I have read what I could about this, but have not seen a simple solution. I have 1000W of panels with Multiplus 12/3000/120, 150/85 MPPT Charge Controller and CerboGX / Touch50, 3 x 200Ah Lithium. I shut off Shore Power completely Late Spring thru Fall and all is good, but during the winter months I want to take advantage of all Solar, when available. Shore Power powers all AC, and solar kicks in for the DC demands. I have currently limited Shore power input to 12 amps. Should I lower that even more and find a balance, which will keep the batteries up, or is there a setting where Solar can be utilized to its max whenever available, and Grid/Shore to take up the balance. I know I am being simplistic here, but I am looking for a straight forward solution.