I did some graphs of the power curve from solar panel voltage = open circuit to solar panel voltage = 48v (shorted to the batteries) starting just after the sun peeked over the panels until around 8am. Each period from open circuit to "short circuit" was about 40 seconds.
It's possible that the above curves werent' really the max power. They might be though. I think there may be some local maximums that aren't global power maximums.
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