The BP-M50 is a 49Wh NiMH (Nickel Metal Hydride) rechargeable battery pack. Offers additional solutions for your energy requirements for camcorders, cameras, portable VTRs and other "V-Shoe" mount devices. The "V-Shoe" connector locks the battery to any V-shoe equipped device. The BC-M50 charger can charge a single BP-M50 in approximately 120 minutes.