Mac books have an auto-brightness feature like the iPhone and iPad. This auto brightness function adjusts the brightness of the screen according to the brightness of the room. It is useful to prevent eye strain. If you’ve ever had access to a Windows machine, you know that in addition to automatic brightness, you can use the operating system to set a certain brightness level on battery power. So far, macOS doesn’t have one. Meet Bitter; it is an exceptionally smart application that can adjust the screen brightness according to the battery charge level. If the battery is low, the screen dims.

Screen brightness when charging the battery

Bitter there are no customization options. This is both good and bad. Good because it works without any settings. Bad because it doesn’t allow you to set a minimum brightness level that the screen shouldn’t fall below. It adds a battery icon to the menu bar and nothing else. The icon cannot be hidden. To quit Bittery, click the icon in the menu bar and select the quit option.

Energy saving features

If you want to extend battery life on the go, you also need to consider power-saving settings that macOS naturally supports. Again, they haven’t been like Windows Power Plan Management in years, but they are something. Power-saving settings let you put hard disks to sleep, choose when your system goes to sleep, and when your monitor goes to sleep when you use the battery.

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