I ran a #4 wire 2' long from the battery to the 50 amp CB, I ran a #6 wire 15' long from the CB to the switch. At start up I have 13.78 volt at the motor running, non stop by the third tire it droped to 13.7 volts. aired up all 4 tires and the wire was still cool to the touch. The Puma was warm but not to hot.
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The system is tank less and free flow with a Jaco Lightning S-Series Air chuck, I utilized the copper pipe with the cooling Finns and the blow off valve.
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And then plumed to the rear bumper.
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Theirs no pressure Gauge in the system. Just hook the chuck to the first tire start the Puma wait 1 minute 45 seconds, pull it go to the next tire do the same tell and 4 tires are done turn the puma off. All 4 39s aired up from 12 PSI to 25 PSI in under 8 minute. not bad