Average life of OEM battery - Ford Mustang Forum
View Poll Results: How long did your oem battery last?
Less than 2 years 8 9.88%
3 years 18 22.22%
4 years 13 16.05%
Still going strong 42 51.85%
Voters: 81. You may not vote on this poll

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post #1 of 70 (permalink) Old 10-10-2016 Thread Starter
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Average life of OEM battery

Hey guys my car is coming up on 4 years ownership and the stock battery I think is losing its crank power. Just wanted to know about how long the stock battery lasted on your cars.


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post #2 of 70 (permalink) Old 10-10-2016
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3 years max for even good brand name batteries is all you can depend on. Some last longer. but it's a crap shoot after 3 years.

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post #3 of 70 (permalink) Old 10-10-2016
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2012 with 24K miles, the original battery died shortly after buying the car 3 months ago.

12 GT Brembo, MT82, 3.73 rear
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Suspension - Strange Adj Shocks/Struts - FRPP K-Spring front, Eibach Sportline rear - J&M CC Plates - BMR LCA/Relo - Steeda Adj UCA - BMR Adj Panhard - FRPP Sway Bars - FRPP Jounce/Bump Kit
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Engine - Stock, for now...

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post #4 of 70 (permalink) Old 10-11-2016
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I have a 2012 with 39k miles and I am still on the original battery. Haven't had any issues at all yet.

2012 Mustang GT, Brembo Pkg, Yellow Blaze Metallic

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post #5 of 70 (permalink) Old 10-11-2016
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Mine is 4 years old with 62,000 miles and going strong.

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post #6 of 70 (permalink) Old 10-11-2016
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Mine died before the 3 year mark.

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post #7 of 70 (permalink) Old 10-11-2016
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The battery is a hit or miss type of thing. Mine is over 6 years old with 26,000 miles and still going strong

'Little Red'. 2011 V-6 Mustang. Automatic <acronym title="transmission">Trans</acronym>. C&L C.A.I. Ceramic Coated BBK Long Tube Headers and Catted Shorty X-Pipe. Magnaflow Street Series Axle Backs. 3.73 rear gears. GT 500 Lower Control Arms. JLT Catch Can. Axle Exchange Aluminum Drive Shaft. Steeda Watts Link. Several more mods...1991 F150 4X4 61,000 miles. Wifes car, 2014 Ford Edge Limited.
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post #8 of 70 (permalink) Old 10-11-2016
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3-4 years for an OEM battery, sometimes they last longer, sometimes they die early. Lots of variables in how long a battery lives for... environment, charge cycles, how deeply it was discharged, if it was ever shorted, etc... Some aftermarket batteries have a guarantee of a certain lifetime, if they die before that you get a freebie.
Personally I'll be getting a lightweight battery when mine dies, but I can't justify spending $200 on a lightweight battery when mine is still perfectly good.
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post #9 of 70 (permalink) Old 10-11-2016
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Originally Posted by Dana W View Post
3 years max for even good brand name batteries is all you can depend on. Some last longer. but it's a crap shoot after 3 years.
^ this. The summer heat here in Phoenix is really hard on them, I replace at 3 yrs and consider it PM. I hate to be stranded..
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Batteries are judged by time and not mileage. But environmental factors play big in battery life. Mine is 2 years 3 mo old and I have recently noticed that the starter is not as quick to turn initially as it has been. It turns fine once it gets going, but that initial turn seems to be getting harder for it. I'm expecting to have to buy one by the time winter is over. So mine will end up not quite lasting 3 years.

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Last edited by Okie Hick; 10-11-2016 at 10:32 PM. Reason: add verbiage
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My 2007 battery died just before I it for a traded for a 2011 GT and I have not had a battery issue since.

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Mine still cranks like when it was new (2011); 16,000 miles on the car. Thinking of replacing after I pull it out of storage this next spring....

2011 5.0 Convertible Premium, Black, Auto, Acc Pkg #6; GT500 Axle Backs, FRPP Tune.
2017 Escape Titanium AWD (Winter Driver).
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My battery start date: 27 Oct 2011, still going strong, 15,000 miles on 2012 GT Premium.

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Still on the factory battery in my 2013, but I think it's beginning to get tired. Cranks slower than normal sometimes.

"I've secretly replaced your tow-rope with a bungee cord. Let's see what happens..."
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Originally Posted by Okie Hick View Post
Batteries are judged by time and not mileage.

True! I only have 12K on my 2012 and just had to replace my battery after 4 yrs 8 mos. It was noticeably cranking slower and if the car sat a few days the speedo and tac needles would drop below zero and quiver for a few seconds before resetting where they belong after starting the car. The tech at Ford told me that is a telltale sign of substandard voltage.

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