I have LED lights
in my 1983 Scamp
. To keep the battery
charged I bought a Coleman 18 watt solar panel
kit. It comes with a charge controller.
I mounted the charge controller on a metal post screwed to the wood base that holds the battery
. It is held with a zip-tie and protected from rain by a cover made from a trimmed plastic bottle. This keeps rain off but lets me see the indicator lights
Using ¾ inch plastic pipe, I made a frame to support the solar panel
. It has a leg behind to prop it up to the proper angle. Use 1 90 degree elbow and a pair of tees. I shaved the ends of the pipes the tee turns on so it would turn easier. To improve rigidity there is a wood filler in the pipes across the tee. After it was assembled to the solar panel
. I drilled a hole in the tee extending off the side of the panel. Make it as close to vertical as you can, just off the edge of the panel. Whittle out a straight stick 6 or 8 inches long to fit in that hole.
With the stick pointing up away from the panel, the stick will throw a shadow. Adjust the panel so that the shadow falls parallel with the edge of the panel and as short as you can make it. In this position, the sun is hitting the solar
panel directly at 90 degrees for maximum power output. Every hour or so, you can readjust the shadow as the sun moves.