My 09 R/T, has 51K miles. It is stored inside. I am wondering how long a battery will last under normal usage. I haven't had any problems, but I know that heat is the biggest killer of batteries. I am wondering what problems people have had when their battery goes out. Does it just go dead? Starts one time and then is dead the next time? Do you get any early warnings?? Should I be considering changing mine before I have problems? Thanks for your input.