Keeping Your MacBook Plugged In At 100% All the Time

A lot of people use their MacBook like a desktop. They connect it to an external monitor, plug in the charger, and leave it there for days or weeks. That’s convenient, but keeping it fully charged all the time can contribute to battery aging over the long term.

Lithium-ion batteries naturally wear down, and spending too much time at full charge can add extra stress. Apple’s Optimized Battery Charging is designed to help with this by learning your daily routine and reducing how long your Mac stays fully charged.

If macOS pauses charging around 80%, don’t immediately assume something is wrong. Your Mac may be trying to protect battery health. If you need a full charge before leaving, you can choose to charge to full when necessary.

Keep Optimized Battery Charging turned on in System Settings > Battery > Battery Health.