I was driving home from work, noticed that the battery light was on and the car started to jerk a little until it turned off completely. It will take a jump and as soon as I start to drive it does the same thing. I got a new battery (because I was told the old one was crap) and it turned on no problem. I went to a friends place for a while and when I went on my way home the same thing happened on the highway. Could this be the alternator or starter? I noticed that while with the tow truck driver the hazard lights were getting weaker as we grew closer to my house. any help is appreciated. thank you.