How to enable Low Power Mode on a MacBook

Low Power Mode attempts to make your MacBook’s battery last for a long time. It lowers the brightness and clock speed to make your Mac quieter. Every MacBook Pro as of early 2016 has a low power mode. None of the MacBook Air models supports Low Power Mode as of December 2021, though it may change in the future.

How to enable it

1. Open System Preferences
2. Click Battery
3. In the side tab, be sure to click Battery
4. Click the Low Power Mode toggle

If you would like to use Low Power Mode while your MacBook is charging, you can do so by doing these steps.

1. Click Power Adapter
2. Click the Low Power Mode toggle

Now your MacBook will run slower while staying alive for longer.