Each Battery 7.9mm x 3.6mm.
Rayovac size 312 hearing aid batteries (10 packs of 6 cells, 60 cells in total)
RAYOVAC SIZE: 312-HEARING AID BATTERIES (1 Packs Of 8 Batteries).
RAYOVAC SIZE 312 HEARING AID BATTERIES (5 PACKS OF 6 = 30 CELLS) BROWN TAB
2 X RAYOVAC SIZE: 312-HEARING AID BATTERIES (2 Packs Of 8 Batteries). Total: 16
8 X RAYOVAC SIZE: 312-HEARING AID BATTERIES (1 Pack Of 8 Batteries).
