I went to go start my teg today and the car was dead. I jumped it and the car drove fine for like 30 minutes. I left for about 6 hours and now the car is dead again.

Battery or Alternator?

 

quick test for the alternator, jump the car, while its running disconect the negative cable on the battery. if it still runs then the battery is the cause. if it dies then the alternator is shot

 

There is a third option: You've got a parasitic short that is draining the battery. The battery and alternator could both be perfectly fine.

 

measure the voltage across the battery while the car is off. measure it again when the car is running. if it shows a higher voltage potential while running, then your alternator is working. If it shows a significantly higher voltage potential while running, then your alternator is working very well. If this is the case, your battery is at fault. If it voltage is lower when the car is running, you're alternator is draining your battery and that's your problem. you should be able to measure all of this at idle engine speeds.

 

go get a load test on the battery. easy solution

 

+2 old skool trick but its an obvious to check before you result to the forum

 

alternator but with u driving it and jmpin it it could have killed ur battery as well but get an alternator first that should be the problem

 

yea alternator is gone so replace it then let me know if that was it?

 

yea alternator is gone so replace it then let me know if that was it?

 

to me sounds like your battery, if it was your alternator i dont think the battery would have lasted 30min worth of driving without it getting a charge but i could be wrong.

just take your car to autozone pull your battery and have them test it, if its bad buy a new one if its good buy an alternator.