Replaced by Cadillac with an AC Delco 6 year battery in jun of 2009.
My battery was replaced in jun 2009 and has started dying again. on 2006 Cadillac SRX
my opinion is thats about how long delco batteries last. i quite using them for that reason
Their is no way to tell how long a battery will last. But, if a battery lasted you 3 years you are one of the lucky ones!