got a chevy lumina having a few issues..First time the car wouldnt start we changed the fuel pump relay and she kicked right in, ran for about 2 days. Then she wouldnt start up again. It would crank and almost turn over but not get there. Had it towed, then we jumped it and it started up fine. Ran for a minute rebbed it and it cut off..Went to sleep next morning didnt charge battery or anything, just fired her right up..She started up about 9-10 more times in a row after this..We decided to take it around the corner and it died on the way..after i pushed it back to my house i started it up and it went right on again..The battery is pretty old still has the removable caps, and the liquid was very very very low, we filled it with distilled water. What does this sound like? Just a bad battery?????