Patent ID: 6989207

Claim:
A fuel cell system, comprising: an enclosure housing a fuel cell stack, a power conditioning circuit, and a control circuit; wherein the power conditioning circuit has a first input connector electrically coupled to the fuel cell stack, wherein the power conditioning circuit is adapted to convert a direct current flow from the fuel cell stack to a conditioned alternating current flow having a predetermined voltage, wherein the conditioned current flow is provided to an outlet connector of the power conditioning circuit located along a first portion of the enclosure, wherein the power conditioning circuit further includes a second input connector located along a second portion of the enclosure, the second input connector being adapted to receive an external current flow; and wherein the control circuit is coupled to the second input connector, wherein the control circuit is adapted to operate the power conditioning circuit in a first mode when an external current flow is received by the second input connector, and wherein the control circuit is adapted to operate the power conditioning circuit in a second mode when an external current flow is not received by the second input connector.