Your remaining battery time in the menu bar
Battery Indicator is a macOS app that shows the remaining battery time in your menu bar.
Powerful battery informer and save power assistant for Mac
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.
Battery Health 3 for Mac is a professional battery monitoring utility for viewing vital statistics about your MacBook's and iOS device's battery, such as power level, heath, capacity, temperature, charge cycles and more.