ZA312 GP zinc-air hearing aid battery (PR41), 1.45 V, pack of 6 Looking for an excellent button-cell battery for your hearing aid? GP has the perfect button-cell battery to fit in any hearing aid. The colour for type 312 button-cell batteries is brown. A zinc-air button-cell battery for hearing aids with a diameter of 7.9 mm and a height of 3.6 mm. GP batteries are known for their longevity. With normal daily use (12 hours), the battery will last approx. 11 days (depending on the type of hearing aid). Type 312 is a 1.45-V battery. The batteries are not rechargeable. The handy blister pack contains six button-cell batteries. If you don't want to go out with discharged batteries, you can always have one or more sets to hand. Extremely reliable, durable and safe. GP button-cell batteries are permanent and resist any weather: extreme cold as well as high heat. To prevent the batteries from leaking, remove empty batteries immediately. https://elecena.pl/product/25623826/gppbzz31f015-hearing-aid-battery-zinc-air-7-90-x-3-60-mm-aid-312-pack-of-6 2024-03-23 https://elecena.pl/product/25623826/gppbzz31f015-hearing-aid-battery-zinc-air-7-90-x-3-60-mm-aid-312-pack-of-6 2025-09-12