Re: What kind of charger do I need?
With your ACR you only need a one bank charger. The ACR will close with a voltage rise from any source - alternator, AC charger, solar or wind gen - it doesn't care where it comes from.
Having the solar and AC charger working at the same time will not be a problem. With a good output from solar the charger will back off. The batteries are the determining factor to charge current at a given voltage - regardless of how many sources it comes from.
I do not have an opinion of the Noco Gen 2 charger. Hopefully someone else will.
Living aboard in Victoria Harbour