The present invention relates to a housing of a hearing aid or hearing device respectively with a base plate, a shell connected with the base plate and an electronic module, whereby the electronic module consists at least one of a clamping device to hold the battery consisting of a cap pivotable over an axis. The axis thereby consists of two bushes axially relocatable beyond each end and insertable into accordingly provided openings or bores respectively of the base plate. The axis will thereby be connected with the base plate, and the forces acting onto the axis will be transferred to the base plate and not into the electronic module. Furthermore, the electronic module will be locked within the base plate by the bushes.