Looking for battery usage graph

[sum123]

Anyone can recommend me Free app for this?
I want to know when my battery drops. Thanks in advance.

 

[kataran]

Welcome to iMore

iOS has its own battery usage monitor found in Settings but if you really want a 3rd party app which are all not that accurate

Try

PowerGuard or System Monitor

 

[Ledsteplin]

I don't know of an app that shows a graph. Most show %.
Battery Life Magic is as good as any. The monitor in Settings shows what % of battery usage the apps use. But that mostly just tells you which apps you used most. Just because an app uses 40% doesn't mean it's a battery hog. Just that you used that app a lot during the 24 hour period.