Energizer AZ10 Hearing Aid Batteries 1.4 Volt, pack of 4 SKU: 185164 MODEL: AZ10DPA4 Error. try again later You've successfully joined the club $ 6 .28 pack Mitre 10 MAvailable at Mitre 10 MEGA stores. Variants You'll love hearing this: Energizer has its longest-lasting hearing aid batteries ever. Hearing Aid Battery AZ10. Features and benefits PowerSeal Technology protects your devices against leakage. These batteries deliver consistent sound quality across their life span for a better hearing experience. Zinc Air.