Cyntur Jumperpack mini pictures Photo 2 of 5

Crap. It’s the dead of winter, you’ve just returned from a 10-day beach vacation, landed, cleared customs, and returned to the Park ‘n’ Fly with a suitcase full of Dominican rum. Its 1:15 am, you try to start your F-150, and there’s nothing. Flip the key around and try again. Nothing. Give it a moment, try once more, and still, the sound of silence fills the freezing air.