This version holds the brown (312) batteries. this battery holder will allow you to carry 4 spare batteries.
Pastoralist Hearing Aid Battery Case, 5pcs Plastic Hearing Aid Battery Storage Boxes with Keychain, Pocket Size Battery Holder, Portable Travel Case for Hearing Aid Battery, hearing aid battery case
Rotatable Size 312 Hearing Aid Battery Case,Slim Portable Hearing Aid Batteries Case for 8x Size312 A312 P312 312A PR41 P13 P10 LR41 Battery Carry Holder with Keychain(NO Batteries)
Hearing Aid Battery Caddy, Hearing Aid Amplifier Battery Caddy Reusable Plastic Button Storage Case Holder Box 2pcs Nice
Hearing Aid Battery Case 5pcs Plastic Hearing Aid Battery Storage Boxes with Keychain Pocket Size Holder Portable Travel Case Practical for
5pcs Plastic Hearing Aid Battery Storage Boxes with Keychain, Pocket Size Portable Travel Case, Small Battery Holder for Hearing Aid Batteries, Easy Carry
Hearing Aid Battery Case, 5pcs Plastic Storage Boxes with Keychain, Pocket Size Holder, Portable Travel Case for Hearing Aid Battery
