Battery Smart Charging is a feature that helps protect your battery from the effects of charging patterns and high temperatures that may accelerate battery aging or lead to expansion.
Battery Smart Charging is always active(by default) and can’t be deactivated permanently on your Surface device. However, you can temporarily pause it to ensure full battery charge in case of emergencies. It turns on automatically to limit battery charging to 80% when it detects that your Surface is plugged in for prolonged periods and/or used at elevated temperatures.
Smart Charging features may differ depending on the Surface model.
