30 Pc Panasonic PR 675 Hearing Aid Batteries Zinc Air 1.4V Battery No MercuryPanasonic PR675 batteries are designed for use with BTE (behind the ear) hearing aids. Utilizing a zinc air chemistry, this battery generates it's 1.4 volts of power by using the oxygen in the air giving it a 9-20 day lifespan in your hearing aid. The Panasonic PR675 is a size 675 and has a 3 year shelf life, which is great when buying back-ups for your hearing aid because it ensures they're ready to go at a moment's notice.Features:Comfortable, light and providing a steady level of powerNo mercury addedReliable power in various temperature conditionsIdeal for new generation digital hearing aidsSpecifications:Brand: PanasonicBattery Size: 675Chemistry: Zinc AirVoltage: 1.4VCapacity: 605mAhShelf Life: 3 YearsDiameter: 0.45" (11.6mm)Height: 0.21" (5.4mm)Expires: 6/2023