https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
These and some alligator clamp surgery take all the guesswork out of
Jump starts(you or them)
Compressors
Inflators
Impact wrenches
Lights
Electric vehicle jacks(they make them up to about 3 tons)
I'm usually cautious about recommendations and try to match the ability spoken in the question.
But
You can buy these with a mounting plate, so it's just two battery terminals to install.
(The quad was 100yards closer than than RV. So a picture of the quad as proof if experience)