This controller is generally used in rv solar power systems using 12 volt solar panels wired in parallel.
Truck camper solar panels.
At 11 percent portable solar panels remain an important part of the truck camper marketplace.
Unlike my previous solar articles i am not going to describe how to calculate battery and solar array sizes.
This shows that the overwhelming majority of truck campers either have or want a solar panel system.
With truck campers space is at a premium and you need subsystems specially designed for small roofs and tight storage compartments.
Last spring we attempted an impromptu experiment to see how long we could camp without 110 volt shore power.
Truck camper magazine installs a 150 watt zamp solar panel system on their project camper and takes a big step towards cutting the cord and camping off the grid.
Portable solar panels can be purchased with or without a charge controller meaning it can tie in with your existing roof top solar power system or it can operate independently and in parallel with your main system.
Strengths of the pwm charge controller design include the fact that it is built on a time tested and proven technology is inexpensive a single unit capable of handling 25 amps can be purchased for less than 100 and is durable.
The battery of choice for most rvers is the 12 volt deep cycle rv marine battery and your truck camper will probably not have the space or weight capacity for more than one.