DeWALT FLEXVOLT DCB609 20V/60V MAX 9.0 Ah Li-Ion Battery

The dual-voltage 20 v/ 60 v max flexvolt® 9.0 ah battery automatically changes voltage when you change tools, providing up to 6x runtime in 20 v max tools and the power of corded in 60 v max and 120 v max tools. take on tough jobs with this battery because patented technology and large format cells mean it runs cooler than the leading competitor 9.0 ah battery pack under a constant discharge. this is the battery for flexvolt® power and long runtime.