The chat app you can only use when you have less than 5% battery.
Die together in a chatroom on your way to offline peace.
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.
Battreminder is a light-weight minimal browser extension, which lets you track your laptop's battery level and reminds you with a sound notification when the battery is fully charged!