Cheap China Solar Controller Failure
For a couple days been noticing higher than the 14.6 voltage,.....going to 15, and even 15.5,....I knew something was not right. The next day it was showing 16, then quickly went to 17+.......I quickl...
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I found this to be an interesting read:
http://www.victronenergy.com/upload/documents/White-paper-Which-solar-charge-controller-PWM-or-MPPT.pdf
It verifies BFL's observations, regarding the effect of panel temperature on mppt output, but it also shows there is range of panel temperature, with-in which pwm has an advantage, and with-out which mppt has the advantage.
http://www.victronenergy.com/upload/documents/White-paper-Which-solar-charge-controller-PWM-or-MPPT.pdf
It verifies BFL's observations, regarding the effect of panel temperature on mppt output, but it also shows there is range of panel temperature, with-in which pwm has an advantage, and with-out which mppt has the advantage.
