The  Zinc Air Hearing Aid Battery is mercury-free and designed to be both durable and environmentally friendly. These batteries have a high energy density, exhibiting a nearly flat drain curve, and are made using high-grade and refined raw materials. Benefits include a long shelf life, stability, and high cell voltage. 

Each order will contain 42 hearing aid batteries in Childproof packaging.

Please Note: Due to supply constraints from the manufacturer, the brand may vary between Rayovac, Ultima or PowerOne.

Please note: The manufacturer of the zinc air batteries suggests that once you take the tab off of the battery, allow 2 – 5 minutes before closing the battery door on your hearing aid for maximum usage.

How They Work: Zinc-air batteries use oxygen to produce electrochemical energy. Oxygen becomes the cathode reactant, and is diffused directly into the battery. The air cathode uses an aqueous alkaline electrolyte to catalytically promote the reaction of oxygen, but is not depleted or transformed at discharge. The cathode is compact, but has an almost unlimited capacity, and achieves high energy densities due to the additional volume available for the zinc anode.