Kirkland Signature Premium Quality Hearing Aid Batteries in Size 13, providing long-lasting power for hearing aids. These zinc air batteries come in a 48-pack with convenient individual packaging for freshness and easy handling. Each battery is 1.45 volts and mercury-free, manufactured in Germany for premium quality. The batteries feature a protective tab seal that ensures freshness until activation—simply remove the tab and wait one minute to allow air to activate the ingredients before inserting into your hearing aid. Zinc air technology uses ambient air as the power source, providing reliable performance with a capacity of 200 milliampere hours. The batteries are portable, easy to use, and designed specifically for hearing aid applications.