GutAlkaLi LR44 1.5V Alkaline Button Coin Cell Batteries - Pack of 10 for Many Small Electronics, Including Watches, Calculators, and Toys - Compatible with AG13, 357, 303, SR44, and A76 Battery.: Amazon.co.uk:
Amazon.co.jp: Suncom LR44 Alkaline Button Battery Pack x 2 Sheets (Total of 20) : Electronics
Amazon.com: Voniko AG13 LR44 Batteries 20 Pack—[Ultra Power] Premium Alkaline 1.5 Volt LR44 Button Cell Battery for Toys & Electronic Devices : Health & Household