What size MPPT solar controller
I'm in the final stages of a solar install - last part is the panels and controller. Although we generally only use 100 AH a day, or even less, I am wanting to build for 200 AH a day eventual capacity in case we decide to replace propane refrigerator with electric (if current 10 yr old frig breaks). Our present setup is a 4 battery bank with 370AH capacity (2 banks of 2 6V 186AH Exides in series, and if we add frig would be going to 6 6V 110AH Trojans, wired in series and parallel, for a 660 AH capacity. Looking at Morningstar Tristar controllers which come in 30, 45, and 60 amp ratings. Your thoughts on which one to buy?
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