Should I leave my MacBook Air plugged in all the time?
You shouldn't leave your MacBook Air plugged in all the time, as the battery suffers wear when being charged to full. And over time, the charged capacity will drop as well as the usable time. Here are the tips for better battery life: Enable Optimized battery charging. Unplug your Mac daily and let it discharge to 30% - 40%. Don't discharge your Mac to 0.