Battery Charger, Battery Capacity 4.0 to 6.0Ah, Charge Time (4 Ah) 90 min, (6 Ah) 130 min, (7.5 Ah) 170 min, Battery Capacity Charged in 1-Hour 2 Ah, Number of Ports 1, Charging Port Voltage (1) 40V, Charger Input Voltage 120V AC, Charger Class Standard, For Battery Chemistry Li-Ion, Indicator Light Yes, Plug Type Two-Prong, For Use With DEWALT(R) 40V MAX Lithium Ion Batteries