Patent ID: 9570929
Date: 2017-02-14
CPC Classifications: H01M,H02H,H02J,Y02E

Claim:
1. An apparatus comprising: a battery unit, defining a longitudinal axis and having a housing; and an electronics unit, defining a longitudinal axis and having a housing, wherein: said battery unit has a battery with a first and a second pole; said battery unit has at least a first, at least a second and at least a third electrical contact; said first contact and said third contact are connected with said first pole; said second contact is connected with said second pole; said electronics unit has an input circuit with at least a first and at least a second electrical countercontact for receiving electrical energy from said battery unit essentially via said first and said second contacts or essentially via said second and third contacts of said battery unit; said input circuit has, furthermore, at least a third electrical countercontact; said battery unit is so connectable with said input circuit that electrical energy from said battery of said battery unit is transmittable from said battery unit to said electronics unit essentially via said first and said second contacts and said first and said second countercontacts or essentially via said second and said third contacts and said second and said third countercontacts; said battery unit is so connectable with said input circuitry of said electronic unit that in a first installed position only said first contact is connected with said first countercontact and said second contact is connected with said second countercontact, and that in a second installed position only said second contact is connected with said second countercontact and said third contact is connected with said third countercontact; and said battery unit is rotated around its longitudinal axis so that said housing of said battery unit can engage with a correspondingly formed housing of said electronics unit in the second installed position.