This dual charger allows you to charge (2) BLACK+DECKER® 20V MAX* batteries at one time thus minimizing downtime and helping you keep your POWERONNECT products, from drills to vacuums, charged and at the ready. This charger features LEDs to indicate the state of charge of each battery. This kit also comes with (2) 20V MAX* batteries to jumpstart your power tool collection. If you own multiple 20V MAX* tools this charger is a must have.