Features:

• World's first convertible power tool battery pack
• Compatible with all 18v XR and 54v XR Flexvolt tools
• A 54v Battery that has unprecedented levels of power
• On a new XR Flexvolt powertool the battery voltage steps up to deliver superior performance
• It can switch itself to 18v so is compatible with existing 18v system
• Run x2 simultaneously for 108v super powered Flexvolt cordless kits
• On a traditional XR powertool the XR Flexvolt battery operates at 18v and delivers extended runtime

Specifications:

• Voltage: 18v / 54v
• Battery Capacity: 9.0Ah XR Flexvolt