The answer to my question is no doubt yes. Has anyone here replaced the Jayco supplied TPS -555 solar charge controller with an MPPT one? If so - which one would you recommend? Is this a straightforward task?
With my old setup, I have never seen greater than 7A supply to the batteries, but with the new controller I have seen it as high as 19A and the smarts of the inbuilt charger are much better.
The whole setup cost under $200 and a bit of time but I’m very happy with the result.