Dual-channel Li-ion battery charger,nnnAC Input: 100~240 VAC 47~63 HznnAC-DC Output: 20 V/2.0 AnnCharging Output: 16.8 V/2.0 AnnPower Consumption: 40 WnnDimensions: 109 (L) mm × 104 (W) mm × 42 (H) mmnnAC-DC Weight: 300 gnnCharger Weight: 330 gnnnBattery Charging: Two DF-U65 batteries can be charged simultaneously.nnnThe LCD screen displays the charging status. It takes approximately 3 hours to charge one battery. 6 hours to charge two batteries. When charging a single battery, fast charge (3 hours) and slow charge (6 hours) options are available. The AC-DC adapter can only be used as a power source for the charger. It must not be used as a DC output.