Things can change quickly on the water. One moment you have your generator running, stock being made in the pressure cooker and hot water warming for a nice shower. The next moment, you find yourself at 336ah accumulated and no charging goings on.
So far, the culprit looks like this. A simple blade fuse. No problem, I pride myself on hauling around more tools, parts and, wait, what the heck, where, ahhh noooooooooo. Rats.
Update: fuse found, problem solved. Had a high resistance connection on a 250 amp line from my dc generator at the 250 amp fuse itself. Cleaned up the connection, cool as can be. Ah counter back to 115 after charging.