Exell Battery Lithium CR2450 Coin Batteries (5-Pack) in the Coin & Button Batteries department at Lowes.com
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 (
CR2450 vs. CR2032: Are they interchangeable?
Energizer CR2450 Coin Cell Battery - Pack of 2
CR2450
Lithium CR2450 Battery - Brands, Equivalents and Replacements