Frequently Asked Questions (FAQs)
Mercury Free Hearing Aid Batteries
Answering on the growing patient demands for environmentally friendly products, Rayovac introduces the Extra Mercury Free AVA (Advance Voltage Agent). This revolutionary hearing aid battery delivers the power, performance and consistency that you have come to expect from Rayovac products. Through years of research and development, Rayovac’s technical experts have overcome the challenges in removing Mercury, which is used in many other zinc air hearing aid batteries. Extra Mercury Free AVA far exceeds the competition in performance and consistency, giving you and your patients an earth-friendly choice without compromising performance. On average, Extra Mercury Free delivers up to 4 days more battery life than comeptition! 30% longer than Duracell Mercury Free. 20% longer than Energizer Mercury Free. The average content of mercury in zinc-air hearing aid batteries is less than 1 per cent. This is significantly less than the early generations of mercury-oxide hearing aid batteries which had a mercury content of up to 50 percent. Mercury is used as a stabiliser which helps give batteries a longer shelf life. Mercury is a naturally occuring liquid metal which, in large amounts, is hazardous to our planet and to us. If we all work together to remove mercury from hearing aid batteries globally we could save over 700 kg of mercury being disposed of every year. We will start to see mercury-free batteries become a standard offering from mid 2011 due to the EU ban on products containing Mercury. The US ban comes into effect in mid 2012. Manufacturers of zinc-air hearing aid batteries are working hard to remove mercury from their batteries without compromising the performance of the battery or hearing device - this is proving to be a formidable challenge. Some of the earlier Mercury Free batteries delivered less than satisfactory performance compared to batteries containing mercury. As research evolves, mercury-free batteries will get better and better. The performance early generations of zinc-air batteries was significanly less than today's offerings. Considerable research and development has lead to better and better zinc-air batteries.
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