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...
Forum Discussion
JiminDenver wrote:
I believe he is saying that when you use PWM and the battery voltage is low that you only get a portion of the panels output. With MPPT you don't lose those watts early on and get the full potential of the panel regardless of battery voltage.
One of the people I follow on you tube recently switched his two 100w panels from parallel to series on his Eco-W. He is thrilled with the results.
Difference in price of a 30 Amp MPPT charge controller and a 30 Amp PWM charge controller. is such that output wise, you'd get more amps adding another 100 to 120 watt panel, and additional 5.5 to 7 amps, over what you spent to go from PWM to real, honest to god MPPT solar charge controller.
It's pretty much like normal aspirated engines, add cubic inches for more power. Add more panels for more amps, it's far more cost effective than MPPT on smaller 12v systems up to 360 watts. MPPT price points can make them prohibitively expensive in smaller systems.
