Rated for your vehicle's loaded weight, stored so you can reach it without unpacking the camp.
Assume no bars. Plan how you call for help and how you know where you are.
The two things you cannot borrow on a remote track. Carry margin, not the minimum.
Every electrical draw competes with your starting battery until proven otherwise.
Kit that turns a pull-over on a station track into a base camp for the night.
The five-minute fixes that save days when the nearest workshop is 300 km away.