Hello all. I am brand new to J30s and learning the ropes on some of these repairs and hoping I could borrow some of your expertise.

I had the boat to shore power with a little space heater on to fight the freezing temps. When I came back, I switched to the battery and it seemed they had gone dead. I made sure the battery charging switch was up, unplugged the space heater, and plugged shore power back in and I thought the batteries were charging again, as evident by the voltage meter slowly rising on rechecks. I came back the next day and now the battery charging switch keeps turning itself off, almost like its tripping a circuit and the batteries are dead.

Could anyone explain to me whats going on with this? Did I blow something out with that space heater or is there a capacitor that I need to replace to get the batteries charging again?

Thanks for the advice everyone!

- Cameron