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. Quantity (72) 1 PK Ansi Neda 5034LC/IEC-CR1216 Nominal Voltage 3.0 Volts Unit Of Measure case Rated Capacity Mah 25 Chemical Composition Lithium/Manganese Dioxide