Wattagio

Wattagio is powerful battery assistant. It informs you about current battery health and helps to decrease power usage. Flexible settings in the application give you options to customize your profile to meet your needs.
Features: -Helps you to keep battery healthy -Reads out the raw battery data to give you more precise information -Detailed stats & health Information for MacBook's battery -Shows proportion of battery used by each app -Customizable battery status in menu bar for every mode (On Battery/Charging/Full Charged) -Automatically closes applications being unused for a long time -Comfortable notifications help to determine applications that consume big amount of MacBook's energy -Battery widget -Battery level notifications -Airplane mode.
Customizable battery status in menu bar - advanced battery settings in menu help to adjust many options: battery's level in percentage, amperage, tension, temperature, horizontal or vertical battery status icon.