Wentronic LR20 2-BL Panasonic Alkaline Power. Battery technology: Alkaline, Battery form factor: Cylindrical, Battery voltage: 1.5 V. Colour of product: Blue, Gold. Weight: 142.7 g, Height: 61.5 mm, Diameter: 34.2 mm. Dimensions (WxDxH): 34.2 x 34.2 x 61.5 mm