I have a 2006 9.3 Aero turbo, My problem is that every 2 years almost to the date my battery goes dead I take it in to have it checked and it has a dead cell just like the one before it. I am buying good batteries that cost $120.00 with a two year warranty and its a good thing that they offer the two years because every two years almost to the date the battery will die. does anybody else have this problem and if so what is causing it. I hate to get out somewhere and have it die.