Powerone Hearing Aid size 312, P312 Genuine Batteries, Multiple Lot 12-3000 Powerone, Made in Germany, are among the world’s top-selling batteries. The reasons for their extraordinary success: they combine the highest quality and reliability, an extremely long life and maximum comfortExpiry 2026-12Note: We carry fresh stocks. All our batteries have a shelf life (expiration date) of 2 – 3 years in the future! PowerOne Hearing Aid BatteriesMercury FreeSize: 312Voltage: 1.4 Volts Capacity: 180 mAh Chemistry: Zinc Air Environment friendly Please Visit our store for your other needs 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.