Most V8 truck motors have 600 to 800 amp cold cranking batteries for a reason.
Those 800 CCA batteries don't last as long on the average as the 600 to 700 ones. To get the extra amps, they make the plates thinner so they can get more in the case. The thin plates crack easier and the batteries fail. Sometimes bigger isn't better.
Now, back to the jump starters.....
