Jump N Carry JNC8550 550 Amp 12V Capacitor Jump StarterJump N Carry JNC8550 550 Amp 12V Capacitor Jump Starter 550 Start Assist Amps with UltraCapacitor **NEW** Ultracapacitor jump starters from Jump N Carry provide plenty of power for starting vehicles of all shapes and sizes, such as cars, SUVs, light and medium duty trucks. These units utilize an ultracapacitor power source, which is largely unaffected by cold temperatures, providing approximately the same starting power whether it is 70F or 30F. In