Energizer 2016 Lithium Coin Batteries deliver dependable 3V power for medical devices, fitness trackers, keyless entry systems, and compact electronics. Built with advanced lithium technology, these batteries maintain consistent performance across extreme temperatures from -22°F to 140°F, making them reliable for both indoor and outdoor applications. With an impressive 10-year shelf life, they're always ready when you need them. Choose Energizer for the long-lasting, high-performance energy your essential devices demand.