Thanks everyone for the replies. Yes it is 8 kids but the toilet use would be mostly for my husband, me, my 2 year old daughter and maybe the 7 and 9 year olds so I don't have to get up when/if they go out in the middle of the night. The 1 year old will still be in diapers and the older kids can run to the vault toilet. We will keep an eye on how full the black and grey water tanks get and adjust usage. I am not opposed to using the vault toilet but would like to take advantage of the convenience of the camper toilet if possible. I have tent camping memories of me being about 3 1/2 months pregnant and running to the campground bathroom at least 8 times one night between myself and my younger boys a few years ago!
I do not plan to use the fridge because I am just too afraid of the battery dying and losing food would not be good. We have a 5 day cooler.
My husband is pretty sure they are NOT LED lights so that is why I just want to disconnect the battery and plan not to use it at all. Minimal usage could easily become maximum usage with our crew. I can see one of the kids running into the camper to get something and leaving a light on all day. We will eventually switch to LED just not this year.
We don't plan on using the furnace. We have tent camped in the fall when it got in the upper 40's at night and we were good. The dates have not been confirmed for the camp out but most likely mid summer so I don't expect it to get colder than that.
Someone mentioned the propane alarm needing the battery? Can we just turn off the propane at night? I guess we could reconnect the battery at night.
I have read it is not good for the battery to get too low...
Does the slide need a charged battery to operate so we can bring it back in when we are ready to leave if for some reason the battery did die? How would a dead battery affect us at the new campground with electricity?
The campground is very rustic and I really do not want to have to be running the car for a long time to recharge the battery.
If I had to buy all this stuff, it would be cost effective to just buy a generator but since we already own all the stuff, I figure we might as well just use it.
Originally, I had a pretty generous vacation/camper budget for this summer but my oldest son swore into the Delayed Entry Program of the Marine Corps recently and we need to use a huge chunk of it for all of us to go to South Carolina in December for his graduation! So now I am just having to make some adjustments to our previous plans...but well worth the effort.
Thanks again for the replies. It helps to talk (write) through it to make sure I am not forgetting anything! I am a big time planner (have to be with 8 kids) so that I can relax when we finally get to our destination.