1000 cranking amps is an insaine number. Let's go back to electric 101 one more time. A component will only draw however many amps that it needs to do the job. If you have 1,000,000 amps as the source and the component draws 1 amp, the remaining 999,999 will not be used.


Seeing that amp draw vaires with starters, the requirement, based only on a good guess, would somewhere between 150 to 450 amps. As a result, the 650 to 750 Banshee suggests is adequate. And if your anal, 850 is way more than you'll ever need.