Kirkland Signature Hearing Aid Batteries in Size 10 deliver reliable, long-lasting power for a wide range of hearing aids. These zinc air batteries operate at 1.45 volts and are completely mercury free, making them a safer and more environmentally responsible choice. Size 10 is the smallest standard hearing aid battery format, identified by a yellow pull tab, and is commonly used in completely-in-canal (CIC), in-the-canal (ITC), and mini behind-the-ear (mini BTE) hearing aids.

Each battery is individually sealed to lock in freshness and maximize shelf life, which extends well over two years from the date of manufacture. The 48-count bulk pack provides an economical supply lasting approximately six to twelve months depending on daily wear time. Users consistently report performance on par with premium name-brand batteries at a fraction of the cost.

Kirkland Signature batteries are manufactured in Germany and backed by Costco's quality standards. The bulk packaging makes them a practical choice for regular hearing aid wearers who want a dependable supply at home.