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How would the number change if I exchanged the Victron SCC from the 100/30's I have to two 100/50's I can still use the same 2s2p settings for the 230 watt panels (82v and 11.2 amps) BUT I will output to the batteries ~600 watts per controller vs ~420 watts per controller which is close to 42%...

I follow now. Thanks for your patience. I am learning so much but it's a bit overwhelming My current (yeah, bad pun) thought is: Front of the motorhome gets 4p set up as one array, 2 panels each side going to one 100/50. This can use 10 AWG. This is about a 2.8% drop Rear of the motorhome has...

Thanks! this was super informative. I was planning on either getting up to 6 230 watt panels or 6 185 watt panels. So, If I do 4p for the 230's I get volts at the 41v and the amps are 5.61*4 = 22.5 And 5p is the same 41v and 28.1 amps Is 28.1 amps too close to the limit? For me the best...

My Next question is about wire gauge.. If I have wires going the 30 feet from the back of the RV, and then down 11 feet, that is max run of about 41 feet. Add in a bit of wiggle room and crossing from the other corner and we are at 45 feet. at 30 amps being pushed, doesn't that mean it needs to...

Would that be too much heat in the wires due to the smaller size?

I am about to start the install after gathering components for my Motorhome Solar Project. I have one main question that is likely silly, but want to confirm with the experts. Due to conversations earlier on here with my current (oh man) Solar Charge controller (Victron 100/50 x 2) I have to...

I have a Class A motorohome that has too much on the roof and as such I am really limited to panels that are less that 35 inches across. I am also trying to build on a budget, so looking at panels from SanTan. The two that they have are a 185 watt panel (vmp 36.4 and imp 5.1) and a 230 watt...

Would it be better to do 2s2p with 4 panels? This gets me 82v and 11.2 amps which would allow better flow through the wires. this drops the Voltage drop from 4.59% drop to 1.2% drop for 10 AWG for the same 4 panels, while still staying within the SCC limits using the calculator you showed. And...