Free Shipping on US Orders Over $50 & 30-Day Returns
4.9from 306 reviews

Shop by size

Size 675 Hearing Aid Batteries

Size 675 is the blue-tab cell — the largest hearing aid battery and the longest-lasting. It powers high-power behind-the-ear aids and many cochlear implant sound processors. If you wear a power BTE, this is almost certainly your size.

Size 675 batteries we stock

Frequently asked questions

What color tab is a size 675 battery?

Blue. Size 675 also appears as PR44 or A675 on packaging. The blue tab is the quickest way to confirm you have the right cell.

How long does a size 675 hearing aid battery last?

Commonly nine to twenty days in a standard power behind-the-ear aid. Cochlear implant processors draw considerably more current, so expect a much shorter life in those — often only a few days.

Are cochlear implant batteries the same as 675?

Many processors take a standard size 675 zinc-air cell, but some require a high-power 675 variant specifically rated for implants. Check your processor's manual before ordering if you are unsure.