This version holds the brown (312) batteries. this battery holder will allow you to carry 4 spare batteries.
6 Compartment Hearing Aid Battery Holder Keyring, PR70 PR41 PR48 Battery Case,
Hearing Aid Battery Holder Keyring Case 6 Compartments PR70 10 PR41 312 PR48
Hearing Aid Battery Holder Keyring Case 6 Compartments PR41 PR48 PR70 Secure
Hearing Aid Battery Holder Keyring Case 6 Compartments PR70 PR41 PR48
Hearing Aid Battery Holder Case 6 Compartments Keyring 36x85x16mm for Types 10
Hearing Aid Battery Holder Case for 10 13 312 PR41 PR48 PR70, 6 Compartments,
