RS Pro by Allied - 7757233 - Coin Cell Battery LR44 Alkaline 1.5V 158mAh Non-Rechargeable Standard Terminal - Allied Electronics & Automation, part of RS Group
AG13 357 A76 303 SR44 1.5V Button Cell Batteries LR44 for Digital Thermometer Decorations light10pcs - Walmart.com
Set of 6 Grundig AG13/LR44 batteries (button cells, 1.55V) - Wood, Tools & Deco
Amazon.com: PKCELL 5 Count AG13 1.5V Battery LR44 Button Cell for Digital Thermometer : Health & Household