CR2430 Sony or GP 3 volt Lithium Coin Cell. Single Battery.

This three-volt lithium coin battery is perfect for watches, fitness or healthcare devices, and other electronics. 20mm diameter and 3.2mm height. Three-volt lithium coin batteries perfect for watches, fitness or healthcare devices, and other electronics. This battery may last the lifetime of your equipment. Why Lithium? The most significant advantages of lithium batteries is long shelf life at room temperature, good low temperature operation, high operating voltage and excellent leakage resistance. In many cases this battery can become a permanent component for the lifetime of your equipment. Lithium advantages: High energy density High voltage Long shelf life Wide temperature range for operation and storage Leak resistant Suitable for pulse discharge Ideal Standby power source