Exell Battery Lithium CR2430 Coin Batteries (5-Pack) in the Coin & Button Batteries department at Lowes.com
Renata CR2430 Lithium Coin Cell 3V Battery, Bulk
Amazon.com: Duracell 2430 3V Lithium Battery, 1 Count Pack, Lithium Coin Battery for Medical and Fitness Devices, Watches, and more, CR Lithium 3 Volt Cell : Health & Household