Simple Battery Graph (com.saltpp.simplebatterygraph) on Google Play
* No advertising version is here.* The file size of this tool is reduced to 29KB from 512KB by removing advertise.Simple Battery Graph displays an interactive graph of battery level.You can measure how much energy is consumed/charged per hour.How to use:- Drag on graph to scroll- Pinch in/out on graph to change time-axis- Drag green label on the bottom to change measurement period (Thick short green line indicates actual recorded point which is automatically chosen nearest point from thin green line)Battery level is recorded for only latest 10 days.