/diy/ - Do It Yourself

Building up my ute ('straya mate) to go camping and whatnot.

I've gonna put a solar panel on the roof, 300w, with one of these bad bois(pic) to manage it. It's going to be connected to a 190AH AGM battery, should be great.


Anyway, I had a thought on how to charge it while I'm driving just in case I don't get enough sun or whatever. Just want to hear what you guys thing if it will work or not.


If I get a CCCV boost board ($10-20) and connect that to switched power of the ute, and set the voltage to something like 25v. and wire that into the solar input, would that work okay? It might only pull 50-100w but that's better than nothing imo.


If that works, I also had an idea to use a break relay ( I think they are called), wire that in parallel with the panel to the controller so when the sun is out, the relay is open stopping the car charger current, when the sun is down the car is free to charge.


What do you guys think, could this work or am I crazy?

(I am going to fuse and breaker everything, gotta be safe frens)