Kirkland Signature Hearing Aid Battery Size 312 is a premium zinc air battery designed for use in a wide range of hearing aids, including in-the-ear (ITE), behind-the-ear (BTE), and receiver-in-canal (RIC/RITE) models. Each box contains 48 batteries, offering exceptional value for regular hearing aid users.

These batteries deliver a consistent 1.45V output voltage and are completely mercury-free, meeting modern environmental and safety standards. The size 312 format (also known as PR41) is color-coded with a brown tab, which must be removed to activate the zinc air chemistry and begin powering the battery. Batteries should be used within a few minutes of tab removal for optimal performance.

Kirkland Signature batteries are manufactured to premium quality standards and feature a factory-sealed design to preserve freshness and extend shelf life when stored unused in original packaging. Each battery is designed for long-lasting, reliable performance to keep hearing aids powered throughout daily activities.