Wentronic MP f/ SIE C30/M30 700mAh Ni-MH. Battery technology: Nickel Metal Hydride, Battery capacity: 700 mAh, Battery voltage: 3.6 V. Weight: 43 g, Width: 31 mm, Depth: 52 mm. Colour of product: Black, Blue, White. Dimensions (WxDxH): 31 x 52 x 11 mm