Kirkland Signature zinc air hearing aid batteries in Size 13 configuration, packaged as a 48-pack in convenient individual packages for easy storage and use. These premium quality batteries are mercury-free and made in Germany, operating at 1.45 volts with 200 milliampere hour capacity.

Zinc air batteries use air as a source of power, with a protective tab that ensures freshness until use. To activate, simply remove the tab and wait one minute to allow air to activate the battery ingredients before inserting into your hearing aid. The Size 13 designation (also known as orange tab batteries) is one of the most common hearing aid battery sizes, compatible with most behind-the-ear and in-the-ear hearing aid models.