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 - 40 Pack : Health & Household
Amazon.co.jp: LR41 Button Batteries, 1.5 V, Compatible with AG3/392A/CX4/LR41W, Compatible with Various Small Electronics, Alkaline Button Batteries, Perfect for Bulk Purchase, FMTLR4120S : Electronics
Amazon.co.jp: TUO High Performance Alkaline Button Battery LR41, 10P (compatible AG3) : Electronics
Amazon.co.jp: LR41 Button Battery Set of 10 for Cameras, Mini Games, Thermometers, etc : Electronics