Amazon.com: CR2450 Batteries 3V Lithium Cell - 3 Volt CR 2450 Coin Button Lithium Battery Replacement for BMW Car Key Fob Remote Control Flameless LED Candles Garage Door Opener Sensor Welding Helmet (
Amazon.com: Panasonic CR2450 Battery, Lithium, 3 Volt (Nom.), 620 mA, Coin Cell : Health & Household
Amazon.com: Duracell 2450 3V Lithium Battery, 1 Count Pack, Lithium Coin Battery for Medical and Fitness Devices, Watches, and more, CR Lithium 3 Volt Cell : Health & Household