I just bought a 2006 Hyundai Tucson. I've had it a little over a week and the battery has died 3 times. Any ideas what's going on? I've had the starter, alternator, and battery tested and they all look good. I'm positive that I haven't left anything on.

 

I believe there was a recall on Hyundai radios that caused a battery drain. You need to do a battery drain test to know for sure.