A while back I got a dual battery isolator, the NOCO IGD200HP 200a isolator to be specific.... but still haven't got it installed, nor a 2nd battery.

Now I'm thinking about using it for another project... but I may want a 250a - 300a alternator.

I haven't been able to find an affordable 250a+ battery isolator, but I'm not sure if this one can handle the added current from a larger output alternator.

Any thoughts or ideas?

 

Not sure Wrangler Power Products have one to fit a 3.0 but this site has some HD stuff for Search and Rescue Vehicles.
Call them and ask about a larger output.
I wanted an HD Relay (12V/250A) to control my winch output and they hooked me up with a continuous duty relay, never would have found it otherwise. They are pricey but quality cost money.

Wrangler Power Products - Web


I also have an HD Set of Jumper Cables, with one changeable end.
I have standard a jumper clamp and a plug in ends, and they are made from “0” gauge welding type cable except heavier sheathing.
They do really nice work and my next alternator will be from them.