This is a rechargeable Lithium-ion battery pack, model: Fujikura BTR-09; rated capacity 3750mAh 14,8V; compatible models: Fujikura FSM-19S FSM-70S FSM-80S. Brand : Fujikura Capacity : 3750mAh Voltage : 14,8V Encoding : FUJ20DE1030_OTH Product color : Black Chemistry : Li-ion Description : Fujikura FSM-19S FSM-70S FSM-80S For more details to click here.