Based on this product's specifications, here are some alternatives and similar models
GP ZA13 Zinc Air Button Cell Batteries 1.4V, 6-Pack
Summary description:
GP ZA13 zinc-air button cell batteries provide reliable 1.4V power for hearing aids and medical devices. This 6-pack ensures long-lasting performance and consistent energy output for sensitive electronic equipment. Designed for stability and durability, these batteries are an essential power solution for daily use in compatible hearing aid models.