Originally Posted by Thomahawk
My original battery was still Good when i changed it in 2012, (installed in the Jeep in 00) I changed it as a preventive move cause i often Go up mountain in Winter and dont want Sh to happen.
My choice was a Bosch S4
That's pretty amazing. I've been an auto mechanic since 1993 and the longest one I've ever seen was about 8 years old and I've seen thousands and thousands of batteries.
Heat is the real killer of batteries though and it gets hot here in Arizona
My batteries have always avaeraged about 3 years (Interstate Megatrons) but last year I installed an Optima red top and so far (knock on wood) so good. I wanted an AGM because vibration is also a battery killer and supposedly the AGM's and Optima are much less resistent plus they don't sulphate and get all greasy on the outide.