Please post once and stop cross posting as you advertise for free here.
Laugh if you like, but it really can be a thing to tour with an ea-bike, a trailer, and a magnum set of solar panels. I've seen a couple of trike riders do it. I have respect and love the idea, even if I presently choose to ride and tour under my own power. I can also think of a few desert back country rides I'd love to make, but which are simply unreasonable to contemplate without vehicular support in the form of a 4x4.Part of proper care to make the batteries last longer is to PEDAL MORE!!
How about a solar panel helmet that charges it while you ride?