My car battery was just baught about a month ago and died last week, so i check to see if there was enough volts coming into the battery when the car is on to see if the alternator was dead. Which it was. So i changed the alternator and got another new battery cause the other one would not take a charge again. But now today the battery is dead again and i can not figure out why. There is nothing that is on after the car is turned off. Any suggestions would be helpful