60 Cochlear Implant Plus Batteries By Power One Size 675 Zinc air Mercury-Free Mercury-free technology for Power one IMPLANT plus cells. Their exceptional resistance capabilities characterize these batteries as ideal for use in cochlear implants. Power one IMPLANT plus MERCURY-FREE cells are also manufactured in the world’s biggest and most up-to-date production site for hearing aid batteries "made in Germany".  Zinc Air MERCURY-FREE PowerOne offer proven zinc air batteries in an alternative, mercury-free version. Power one will thus live up to its claim to be one of the most environmentally friendly hearing aid battery. Sizes 13 and 312 are now wireless approved for modern hearing aids. Power one MERCURY-FREE cells are manufactured in the world’s largest and most up-to-date hearing aid battery plant in Ellwangen, Germany. We provide eco-friendly battery technology, produced under clean room conditions, with an Enhanced Safety & Performance housing coating. Power one MERCURY-FREE cells are manufactured using only high-grade and refined raw materials. Our energy management system is certified in accordance with ISO 50001. Power one MERCURY-FREE means, for you, hearing aid energy with premium performance and durability – of course with the patented stable high level of voltage that Power one provides.