BestBatteryStats Pretty much everything you could want if you're looking for an app that actually does what it says (monitor your battery) without trying to cram in enough worthless features that your battery is worse off than when you started (every other app it seems like ). The UI might be basic and a bit sparse  but much of the actual battery information provided is stuff that no other app seemed to have available. Plus the developer is very quick to respond to any questions or issues you might have.
October 07 2014