​RE: Solar with two panels
First, BTDT.  For several years.
You want to wire the two panels in parallel.  That is connect the positive
wire of one panel to the positive of the other panel and the negative to
the negative.  Then feed just one controller.
It's that simple.
And last, after a few years of the hassle of setting up and taking down and
storing two panels you will probably end up buying one larger panel and
mounting it on the roof like I did.