How to get low/full battery alerts on macOS using a free app called Battery Monitor: Health, Info
A Macbook has a pretty great battery life to begin with it and you’ll find that it outlasts a lot of other laptops that are available in the same or higher price range. Like any battery, a Macbook’s battery has a limited number of cycles that it can be charged through and after that, slowly, very slowly, it will begin to hold less charge. The decline is slow however, if you want to keep an eye on its charge level, you can enable low/full battery alerts on macOS.
Install Battery Monitor: Health, Info and run it. It will add an icon to the menu bar that will indicate if the battery is currently charging. If it’s discharging i.e., you’re running on battery power, it will show you the current battery percentage and time remaining.
See https://www.addictivetips.com/mac-os/get-low-full-battery-alerts-on-macos/
How to get low/full battery alerts on macOS How to get low/full battery alerts on macOS |