The pack (1) has a loading electronic unit for loading a rechargeable battery cell. A utilization signal electronic unit produces a utilization signal. Two utilization signal contacts (21) deliver the utilization signal. An enclosure guards against the ing...

The aid has a battery (12) inserted into a battery box (10) along an insertion direction (E). A contact element (14) is arranged in the battery box for electrical contact of the battery. A contact area (18) of the contact element is deflected against sprin...