[Mindyshop]

Last week noticed car wasn't running up to peformance, took it to the dealer, they put it on the machine and diagnose dead battery. Actually felt battery was going dead a few days previous. Didn't have a choice in going to the dealer, could have gotten a battery cheaper elsewhere but I'm in the Chicago area and traffic is a nightmare, I was close to the dealer. Asked the guy, is this the problem because I dont have time to play around with this. He assured me it was. Trying to start the car in dealer parking lot AFTER battery replacement, bsttery light comes on and car barely turns over.
Take it back the next day, they have it all day, they see the problem in the am but cannot get to do it in the afternoon. AGAIN they tell me car is fine, everything is good, starter, alternator, etc. I would tend to think they are being honest. I think they they only tightened up cables because for the next 4 days car started and ran fine. Next 2 days battery light comes on everytime. Starts 6 times out of 7. Now I'm stranded so I jiggle the battery cables around and it starts. 50,000mi and full maintenance checks. I'm frustrated now. Any advice?