How to make your MacBook battery last all day

Click on the Settings app and then head over to Battery. Look for Low Power Mode.

There you’ll find a few options.

For the longest battery life possible, I have this set to Only on Battery. This does have a small impact on performance, so if I need max power, I either connect the laptop to the power adapter, or change this setting to Never.

In real terms, though, unless I’m doing something demanding like heavy Photoshop work or some video editing, I don’t notice a difference.