I'm a bit embarrassed to ask this, but oh well...I have a 1980 Hunter and two questions:1. Does the battery charge when I'm hooked up to shore power? I left the instruments and glow plug (or whatever you call those two switches next to the button you push to start the engine)on, and the battery was dead. 2. And by the way, what are those two switches, and where should they be (up or down) when you're doing whatever? I've guessed that one's a flow plug...sort of warms the engine before starting, and the other has to do with charging the battery. I'm grateful for this website, and all of your answers. Thanks. Linda