Re: 85 bayliner Ciera. Electrical issues
I do believe you are indeed "overthinking" this. So for the sake of brevity here we go.
All of the outlets in your boat are 110 volt - shore power operated. Has NOTHING AT ALL to do with your batteries - NOTHING !!!!.
With your shore power cord plugged in they will work. With the shore power cord NOT plugged in they won't.
There are two different and distinct electrical systems on your boat.
110 volt and 12 volt. Your 12 volt system is operated from your batteries. This will operate all of your electronics and the interior cabin lights. It will not make the outlets HOT ( they're 110 volt shore power - OK? )
Now, once again. A battery charger will NOT activate the outlets - it is a completely different circuit - .
So, to recap: shore power plugged in, outlets work. Shore power not plugged in, outlets don't work.
Of course if you have a generator on board that theory goes out the window.
We thinking along the same line here????