Yes, I have done this, using a cigarette lighter-type plug and receptacle available from Amazon, with the receptacle hard mounted on the camper. I have 2×185 watt panels that came with my NL 10-2, but sometimes I park it in a shed with no electricity and the panels on the roof don’t get any light. So, I bought a 50 watt panel and use it as a trickle charger. The solar panel is connected to my solar panel controller in the camper. Works good. Same concept could be used for more or bigger remote panels.
Ken Ehlers
NL 10-2LE
F450 4x Dually