But on 12v batteries you are limited to 520W ,,, You can double that with 24v.
He is not limited to 520W just to expand that thought fully.
The SCC max at saturated capacity is 520W for a single unit of that controller.
I personally would want those panels on a 40A SCC
Living in a MH with frequent power outages that can last for days, my primary concern has been our fridge.
FWIW I have ~5kWh of LiFePo4 currently being charged by 630W of panels on a “60” amp standalone SCC and 1260W of panels on the 80A output of an MPP Solar 1012LV-MK (inverter turned off). I can run 1.5 to 3 days of poor sun running a 12V RV furnace, lights, water pump, 120V 8cf top-freezer fridge, cell booster, phone & laptop charger, etc.
I still get some charge in snowstorms and cloudy days with vertically mounted panels (no snow accumulation) here in Vermont.
The last ~60 days required about 90mins of running the generator but I only was using 1260W of panels up until a week ago. (I’m offgrid but I play musical panels and stuff sometimes)
So that is how you can imagine ‘protecting’ your fridge.
Not really an option to add more panels, so will have to make do with what I have.
There’s always options
300W panels can be mounted to the side of the RV to gain capacity. Just park with that side S-facing.
300W panels are roughly 40” wide by 74” or so tall. So just about the largest panel that conveniently mounts on an RV. Bonus is the price of that size is pretty low/watt.
