Thanks for the tips so far. As soon as I get a chance, I'll check those things out. To answer some of the questions:
> I had all of the interior lights on. (Those small little bulbs are just so darn dim, I need all of them on to even get a little light in there...)
> I did not have the heat or air running. I assume the fridge was running though. (Original fridge, and I did not have gas connected to the trailer).
> I did run the shop vac for a couple of minutes at a time here and there.
> I also had a work light (garage type, hang-up light with a cage around a 75 watt bulb) turned on most of the time.
Does the household 110V light use less power than the interior lights? The bulbs that I have in my AS are the #1141 automotive light bulbs. (I have a 1969 25' Tradewind) It just doesn't seem like these would consume enough power to make this happen. But, like I said, I'm still learning...
Thanks again for the tips!