From here, uncheck the box for ‘ Slightly dim the display while on battery power.’Īnd on macOS Catalina or earlier, you should see this option in System Preferences > Energy Saver > Battery > Slightly dim the display while on battery power. On older versions of macOS, like macOS Monterey or macOS Big Sur, you’ll find this option in System Preferences > Battery.

Turn off the switch for ‘ Slightly dim the display on battery‘ and click Done.Īfter this, your MacBook won’t lower the screen brightness automatically when you unplug it.

Click the Apple icon  and choose System Settings on MacBook running macOS Ventura or later.

Stop MacBook from lowering the screen brightness on battery power So, if you find yourself in this group who prefer screen brightness over battery backup, turning off the automatic lowering of display brightness can come in handy. However, while editing videos & photos, performing color correction in media files, watching movies, playing games, and such, you may want the screen brightness to be at the maximum crisp level – even when you’re away from the charger. Thus, it’s enabled by default in every modern version of macOS running on Apple silicon like M1, M2, and its successor (which offers great battery backup) or an Intel processor. Why you might want to stop thisįor everyday users, lowering MacBook’s screen brightness on battery power is a thoughtful feature. Note: You may not notice the screen dimming when you remove the charger if your MacBook is in Low Power Mode or its brightness is already set to a very low level. To ensure you can use your laptop for an extended period on a single charge and to reduce the burden on its internal battery, macOS slightly dims the screen brightness. However, the moment you turn off the charger or unplug it, your MacBook resorts to using its battery power. When your Mac laptop is charging, it can get continuous power from the adapter. Unlike Mac desktop computer, MacBooks have an internal battery. Screen brightness (and keyboard backlight) are among the top consumers of power on your Mac. If you don’t want this to happen, here’s how to stop your MacBook Pro or MacBook Air from lowering the display brightness on battery power. Your MacBook screen brightness dims automatically when you unplug its charging cable.

Auto adjust brightness mac