Just a little premature on Mini Max, it allows best operating point for panel, but still need some boost to match battery voltage.
Speaking of cool & hot solar panel: 697 mW cool[ 90 deg. F est], 679 mW,hot[120 deg. F est]. Hot about 97.4 % of Cool output.

 

one critical component not to forget is the blocking/schottky diode that will keep current from going back into the panel during conditions of low/no light. They will save your panel(s) and are widely available, here's one example.
http://store.solar-electric.com/diodes.html