Okay, just to give some closure to this thread... Advance Auto said they could not test the charging system without a fully charged battery (same as Sears). I went to Firestone because they said they would put in a charged battery (without me purchasing it) to check the charging system. As I thought, the charging system was fine, it was just a bad battery. I may not be a great mechanic, but I am very logical (which USUALLY helps)!