Thanks very much Merl. I am more than happy to be guided by you. Totally agree about the cabling. I was never happy with that. Not averse to changing the controller either or how the engine
battery is topped up. Lets have a chat over the weekend maybe. Ill see if I can get measured up on the roof as well.
I always liked my old MPPT Controller as it displayed all the voltages / watts going in and out on an LCD screen. Old hat now I would imagine and as suggested its probably best to have something thats future proof for Lithium.
This was my old one.
www.mppsolar.com