Not to scale but basically what I have done,,, short run from the mppt to the battery
Only thing I'll change is the way I hook up the panel using those MC4 connectors
instead of a 50 amp anderson plug, Bummer as I need to change all my panels
80 watt, 20 watt and a 10 watt,plus my new one 120 watt
@ Bob did you have yours screwed onto a board or something
maybe screw it in a low tupper ware dish with some vent holes