I hear ya. Mine died over the weekend also. We were at Seven Springs for a Thanksgiving Mountain weekend. I'm loading up the wife, kids and what is an endless amount of gear, we stayed for three nights, and leaving the rear hatch open the whole time I was loading up, about 4 hours. We were the last to leave the rental. My Uncle pulling out a minute before us. I go to start up the 06 XK, and just click, click, click, click. I'm assuming dead battery, At least praying. I'm about 70miles from home. Do not want a tow that far. Call Uncle, comes back and we throw the cables on. After 1min, turns right over. Get home and start calling around for batteries. Sears $159 for a Diehard 3yr replacement, Advance Auto 159, Autocraft, same deal. Chrysler dealer near home, 150 for original Mopar unit. I think I'll get the Mopar. I guess 5yrs, 61k for original battery isn't bad.