Amazon.com: Beidongli LR44 Batteries AG13 357 high Capacity 1.5V Button Coin Cell Battery (20pack) : Health & Household
Amazon.com: AmVolt- Pack of 15 LR44 Batteries AG13A76 Battery, Premium Alkaline Ultra Power Non Rechargeable Button Battery, 1.5 Volt Small Batteries for Remotes Games Controllers Toys & Electronic Devices : Health & Household
Maxell Batteries LR44 (A76, AG13) Alkaline Button Size Battery, On Tea – Batteries and Butter
File:LR44 Button Cell Battery IEC Standard Version.jpg - Wikimedia Commons