If it's a new camper to you I would make sure we were IN the TT (or at least hanging around) while the crock pot was cooking. It takes awhile to get the know the "personality" of a new (or different) RV. Better to be safe then sorry.... you want to be there if something malfunctions.
Also.. just me, but I'd want to be plugged in to shore power if I was using a regular slow cooker.
Edited...
I had NO CLUE they make a 12 v slow cooker!! Something else I have to watch out for... hehe
.
~ It's a fine line between hobby and mental illness ~ Dave Barry
Carl, Felicia, Eva & Pip (the fur kids)