Patent ID: 8884773

Claim:
An electrical cord set for electrically connecting a power supply to a vehicle, comprising: a power supply connector including a plurality of electrical contacts configured to engage and thereby electrically connect the power supply to the power supply connector; a vehicle connector including a plurality of electrical contacts configured to engage and thereby electrically connect the vehicle to the vehicle connector; a test module electrically connecting the power supply connector and the vehicle connector, the test module having an electrical circuit, and when the power supply connector is connected to the power supply the electrical circuit performs at least one of the tests selected from the following group: tests a voltage of the power supply and provides an indication if the voltage is outside of a normal operating range; tests a polarity of the power supply and provides an indication if the polarity of the power supply is reversed; and tests for grounding of the power supply and provides an indication if grounding is not present, wherein the vehicle connector includes: a housing supporting a plurality of electrical contacts configured to engage and thereby electrically connect the vehicle power receptacle to the vehicle connector; at least two connection jaws, each of the connection jaws being pivotally connected to the housing to move between a closed position and an open position, in the closed position the jaws being engagable with the vehicle power receptacle to secure the vehicle connector to the vehicle power receptacle, and in the open position the jaws being disengagable with the vehicle power receptacle, wherein each of the connection jaws includes a ribbed internal surface configured to engage an external threaded surface of a power receptacle.