which is the best battery monitoring app available for lumia1020?
I am looking for a battery monitoring app for my lumia 1020. I it is currently on denim wp8, latest available version. I am having severe battery drain problem. I read some threads and tried restarting the phone when i get battery low notification . when battery was at 6% , i switched off manually and when I turned back on, it shows 13%. I think some things wrong with calibration (what i learned from some threads here).
1. pls suggest a battery monitoring app
2, suggest solutions to solve the calibration
3, if there is some other tests to check battery , pls mention that too...
the main drain is when i browse the internet.