Thanks for both for the observation -- one reason for this is that I have an older car and don't necessarily want to be chained to it or sell with the additional wiring. The other is that I may not be using the 50X-1 on a daily basis from the car and would want to have it "portable" so to speak. Goal Zero and similar larger battery units I think would provide the power needed. Has anyone ever set up a 50X-1 or similar transceiver using the DC connector with a Goal Zero or similar battery?