westend wrote:
I'd suggest to mount one on the roof and carry one as a portable. You'll have the best solution possible. The portable one can be smallish to ease setup and tear down or use multiples. Remember, you'll be driving on the road and harvesting, along with the excellent battery maintenance solar does while in storage.
that is certainly a good option, and the two panels can still be connected to one charge controller.
And, if you do much driving vs. camping, the days drive can pick up lots of AH, combined with what you can get from the TV charge current can be a big boost.