Each Battery 7.9mm x 3.6mm.
Rayovac size 312 hearing aid batteries 80/40 cells total NEW UK Made Long Life
Rayovac Extra Advanced size 312 hearing aid batteries 80/40 cells in total BROWN
Rayovac Size 312 Hearing Aid Batteries PR41 DA312 8-80 Batteries
Rayovac size 10 PR70 PR230H Extra Hearing Aid Batteries 80 or 40 in Total YELLOW
Rayovac size 312 hearing aid batteries 60 cells in total NEW
