1999 Chrysler 300 • 201,000 miles

I was at a gas station and turned the car off. When I tried to turn it back on it would try to turn over but wouldn't start. I finally got it started but it died immediately. Tried a few more times and then it wouldn't even try to turn over it was just clicking. My key wouldn't turn back all the way so I had to leave my car with the lights on therefore it completely killed my battery. I took my battery to auto zone to have it charged when I put it back in the lights came on but when I tried to start it it was still just clicking from the fuse box it wouldn't try to turn over. Could this still be my battery if I bought a new one? Or does it sound like the ignition switch or the starter. Or even the relay switch. I want to buy a new battery but if that's not it I don't know what to do.
November 13, 2012.

If all you hear is a clicking noise when you turn the key to start, the battery is most likely too weak to start the engine.

That's what a few people have said. So do you think if I buy a new battery it could possible start?

Nov 13, 2012.
I would think it would at least turn the engine over. Have the parts store load test your old one to confirm that it is bad.