rayovac hearing aid batteries size 312

Product listings show Rayovac size 312 batteries at about 1.4–1.45 volts with a capacity of 72 mAh per cell.

These size 312 batteries are offered in multiple pack sizes, including 6‑pack, 12‑pack, and 24‑pack options.

They are zinc‑air cells (listed as A312) and are single‑use — not rechargeable.

Product details state these size 312 batteries stay fresh for up to four years.

They are marketed for hearing aids and for high‑use features such as streaming video, audio and phone calls.

They are identified as Size 312 or A312 in the product details and bullet descriptions.