question

sandman avatar image
sandman asked

Is 5 panels to much?

Hi I have a 150/45 with four 170W panels with max P and Short Circuit A of 9.5 Amps. They are I assume all in parallel, plugged into a 3 port box (2 with a parallel pigtai)l on the roof of my RV. The openV is 23.8V know the efficiency of these panel are no where near 100% which brings on the inquiry.

Would I be pushing it if I add one more 170W PV? Thanks.

John

Solar Panel
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1 Answer
Alexandra avatar image
Alexandra answered ·

@Sandman



Input short circuit limit on the 150/45 is 45A.

5x 9.5A is over the limit at 47.5v. so would definitely be a no.

Even if they were series parallel you can't add one more to a string you would need to add two to be even.

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