So connected is good. Much more info that way than on the remote display. Just watching the panel and controller output as the conditions change is very informative.
After running on one panel for a while I switched to two in series. Like in bright sun light, series put out less than parallel. A single panel was putting out 9.44a in overcast sky, two in series was just over 18a not 18.88a like two panels in parallel would have been.
I also did a crude shade test to emulate the Max air shading one panel. as long as the shadow didn't cross a row the impact was minimal. as soon as the shadow covered the width of one row the Voc dropped from 70v to 59v. So either I have to remove the Max air cover, build a raised mount or buy the heavier cable.
I haven't quite got making pretty graphs in Excel yet, but I'm working on it.
All in all I am very happy with the 250w polys. The 245w mono's would have at best been at 2.38a each all day.
