Lithium coin battery delivers reliable performance in devices like heart-rate monitors, keyless entry, glucose monitors, toys and games. It holds power for 8 years in storage. The 3-volt battery is the replacement for 5004LC, BR2032, DL2032, ECR2032 and ST-T15. Coin lithium batteries are not interchangeable. Both the diameter and thickness can vary based on the cell designation. While some device battery compartments may be sized in a way that different battery types can fit in the compartment, the capacities will vary by size so you should use the cell designation specified by the manufacturer of your device.