BLACK & DECKER DCB609 Flexvolt®, Max Lithium-Ion Battery

Dual-Voltage For Ultimate Flexibility. 180 Watt Hours Of Energy In Each Battery Pack. Get 360 Watt Hours When Using (2) Flexvolt&Reg; 9.0 Ah Batteries In 120V Max* Tools. 6X Runtime** When Used In A 20V Max* Tools. Runs Cooler Than Leading Competitor 9.0 Ah Battery For Better Efficiency***. Compatible With All 20V Max* Chargers. Compatible With All 20V Max*, 60V Max*, And 120V Max* Tools And Products. Silicone Encapsulated Module Helps Keep Dust And Debris Out. Operates In Outside Temperatures Down To 0&Deg;F. Led Charge Status Display On Battery.