Battery pack changes voltage when you change tools, powering a line of powerful 60V MAX* tools, 120V MAX* tools, and backwards compatible to existing 20V MAX* tools and chargers. The battery pack is smart enough to know when to provide runtime for 20V MAX* tools (6.0Ah) and power in 60V MAX* and 120V MAX* tools FEATURES The Power of corded, The Freedom of cordless 4X runtime compared to DCB201 1.5Ah Battery Pack 3X Power compared to DC9096 18V Battery Tri-Platform Compatability 20V MAX*, 60V MAX* and 120V MAX* LED State of Charge Display Durable construction with a single peice cell holder * Maximum initial battery voltage (measured without a workload) is 20, 60, and 120 volts. Nominal voltage is 18, 54, and 108. 120V MAX is based on using 2 DEWALT 60V MAX* lithium-ion batteries combined. ** With DCB606 FLEXVOLT® battery when used with DEWALT 20V MAX* tools compared to DCB201 1.5 Ah battery pack.