GP Alkaline LR44 (AG13) Batteries x 10 - GiftyGadgety.com
CCCP AG13 LR44 Battery (Pack of 1)
GutAlkaLi 20-Pack LR44 Batteries - 1.5V Button Cell Batteries for Small Electronics with Stable Voltage and Long Lifespan. Ideal for Watches, Hearing Aids, Glucometers, Key Fobs, and More.: Amazon.co.uk: Electronics & Photo