I've weighed the "Nuclear Football," it's only 22 lbs. Still needs a few adjustments. I should move the check valve from the end of the whip to a point inside the box before the gauge for better readings. Also going to add an SAE 2-pin bulkhead connector for charging the battery with a Battery Tender that handles lithium. Considering adding a smallish (300W) power inverter to run low-power 120V stuff.