Energizer Batteries Lithium 1620 1 Pack [Pack of 12]The Energizer Lithium 1620 (CR1620) Battery delivers reliable, long lasting performance for devices that require stable, high density power. Ideal for heart rate monitors, keyless entry systems, toys, games, watches, calculators, fitness trackers, and other small electronics, this premium 3V lithium coin cell ensures consistent energy output and dependable operation. Designed with leak resistant construction and child resistant packaging, this battery