Renata Size 312 Zinc Air 1.45V Hearing Aid Battery - Designed in Switzerland (60 Batteries) : Amazon.de: Health & Personal Care
Rayovac NSB 303/357-1ZMD Other Battery 6BOX | eBay
Buy Duracell 395/399 Silver Oxide Button Battery, 1 Count Pack, 395/399 1.5 Volt Battery, Long-Lasting for Watches, Medical Devices, Calculators, and More | Fado168
Renata Hearing aid 13 Size - 6 Pack 🔋 BatteryDivision