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I have a (1) TON GMC pickup as a winter driver. Yesterday the batteries were very week so I bought and changed to two new ones. During this process I looked at the date that I had marked on each one of the old ones. I had installed them in March, 2003.. That is 13+ years folks. I have been around for a while and never seen a battery last that long before.
I got 10 years out of an Optima Red Top. I have typically only gotten 2-1/2 years on OEM Delco batteries, although the one in our Enclave went 6 years. I'd say you did very well!
From: Currently somewhere in IL,IN,KY,TN,MO,AR,MS,AL, or FL
Automotive batteries can easily last 10 years if you NEVER abuse them. Similar batteries in an industrial setting that get good maintenance can last 25 years or more. But most people (me included) don't do everything they can to protect their batteries which means on a tender ANY time you aren't driving and never drive less than 20 miles before stopping. I typically get 7-10 years.
That's a long time. North Texas summers and winters tend to kill them pretty quickly. Most of mine die right after the three year free replacement warranty runs out.
Damn that's a long life for a battery!!!!! The battery in my C5 Z06 (I'd have to check for sure on exact age) is over 6 years old and I thought that was crazy. I do have that car on a tender almost constantly as with my busy work schedule and young daughter it spends more time in the garage than ever.