Utilities
Battery Indicator
Sindre Sorhus
About
Shows remaining battery life and percentage in the menu bar.
The app has a setting that allows you to hide the menu bar icon when the power jack is connected, which can be useful if battery life/battery percentage is something you only care about when running on battery power.
You can hide the system battery indicator by dragging its icon from the menu bar while holding down the Command key. You can also rearrange the order of icons in the menu bar by Command-dragging them. This means you can place this app exactly where the system battery indicator used to be.
There is also the ability to notify when the battery is fully charged or at a certain percentage level.
In addition, the application supports the Shortcuts function.