In macOS Big Sur, Optimised Battery Charging is designed to improve the lifespan of your battery and reduce the time your Mac spends fully charged. When the feature is enabled, your Mac will delay charging past 80% in certain situations. Your Mac learns your charging routine and aims to ensure that your Mac is fully charged when unplugged.
If you need to your Mac to be fully charged sooner, click Charge to Full Now in the battery status menu.
Check the charge status
When Optimised Battery Charging is active, the battery status menu displays when your Mac will be fully charged or whether charging is on hold. If you keep your notebook connected to a power source most of the time, you might see the message "Charging On Hold (Rarely Used On Battery)" when charging is paused.
Pause or turn off Optimised Battery Charging
If you want to temporarily pause or turn off Optimised Battery Charging, follow these steps:
- Choose Apple menu > System Preferences.
- Click Battery, then select Battery in the sidebar.
- Deselect "Optimised battery charging", then click Turn Off or Turn Off Until Tomorrow.