Apple Macbook Pro M1 – Auto Change Brightness

Every time I use my Apple Macbook Pro M1 the brightness is automatically changed. It becomes very dimmed when I use the Macbook while on battery power.

Found the solution in Apple forum and put the steps in screenshots for easy for troubleshooting for other Macbooks users.

1) Go to battery preferences

apple macbook pro M1 - battery preference
apple macbook pro M1 – battery preference

2) If your Slightly dim the display while on battery power is checked, please uncheck it.

apple macbook pro M1 - checked slightly dim the display
apple macbook pro M1 – checked slightly dim the display
apple macbook pro M1 uncheck slightly dim the display
apple macbook pro M1 uncheck slightly dim the display