Working with a new SmartSolar 100/20 controller in a simple system with a single 12v AGM and a single 100W panel. The load is a small DC refrigerator. Also using the Smart voltage and temperature probe.
I notice on occasion I'm not getting any charge (2-4W panel yield) despite full sun on the panel (and a high voltage at the panel) while a load of 5.5A is drawn from the load output on the MPPT. Then for seemingly no reason charging will resume either when the load has shut off or it just jumps back up to 70-90W for no noticeable reason.
Is this related to charging modes? Temperature? A fault?
I really like this controller a lot but don't trust this behavior without understanding whats up.
Thanks for any insight,
