Re: solar charging problem - troubleshooting help please!
Do you have any monitoring capability that can tell you/us specifically how much the panels are making?
I'm going to assume you've cleaned the panels, but you'll also need to do the eyeball check on all the connections coming from them. You'll need to take a crash course in what's what on your system.
If you don't have an installed monitor that says specifically what the panels are making regarding voltage and amps you'll have to find the leads coming from the panels and take a voltage reading during normal sunlight, it should be over 14.3 v, if not they are defective.
If you don't know where to start, the place to start is taking LOTS of pictures so we can tell you what's what.
Lessons learned are opportunities earned.