The Rayovac Hearing Aid Batteries in size 13 come in a pack of 6, each battery being a zinc-air coin cell/button type. Manufactured in the United Kingdom, these batteries have an expiry date of February 2027. Designed for daily use in hearing aids, these batteries provide reliable power to ensure clear and consistent sound transmission. With the trusted Rayovac brand, these batteries offer a long-lasting solution for individuals seeking improved mobility and communication. Says May 2025 not sure if its production date or expiry. Hence the cheap price of 2 pounds. Has stickers at the back of each battery so not used.
