Why is Android OS using 64% of my battery

[AC Question]

I have a Samsung Galaxy and the battery is being drained all the time by Android OS - what is that and can I get rid of it ?

 

[B. Diddy]

Welcome to Android Central! Which phone exactly? Does it persist after a reboot?

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).

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