Looking to upgrade my solar on my travel trailer. I have 2 500w solar panels. Need to determine what size solar control I need . I will also be upgrading the batteries to Lithium 480w, 12v . No plans to upgrade the inverter yet.
Have a look at Victron MPPT calculator
Best fit is probably the SmartSolar 150/60. Max delivery will be about 850W so may lose a bot of power on the sunniest days. If desired you could go to the SmartSolar 150/70.
Tried the calculator. It says mppt 250/60.
I will have to run this in series u less I penetrate the roof.