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.PTDENGCR1620