Android (5.0 and up): Android has a pretty powerful tool that allows you to see what’s been using your phone’s battery since it was last charged. If you’re using it often, this shortcut makes it easier to get to.
To access battery stats quicker, simply pull down the Quick Settings shade (which you can do by swiping down from the top of the screen twice with one finger, or once with two fingers). Then, tap the battery icon at the top of the screen, as seen above. Handy, right? It’s not a life-changing shortcut by any means, but it’s nice to know that’s there, rather than having to dive into the Settings app every time.
How to quickly access battery stats on Android Marshmallow and Lollipop devices | Phone Arena