Power One PR44 Size 675 MF 0%Hg Zinc Air Hearing Aid Batteries (60 Pack) | eBay
ZA675B6 GP Hearing Aid Battery, 6 Pack Size 675, Pr44, Ac675 - Gp Typical Battery Lifetimes Run Between 1 and 14 Days 675 Typical Battery Lifetimes Run Between 1 and 14 Days, Voltage: 1.3V : Amazon.com.au: Electronics
300 x Renata Hearing Aid Batteries PR44, Size 675, blue - Swisotech Shop