Yup. I did a LOT of research to find the “right” panels for my application. Roof mounted on my van, fitting between the offset ceiling fan and little solar fan already there. My panels were specifically planned for a bigger Sogen. I have an ElecHive 2200 on order through a crowd funding app. COVID delayed the development and shipping. I may never get it at all but still hoping. I can’t invest in a big one until I know the original plan is a failure.
My plan was to series the panels for that Sogen. It handles the higher 150 volt input but needed more volts to charge than I would reliably get from 12 volt panels.
I had to get something for this summer and the AC50S seemed perfect. When I found the DC issue with the fridge, easiest solution was just order a second unit. I had two panels so could charge both simultaneously, one panel per unit.
Worked great for just me but next trip will be with the wife and her CPAP and maybe needing just a tiny bit of heat? I have a 350 watt electronically controlled heater, too much current for the AC50S so was thinking an EB70 would handle that. But if I can’t recharge it that’s no good.
I could buy an external MPPT that would limit the voltage for the EB70 but that is getting into $ and components I was trying to avoid by going Sogen in the first place!