Battery Charger, Battery Capacity 1.5 Ah, 12.0 Ah, 2.0 Ah, 3.0 Ah, 4.0 Ah, 5.0 Ah, 6.0 Ah, 8.0 Ah, Battery Capacity Charged in 1-Hour 12 Ah, Number of Ports 2, Charging Port Voltage (2) 18V, Charger Input Voltage 120V, Charger Class Extreme, Charging Type Simultaneous, For Battery Chemistry Li-ion, For Use With Milwaukee M18(TM) Batteries