HEARING INSTRUMENT CHARGER DEVICE AND SYSTEM, AND A METHOD OF MANUFACTURING A HOLDER THEREFOR

A method of manufacturing a charger insert part of a hearing instrument charger device comprising a charger casing having a receiving portion, and a first charger element, includes: obtaining a first virtual model of the rechargeable hearing instrument shaped or to be shaped to at least partly conform to a shape of a portion of an ear canal of a user, wherein the first virtual model comprises an allocated position for a second charger element; obtaining a second virtual model of the charger insert part for manufacturing the charger insert part, such that when the charger insert part is placed in the receiving portion, the first charger element will be in a relation with the second charger element; and shaping, by a manufacturing process, the charger insert part based on the second virtual model, the second virtual model being based on the first virtual model.