Battery Monitor Widget app
With Battery Monitor Widget you can control your Battery status, here are some features:
– Fuel Widget
– Circle Widget, with big numbers
– Neon Gauge Widget
– Alarms and Notifications, to help saving battery
– Battery indicator on the notification bar
– General and Weekly Statistics
– Charts, to monitor your battery drains
– Simple and neat interface
– Support for Tablets and Android 6.0 Marshmallow
A Pro version is available with plenty of Widgets personalizations, lots of settings and no ads.