Product Name: VARTA CR1220 Lithium Coin Cell Battery Technology: Lithium Voltage: 3 V Dimensions: 12 mm diameter × 2.0 mm height Performance: Reliable power source with long life and strong energy output Recommended Applications: Toys, remote controls, car keys, electronic clocks, pocket calculators, sporting equipment, medical devices, bathroom and kitchen scales, sensors, and more Also Known As: DL1220, BR1220