Used in heart rate monitors, keyless entry, glucose monitors, toys & games Reliable, dependable power Performs in extreme temperatures from -22ºF ~ 140ºF Cell size: 2032 Volt: 3 For our 20mm lithium coin cell batteries, you might notice you now need a scissors to open the package. This is because Energizer is proactively addressing the threat of battery ingestion amongst children. Energizer leads the industry by being the first battery manufacturer to introduce coin lithium battery packaging that voluntarily meets the strict guidelines set by the Consumer Product Safety Commission (CPSC) for child resistance. We're proud to help keep kids safe! Product Specs: Reliable, dependable power; Used in heart rate monitors, keyless entry, glucose monitors, toys & games; Performs in extreme temperatures from -22ºF ~ 140ºF; Holds power for 8 years when not in use; Cell size: 2032; IEC: CR2032; Volt: 3; Replacement for: 5004LC, BR2032, DL2032, ECR2032, ST-T15. Important: 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. Energizer recommends that you use the cell designation specified by the manufacturer of your device or identified in the list provided above. 2-Pack.