So I have just replaced all 4 of the solar panels I installed less than a year ago.  They evidently had a tendency to catch fire &/or lose function.  They didnt catch fire but definitely didn’t make power anymore.  I replaced them all with HQST flex panels and i’m getting over 20amps charge from them now, i got the fans on full blast!  Also had to replace a defective charge controller.   Glad these 2 manies have good customer service…