[bushpilot]

you can spend some pretty hefty $$$ ($300+) on a jump pack large enough to start a coach....and theyre HEAVY & present storage issues (better keep it charged too).

comparatively you can spend some good money on a set of heavy duty jumper cables (or make your own by using welding cable)....even if you spent a 150 bucks on some 1 gauge jumper cables you'd be money ahead imo.

I keep a nice (long set) of jumper cables in my "too" storage bin....theyre long enough to reach between my 3 house batteries and my 3 engine batteries...i can effectively jump MYSELF.

Northern Tool - Portable Jump Starter Packs

jumper cables from Northern Tool + Equipment