Why does my Samsung Galaxy phone lose charge so quickly?

[AC Question]

Went from 70% to 15% in an hour -and- a-half while not in use. Do I need a new battery?
This has been happening for about a week.

 

[anon8380037]

Hello. Try posting screenshots of your Battery graphs and data usage. We can try and pinpoint it.

If you can spin the battery on a flat surface it is bulging and would need replacement.

http://forums.androidcentral.com/showthread.php?t=413366