Description Get power for your most demanding jobs with the FLEXVOLTÂ 20V/60V MAX* 9Ah Battery. Compatible with 20V MAX*, 60V MAX*, and 120V MAX* tools, these batteries feature patented technology that automatically switches voltage when you change your tools. Engineered to run cooler than the leading competitor 9Ah battery***, this battery provides up to 6X the runtime** when used in 20V MAX* tools.Dual-voltage for ultimate flexibility180 watt hours of energy in each battery pack. Get 360 watt hours when using (2) FLEXVOLTÂ 9.0 Ah batteries in 120V MAX* tools6X runtime** when used in a 20V MAX* toolsRuns cooler than leading competitor 9.0 Ah battery for better efficiency***Compatible with all 20V MAX* chargersCompatible with all 20V MAX*, 60V MAX*, and 120V MAX* tools and productsSilicone encapsulated module helps keep dust and debris outOperates in outside temperatures down to 0Â FLED charge status display on batteryBattery Capacity: 9 AhBattery Type: Lithium-IonCharge Time: 45 minHead Type: CSK HeadNumber of Pieces: 1Product Height: 8.1 inProduct Length: 7.6 inProduct Weight: 3.45 lbsProduct Width: 3.625 inVoltage: 20V/60V MAX* FLEXVOLT V