mod 08.    Portable Power Supply

This build is very similar to an ‘instructable’ that used a plastic ammo box, a small 12 V battery, a charge controller and a 4 in 1 charger / socket panel. I pretty well just built it as described in the link, however my parts list differed a bit. Wiring is simpler than it might seem. Quickly recharged 2 ways. Perhaps not really a mod to the camper per se, as it is portable. Great power supply for the campsite picnic table or camp fire. The pictures are mine. And the light bulb, it's a12 V rv bulb.

 

Although not quite identical to mine, construction details are here.

Approx. cost $100