re: What the average lifespan of the original battery that comes with new vehicle..?

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I called the dealership telling them to come get their piece of shite car b/c it woudn't start,

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No you didn't

bbbbbbbbbbbnnnnnnnnnnnmmmmmmmmmmk

3-5.0 years is average like several other people have said.

My F150's OEM battery lasted 12 years, replaced it with an Duralast Gold that lasted 3 years, now has a Deka AGM. My Ranger has a Duralast Gold that is 4 years old and still going strong, my work truck has the OEM Motorcraft silver calcium battery that is 5+ years old. If I don't plan to drive a vehicle for more than a few days then it goes on a trickle charger. I've had AGM and regular lead-acid batteries spend months on trickle chargers and it definitely keeps them healthy between seasons.

2-5 years.

2-3 years. Except on new dodge Rams, they seem to last less than a year

3 years is about right

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I have never seen a battery sold with a” blanket “ three or five year warranty. They are always pro-rated warranties. Meaning that if you buy a 36 month battery and it craps out at 24 months,they will refund a third of your purchase price. ( 12 months worth

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I get mine at OReilys Auto Parts. I’ve always just brought the dead battery I originally paid for in and gotten a brand new one installed and not paid a penny out of pocket cause it was under warranty.

Well I’m going to check them out next time I need a battery. Seems like I always just get 7 or 8 bucks credit.

2010 Silverado w/ 78k miles, still original battery. But it is the only nice thing I have to say about the truck.