I thought that I would return to the breaker box/cabinet but I found that the boat had no power (120v/12v). I know we had 3 brown outs in quick succession last night so my guess is that it caused a fault condition which turned off the charger – but not the inverter. I had 2 space heaters going (to dry paint) and they drained the batteries – which caused a second fault condition.
The batteries were down to 9v. Bilge pumps were still working. I have a portable charger on the batteries now and hopefully the batteries will get charged and I can have the whole thing working again.
I found a couple of issues while trouble shooting. 1. the LED on the shore power cable does not work (or the cable is not working – unlikely) and 2. the breaker button for the Input AC is (was) impossible to get to. I ended up cutting a slot in the bulkhead so I could get to it. Turns out – it was not tripped. The bed frame covers up the slot nicely. I can get to in the future.