This First To World ToughSystem 2.0 compatible DeWalt Battery Charger is a 2-port fast charger that charges 20-Volt MAX and FLEXVOLT 20-Volt/60-Volt MAX batteries (+ mobile devices) at the same time. This integrative tool provides the ultimate solution for storing and charging battery packs in a secured compartment protected and durable against weather/rough environments. The storage space can hold up to (12) 20-Volt MAX batteries in addition to the 2 batteries being charged simultaneously