Battery hd is the app only available on google playstore the size is 13.31mb this app is very accurate tells about the charge cycles of your mobile phone and gives the graph of power usage while doing different task.
And it can tell which app is draining the battery, it tells about the estimated usage of your battery for how much hours it can play videos, music and gaming if you face problems with your battery draining you can use this app it is very good and easy to use and the app looks good in looks and I didnt notice any lag in the app the app is properly optimised
