots. Notice his signal? That may be contributing.
    Yeah I see. Don't know what to do with it though.

    Sent from my GT-I9505 using Tapatalk now Free
    10-12-2013 11:46 AM
  11. STSVA's Avatar
    The best bet is probably airplane mode, unless the OP really needs the cellphone for phone calls. I have a weak signal like that and use a landline at home; with airplane mode on and only using wifi when I need it, I'm still at 70% battery after almost 48 hrs. on battery (only about 1 hr. of screen time, however); I know that's not typical usage, but it supports the point that how the phone is set up and used has a major impact on battery drain. I'm also using Snapdragon's BatteryGuru and Lux Auto Brightness to help control things like app sync and screen brightness that can drain the battery. Oddly enough, BatteryGuru requires that location services be on, but I found it will work as long as location services is on just with network/wifi, even when I have it in airplane mode and wifi off.
    Mohit Hiralal likes this.
    10-12-2013 07:21 PM
  12. Mohit Hiralal's Avatar
    Got wakelock detector and found out there was this thing the "wlan_ctrl_wake". Its using up all my battery. Its an internal application
    10-13-2013 11:24 AM
  13. Mohit Hiralal's Avatar
    Will do. Thanks
    10-13-2013 11:25 AM
  14. Mohit Hiralal's Avatar
    I'll try disabling sync.
    10-13-2013 11:29 AM
  15. Mohit Hiralal's Avatar
    may i know who is OP?
    10-13-2013 11:36 AM
  16. STSVA's Avatar
    may i know who is OP?
    That is you - "OP" is an Internet abbreviation for "original poster" or "original post".
    Mohit Hiralal likes this.
    10-13-2013 12:11 PM
  17. Mohit Hiralal's Avatar
    That is you - "OP" is an Internet abbreviation for "original poster" or "original post".
    Thanks for that!

    Posted via Android Central App
    10-14-2013 03:49 AM
  18. Mohit Hiralal's Avatar
    I may have found a solution to the problem after all. I guess it was the signal of my wifi channel which was below average. So I changed my channel and all seems fine for now.

    Posted via Android Central App
    STSVA likes this.
    10-14-2013 03:54 AM
  19. hausjam's Avatar
    That makes some sense. I have been having some WiFi issues. At my moms house I always seem to lose WiFi after a bit and have to reboot to get it back. And at home I have occasional WiFi problems.

    Sent from my SAMSUNG-SGH-I337 using AC Forums mobile app
    10-19-2013 08:40 PM
  20. ghostimage1's Avatar
    I am having a similar problem but only in the last few days...82/83% Androis os usage. I even put it in flight mode...dropped 1% :S I have tried rebooting still the same

    Samsung Galaxy S4 insane battery usage. overnight 50%-screenshot_2013-11-17-10-42-11.jpg
    Samsung Galaxy S4 insane battery usage. overnight 50%-screenshot_2013-11-17-10-48-45.jpg
    11-17-2013 05:00 AM

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