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I have a Samsung Galaxy S5 that is approximately six months old. My OS version is 4.4.2, and my provider is AT&T.

The battery in my S5 will usually last me 2-4 days without charging, depending on use, but two or three days ago the battery started dying very quickly despite minimal use. The battery will no longer even last 24 hours without use. I checked my phone's battery usage, and com.android.systemui seems to be causing the excess battery drain.

What's causing com.android.systemui to drain so much battery, and what can I do to fix it?

Battery usage
Battery usage (click image for larger variant)

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I haven't figured out what was causing the problem, but I did manage to fix it. I restarted my S5, and the process that was consuming all of the battery seems to have stopped. com.android.systemui is only responsible for 4% of the battery drain after restarting and recharging.

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com.android.systemui is the GUI for android every thing you do on your phone like typing or browsing the web will use this so it will drain your battery the most.

yo can try not using your phone for a day (put it on standby for 24 hours and see if it lasts) if it doesn't your battery maybe degraded and need replace.

Hoped this helped

  • com.android.systemui doesn't typically use as much power as Android System, Screen, or Android OS. Also, if this were a problem with the battery itself, it wouldn't have occurred suddenly and wouldn't be attributing all of the excess drain to one software process. – Brian Nov 24 '14 at 15:30

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