The Energizer CR1620 is a 3 Volt Lithium coin cell from Energizer. It is 16mm in diameter and 2.0mm thick, weighs 1.3g and has a capacity of 85.0mAh Reliable, dependable power. Used in heart rate monitors, keyless entry, glucose monitors, toys and games. Replaces 1620, CR1620, DL1620, ECR1620, L08.