Disclosed herein, among other things, are methods and apparatus for detecting battery chemistry or battery type and reconfiguring a hearing assistance device based on the detected battery. One aspect of the present subject matter relates to a method of ope...

A hearing aid includes a magnetostrictive electroactive (ME) sensor that generates an electrical signal in response to a magnetic field or a mechanical pressure. In various embodiments, the ME sensor is used for cordless charging of a rechargeable battery ...

Disclosed herein, among other things, are apparatus and methods for detecting and switching battery polarity in a battery charger. In various embodiments, a method includes grounding a first terminal of a battery inserted in a charger and sensing a bipolar...