Try tightening the nut that holds the power cables to the starter motor,
if the nut is even still there. The symptom you describe is not that
uncommon when the connection point at the starter is poor.

Mark

craig cowan wrote:
> SO,
> I have a mystery set of electrical issues.
> My battery keeps testing good. ........
> Symptoms:
> If the car sits for any period of time, even an hour, it will barely crank
> over. Very Labored. Once it finally catches it runs great. If i drive it for
> more then 10 minutes, it will put enough of a charge into it that if i shut
> it down and restart it pretty promptly, it fires right up.........