Rayovac 46730071 Energizer 1216 Battery Lithium Coin 3.0 Volt Get Reliable Performance From Energizer's 1216 Coin Lithium Battery. It's Used In Many Common devices. Reliable Performance In Heart-Rate monitors, keyless Entry, Glucose monitors, toys & games. Coin Lithium Batteries Are Not Interchangeable. Both Diameter And Thickness Can Vary based On The Cell Designation. Replacement For: Br1216, Cr1216, DL1216B, ECR1216BP Nominal Voltage: 3.0 Volts Rated Capacity mAh: 25 Chemical Composition: Lithium/Manganese Rechargeable: No