7.4V/11.1V Dual Charging Ports: Equipped with 7.4V and 11.1V dual charging ports, which can be applied to the charging needs of 2S or 3S lithium batteries. Applicable range: 2S(7.4V)-3S(11.1V). 10W Power: Supports 10W power output for B3 2-3S lithium batteries.