Duracell Size 312 Hearing Aid Batteries are disposable batteries with a voltage of 1.45V. These batteries are specifically designed for hearing aids and come in a pack of 16. The zinc-air chemical composition ensures a reliable power source for your hearing aid, providing up to 100 mAh of amp hours. Made by Duracell, a trusted brand, these batteries have an expiration date labeled as “BEST BEFORE” and come with a manufacturer warranty of 4 years. Perfect for daily use and ensuring continuous functionality of your hearing aid.