I have a 4x100 ah SuperPack Lithium bank on my boat that suddenly stopped working. They refuse to take a charge. The Cerbo shows them at 45% shortly before they turned off, there were no big loads at the time they were running other than the wind generator
I have pulled one of my starter battery’s to confirm the 12v system is still functional. I unfortunately don’t have a multimeter on board… oops.
When I run the engine the system doesn’t seem to charge…. I’m at a loss.
Any help is appreciated.