DEWALT FLEXVOLT Series DCB615 Cordless Battery Pack, 20/60 V Battery, 15 Ah

The FLEXVOLT® 20/60 V MAX 15 Ah battery provides the highest capacity of any battery on the DEWALT cordless system. It changes voltage when going from 20 to 60 V MAX tools and is compatible with a variety of 20 V MAX tools and chargers. In 20 V MAX tools it will provide extended runtime. In 60 V MAX it will deliver cordless 60 V MAX power.