How long did your OEM battery last?

4 years before it started to die. Could have gotten more time out of it.

 

I got 11 years and 180K miles on my original battery in my 2008 truck.

 

About three and a half years on the OEM battery and one year on its replacement, which was a Bosch from Pep Boys and since Pep Boys got bought out they didn't honor the remaining warranty. Neither of those batteries gave a hint of warning that they were going south. They worked and then a couple of hours later they didn't. No slow cranking just dead. I think the last one I bought a year and a half ago was about $230.

 

Every 4 years on average.

 

Mine lasted when I had my 12 Tacoma 4+ years which I got lucky with because I live with the heat. And the heat always eats up batteries to were they only last 2 years.