FEATURES 12Ah XR FLEXVOLT Battery. Voltage steps up to 54V to deliver unprecedented power. 22mm high capacity battery cells delivering 216Wh of energy for longer runtime without increasing the size and weight (125mm x 85mm x 90mm, 1.2Kg). Compatible with all 18V XR and 54V XR FLEXVOLT tools and all 18V XR chargers ? one battery for multiple use and extended runtime. State of Charge (SOC) indicator to visualise runtime for less downtime. SPECIFICATIONS Batteries ? Battery. Battery Composition ? Lithium-ion (Li-Ion). Sub-Type ? Battery. Type ? Batteries. Type ? XR FLEXVOLT. Voltage ? 18/54. Battery Capacity (Ah) ? 12Ah. Wh ? 216. Cell Components ? 15 x 21mm cells. Enables High Power XR ? Yes. Length (mm) ? 138. Width (mm) ? 87. Height (mm) ?