My original Optima Redtop battery finally died, after owning it for 5 years. I'm not sure if that's decent or not. That was the car's 3rd battery. I bought my '93 in 1998 and it was already on its 2nd battery, and I bought the Optima in spring of 2000. Meaning by the time my car was ~ 7 years old it was on its 3rd battery. Now at ~ 12 years old its on its 4th battery (I just bought a new Red Top). I was wondering if ~ 5 years life for a Z32TT battery is average, above average, or below average.