Good point on the potentially high energy draw of that fan, Nate. The batteries have survived the other nights just fine (although I don't recall the voltage in the morning). This morning it was reading 10V when I walked out to the rig. That was clearly not the voltage for the engine batteries as the Cat fired right up and the alternator started producing voltage immediately. However, to fire up the generator I then needed to do the "aux start" (or whatever they call it) switch which I guess ties the generator to the engine 12V batteries to start off of those. I need to do some more digging in to understand the electrical system on this thing and how it works fully. It seems from what I can tell that the cigarette lighters/power ports are off of the 12V house system not the 12V engine system. Tonight I left the fans off and will just let the batteries sit.
But if I need to replace one vent fan (as I think I do), I will probably just do both of them at the same time especially if there's an efficiency improvement to be had.
This also brings the question of the house batteries. It's 4 6V 225aH batteries. I don't know how long house batteries are supposed to last or what they're supposed to be able to support, but that feels low to me. I did some additional investigation on them. After everything was shut off (generator running a good portion of the day), 3 of the batteries registered 6V or greater (but none by a lot), one registered 5.8V. The rig also came with a battery fluid tester (one of those suction bulb deals). According to that, if you believe it, 3 out of the 4 house batteries are considered "bad" and one is considered "fair." There is room for me to make another battery rack above the current one to add more power if I wanted, however I also only have a 2000 watt inverter in the thing I don't think it'd produce enough power to run any of the appliances other than maybe the fridge, although it wouldn't run that for long.
So for the RVers, what do you exactly expect your batteries to do for you and when would you replace your house batteries?
Another thing I have to deal with is the septic hose. The RV came with about 20 feet of hose. However, our septic tanks are not near (or next to) the driveway, so I need about another 100' on top of that. Have to see what the best way to handle that is.
Laurie got all of the cabinets in the forward part of the cabin primed today and we went and got the paint for them, along with ordered the doorknobs we want for them. Yeah we don't need to do that, but we figure before we stuff the kitchen cabinets it makes sense. Plus, she wanted to do a deep clean anyway, so it works out for that, and we're taking care of a couple of the minor interior items that needed done. Really although this is in good condition, a lot of the hardware and such shows its age, so it's nice to freshen those things up.
Unfortunately, the buffalo/bull steering wheel I had on the Kenworth is no longer in production.