expired 082025 The Energizer Size 10 Hearing Aid Batteries are a 32-pack of zinc-air batteries with a 1.45V voltage. Manufactured in the United States, these coin cell/button batteries are ideal for hearing aids and other medical devices. With an expiration date of 08/25, these sealed batteries provide reliable power for extended periods, making them a convenient and essential aid for those in need of consistent assistance with daily living activities.