Patent ID: 8759991

Claim:
An electro-mechanical device comprising: an internal combustion engine supported on a manually movable frame; a battery receptacle associated with the manually movable frame, the battery receptacle comprising a receptacle terminal block coupled to the internal combustion engine via a coupling mechanism, the receptacle terminal block being associated with a distal end of a tower receptacle and comprising a positive receptacle contact and a negative receptacle contact; a battery pack for a cordless power tool having a battery terminal block associated with a distal end of a battery tower, the battery terminal block comprising a positive battery contact located and configured to make electrical contact with the positive receptacle contact, and a negative battery contact located and configured to make contact with the negative receptacle contact when the battery pack is inserted into the battery receptacle; the battery receptacle further comprising a retention clip biased toward a retention position in which the retention clip continuously exerts a biasing force on the battery pack to urge the battery tower into the tower receptacle to retain the positive and negative battery contacts in electrical communication with the corresponding positive and negative receptacle contacts, and the retention clip being manually movable into an open position in which the battery tower may be removed or inserted into the tower receptacle; and wherein the coupling mechanism is one of: a starting circuit electrically coupling the positive and negative contacts to a starting device during a starting operation, the starting device being coupled to the internal combustion engine and being configured to start the internal combustion engine using electrical power provided by the cordless power tool battery pack during the starting operation; a charging circuit electrically coupling the positive and negative contacts to a charging device during a charging operation, the charging device being coupled to the internal combustion engine and being configured to charge the cordless power tool battery pack during the charging operation; or both.