Batteries
Elder User
Joined: Apr 2016
Posts: 633
Likes: 2
From: So. Utah
Well you don't say what year your truck is but I wouldn't go by what your '06 did. My '02 F250 7.3 got 8+ years out of the original Motorcraft batteries. Never had to replace the alternator and sold it 6 yrs later with the replacement Costco batteries. I haven't heard any problems with the newer trucks eating batteries, I only have 8500 miles on my '16 dually....so far she fires right up.
Hotshot
Joined: Jul 2005
Posts: 13,834
Likes: 26
From: Middle Tn.
My 05 was app. every 3 years and the alternator was still the original after 10 years.
Post Fiend
Joined: Jan 2009
Posts: 6,521
Likes: 11
From: Greenwood, SC
I usually get 3-4 years from the batts on a 6.7 engine but my duty cycle is nuts compared to most people. My 2015 just needed new batts last month and I've got 166,000 miles on it. The driver side got swollen up and emanated an awful sulfur stench. I thought I had a dead squirrel or something in the cowl...
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Senior User
Joined: May 2017
Posts: 117
Likes: 0
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Senior User
Joined: Feb 2012
Posts: 463
Likes: 1
From: San Marcos, TX
Short trips
means many more starts. I start my truck at least 15-20 times a day. It seems to me that it would shorten battery life. I'm trying a pair of Duracells. I only got a little over 2 years out of the OEM's.
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Post Fiend
Joined: Nov 2001
Posts: 6,748
Likes: 118
From: Tallassee, ALabama
My old 1996 7.3, I got on average 7 years per set. The originals went 7 years and the next set was Wal Mart. I had just replaced them when I sold the truck after owning it 15 years.
I not have 3 years on my 2015 with no signs of either battery giving a problem. The original batteries are 84 month warranty for what it is worth.
I not have 3 years on my 2015 with no signs of either battery giving a problem. The original batteries are 84 month warranty for what it is worth.
Lead Driver
Joined: Feb 2005
Posts: 7,955
Likes: 2,659
From: The Great State of Texas
On my '12 6.7 PSD I've replaced the batteries once. On my 05 6.0 PSD I would replace the batteries every 1.5 years which wasn't too bad since they failed before the warranty expired. Having said that you could pretty much mark the calendar when a new set would fail and plan ahead.
Hotshot
Joined: Jul 2005
Posts: 13,834
Likes: 26
From: Middle Tn.
On my '12 6.7 PSD I've replaced the batteries once. On my 05 6.0 PSD I would replace the batteries every 1.5 years which wasn't too bad since they failed before the warranty expired. Having said that you could pretty much mark the calendar when a new set would fail and plan ahead.
More Turbo
Joined: Aug 2002
Posts: 538
Likes: 45
From: Lansing, MI
I'm at 6.5 years on my original batteries. The passenger side battery has leaked a few times and the indicator shows black. I'm in a northern climate which I'm sure helps some as heat is one of you battery's worst enemies. I'm keeping an eye out for a sale at Sam's Club and plan on installing some new batteries before the snow falls.
