I have set up a SmartSolar 100|15 charging a 24V nominal (7S) lithium battery bank with its own proprietary BMS. I am driving all loads from SmartSolar's load port. I have installed 5 DC panel switches good for up to 10A.
One of the switches connects to a generic 300W buck DC-DC converter that outputs 12V, powering some LED lighting.
Thing is, whenever I switch the power to that buck converter to ON, the SmartSolar kills the load port for a couple of seconds and then resumes normally. I tried with various loads on the buck converter, even with no load at all.
I suspect it must be some capacitors charging inside the buck converter, however this happens even when I cut the power to the converter for just a moment and then restore (I would expect the caps to remain charged for such a small period). That said, I guess this issue may have to do with overlapping frequencies between the SmartSolar's and buck's switching power supplies; that lead the SmartSolar to believe that there's a short.
I will be connecting the buck converter directly to the battery eventually. Anyone had any similar experience?
