60 cells x Power One 312 brown Size orange Hearing Aid batteries PR41 Zinc Air 10Pack - AliExpress
PowerOne Evolution Hearing Aid Batteries - Zinc Air Hearing Aid Batteries with Improved Battery Life - 60 Batteries - Size 10, 13, 312 & 675 - with Liberty Hearing Aid Battery Keychain | LIBERTY Health Supply
Power one Size 312, PR41, P312 Hearing Aid Batteries (60 Batteries) + Keychain | eBay