PowerOne Accu plus NiMH Rechargeable Hearing Aid Battery P10, 2 batteries
Power One ACCU Plus Size 312 p312 Ni-MH Rechargeable Hearing Aid Batteries | eBay
Amazon.com: ZPower 312 Rechargeable Hearing Aid Battery - ZPower Battery Silver-Zinc XR41 (1/Pack - Size 312) - Compatible with Hearing Aids Using ZPower Rechargeable Systems : Health & Household
PowerOne ACCU Plus Size 312 Rechargeable Hearing Aid Batteries - Size 312 Hearing Aid Batteries - Includes Hearing Aid Pouch and Liberty Hearing Aid Battery Keychain : Health & Household - Amazon.com