Specifications: Voltage: 2.4V Capacity: 650 mAh Brand: Sanyo Model#: 2N-650SC Chemistry: NiCD (Nickel Cadmium) Rechargeable Size: 2 x 1/2 Sub-C Recharges up to 500 cycles Included Qty: 1 Dimensions and Weight: Length: 2.09 (53 mm) Diameter: 0.91(23 mm) Weight: 1.94 oz (55 g)