In Android Lollipop, how do I see how long it has been since the last time I charged the battery? I mean I can get the approximate time by eye-balling the graph shown in Settings -> Battery. But, is it possible to get a precise time period like: "your device has been running x hours y minutes since last charge".
Or any app that can give me this info? All battery apps seem to concentrate on telling me how much longer the device can last from now. No history info.
Note: I'm not asking about the up time :-)