这应该是 12月的BIOS 中做的更改.
Changing the default setting to Maximize My Battery Health causes the following:
This setting results in a reduced run time between charges, because it limits the charging capacity of the notebook’s battery to 80% of the currently available full charge capacity.
You will continue to see the battery charge at 100% in the Windows icon tray, with 100% representing the new, adjusted full charge capacity.
The change to Maximize My Battery Health has no impact on the system performance.
Before this update, Maximize My Battery Health caused the Windows icon tray to display a maximum charge of 80%. After the update, the Windows icon tray displays a maximum charge of 100%. This change was made to create a more user-friendly and consistent customer experience.
After this update, if you are running the Windows 11 operating system, a small heart icon is displayed in the Windows icon tray. This heart icon indicates that a battery health feature has been enabled.