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Yet another battery life question


New member
Mar 17, 2018
I have a Galaxy S5 Active, and I can watch its battery drain by a percent every few minutes as I use it. I recently didn't use my phone for most of a day and it was down to 27%. I need help understanding how to read and interpret the battery usage details. In the battery setting, it listed this information:

Android system 3%
Screen 2%
Cell standby 2%
Android OS 2%
Wi-fi 1%
Device idle 1%
Google services 1%

If I am reading this right, something else, that is not in the list, is draining most of the 73% of the battery life that has been used. Am I reading this display the right way? Is there a way to diagnose what else is using up the battery?

B. Diddy

Senior Ambassador
Mar 9, 2012
Welcome to Android Central! In older versions of Android, they used relative percentages, not absolute.

Charge up to 100%, then let it drain to 20-30% with normal usage, without charging in between. Then show us:

1. The main Settings>Battery screen.
2. The fullscreen battery graph screen (which shows Awake time and Cell Signal Strength).
3. The Screen category (to see total Screen On time).
4. The Cell Standby category, if present (to see Time Without Signal).

You might have to install a 3rd party battery monitor, like GSam Battery Monitor, to get the Cell Signal Strength graph.