Exell Battery Alkaline L1154 Button Batteries (10-Pack) in the Coin & Button Batteries department at Lowes.com
Amazon.com: Tenergy 1.5 Volt Battery Button Cell LR41, ag3 Batteries Equivalent, Ideal for thermometers, Watches, Laser Pointers, Small Toys, Portable Electronics, and More - 20 Pack : Health & Household
Amazon.com: Energizer LR44 1.5V Button Cell Battery x 6 Batteries : Health & Household