Kirkland Signature Size 312 hearing aid batteries use zinc air technology to deliver reliable, consistent power for a wide range of hearing aids. Completely mercury-free, these batteries meet the same high-performance standards as premium competitors while being a more environmentally responsible option.

Each battery provides 1.45 volts of power and is individually packaged to preserve freshness and shelf life until needed. The size 312 format — identified by its brown pull tab — is compatible with many behind-the-ear (BTE), receiver-in-canal (RIC), and in-the-ear (ITE) hearing aid models. For best results, remove the pull tab and allow the battery to rest for one to three minutes before inserting, which allows maximum air exposure to activate the zinc air cell.

Manufactured in Germany, this 48-pack offers significant value for everyday hearing aid users who require a dependable, long-lasting supply of fresh batteries.