DeWalt 20v-60v Max FLEXVOLT DCB606-2 6 Ah Lithium-Ion Battery Combo Pack 2 PC

The DCB606 20 V/ 60 V max battery pack changes voltage when you change tools, powering a line of powerful 60 V max tools, 120 V max tools, and backwards compatible to existing 20 V max tools and chargers. The battery pack is smart enough to know when to provide runtime for 20 V max tools (6.0 Ah) and power in the new 60 V max and 120 V max tools.Battery provides long run-time and battery lifeThree-LED fuel gauge system allows immediate feedback on state of chargeNo memory and virtually no self-discharge for maximum productivity and less downtime