![]() Battery size and capacityThe primary goal with a rechargeable battery capacity is to achieve, at minimum, a full day's use. The commonly used zinc air batteries of course have a higher capacity than rechargeable batteries, as can be seen in Fig 1. This comparison, however, is not appropriate for the rechargeable battery, which needs to power a hearing instrument for a full day and then charge overnight.
![]() Corrosion resistant battery coatingRechargeable batteries need to be environmentally safe and corrosion resistant.Traditional zinc air batteries are expected to last for approximately one week. With this short lifespan, there is little risk for corrosion. However, a rechargeable battery can be expected to last well over one year. This duration puts the rechargeable battery at a much higher risk for corrosion. Siemens applies a clear, polymer film to the rechargeable batteries to inhibit corrosion The coating is non-tacky and non-conductive. It contains corrosion inhibitors to help protect the battery. In conjunction with the moisture resistant nature of Siemens eCharger rechargeable hearing aids, the hearing instrument wearer can feel confident in the longevity of the battery performance. ![]() SummaryWith current trends in technology and modern designs in hearing instruments, the time has finally come for a rechargeable hearing aids system that meets the needs of hearing instrument wearers.Research indicates that a functional and practical rechargeable system must have long-lasting batteries that can be easily and comfortably recharged, thus providing the hearing instrument wearer a secure and reliable hearing system. With Siemens rechargeable hearing aids, these demands for customer satisfaction are met and even surpassed with extra convenience and flexibility.
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