This DEWALT Battery Charger is a 4-port fast charger that charges 12-Volt MAX, 20-Volt MAX, and FLEXVOLT 20-Volt/60-Volt MAX batteries at the same time. This rapid charger quickly charges a 4.0 Ah 20-Volt MAX battery in 40-minutes and a 6.0 Ah 20-Volt MAX battery in 60-minutes. It is also designed to fit our Tool Connect Tag. The DCB104 DEWALT multi-charger also features thru-hole wall mounts so it can be wall mountable in no time at all.