The battery was new this summer.
I drove to work and the O'rielly's is just accross the street. The batt light was on the whole way (thankfully I don't need headlights in the day). I called the parts store on the way to make sure they had the alt on the shelf (they did). I went in and told them I needed it checked. They have a tool to check it while it's in the car which is nice. So I got the younger guy, who I don't think is that bright, to check it out. He hooked it up and said my battery was low and needed charged. I said "No kidding, That's becasue I think the alternator is bad and not charging it." So I started the car so he could measure the alt. output. He said it was weak. COOL. I bought the new alt. and drove accross the street and had the new one in the car 15 min. later. I had no more batt light all day. Took the old alt back to get my $200 back from the warranty and I'm golden. I do need to check the water in the battery soon just to know.
Thanks for the extra input and knowledge guys.