Varta Superlife zinc faucets offer a very good value for money. They are an ideal choice for low-power devices such as wall clocks, alarm clocks or remote controls. Varta Superlife zinc batteries are lighter than their alkaline counterparts. VARTA is one of the world's leading battery manufacturers. Technical Specifications: VARTA TYPE: 2020 IEC Designation: R20 Cell Size: D Diameter: 34.2 mm Height: 61.5 mm Weight: 99.2 g Electrochemical System: Zinc-Carbon (ZN/CA) Voltage: 1.5V