[rdorman]

I just went through the same thing. Everything tested out fine. Ran the full set of diagnostics. Even had the battery tested. No issue. Took the battery back to some one who knew what the heck was going on for testing, bad battery. They can be bad right off the shelf. Some of the places have some pretty darn advanced testers these days. The one at Autozone ran it through a whole list of timed tests. Not just a simple load test.
Rick