This BP-2CH dual channel battery charger has a built-in protective circuit to prevent the battery from overcharging, overvoltage and overcurrent.
Specifications:
Charging Voltage: DC 16.8V
Charging Current: 3A(ONE battery); 2A(TWO battery)
Rechargeable Battery Capacity: unlimited
DC Output Voltage: DC 16.5V
DC Output Current: 4.5A
Working Temperature: 0℃~40℃
Dimensions: 141×100×224.70mm/5.55×3.94×8.85inches
Weight: 1.2kg
Not:please take the battery out when not using the charger.