5 Things to Know About Charging Your MacBook Air to 80%

Keep your MacBook Air charged to around 80% most of the time to maximize battery lifespan. Lithium-ion batteries degrade fastest when sitting at full charge or fully drained.

macOS has Optimized Battery Charging that learns your routine and holds at 80% until you are about to unplug. This feature works well for most users.

If you keep your laptop plugged in all day, Optimized Battery Charging might not kick in often enough. Use a third-party tool like AlDente or Battery Health 2 to set a hard 80% limit.

You do not need to obsess over the exact charge level. Just avoid leaving it at 100% for weeks on end.

Future you will thank present you for extending the battery lifespan. It is a simple habit that pays off.