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Old 03-25-2013, 03:27 AM   #1
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Default Battery issue

Ok on my 2012 I had to have the battery replaced around Christmas. Took to the dealer and they replaced it under warranty.

About 12,000 miles later the message center is giving me the same messages, and now I have another bad battery. This time I am not in warranty. I now have about 42,000 miles on the truck.

It seems strange to me to be having another bad battery so quick but I guess anything is possible.

My question is would anyone have any idea if there could be something drawing power that needs to be fixed that is causing the battery to go down. I really don't want to just replace the battery without addressing an underlying issue, just to end up having to replace it again in the near future.

The alternator is charging and the tuck doesn't sit still much, and also very rarely do I turn the key to the on position without actually starting the truck, if I do it is just to roll the windows up or down.

I do realize there could be a thousand different things causing this kind of problem, but maybe someone had a similar problem and was taken care of and would give me a place to start looking.

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Old 03-25-2013, 09:21 AM   #2
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Just to clairify, the battery is running down with the truck running or off? Have you done any mods to the truck? Power running boards? Quick guess would be the battery. I've had bad luck with Ford batteries in the past.
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Old 03-25-2013, 11:52 AM   #3
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I'm having the same issue. The battery should still be under the new battery warranty. They replaced mine with a Motorcraft 650cca that has a 3 yr unlimited/100 month pro-rated warranty. It's only been a month but it drops to 9.5v when loaded.
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Old 03-25-2013, 12:27 PM   #4
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the battery is staying charged when the truck is running. It is only when I shut it off that I get the message.

No mods
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Old 03-25-2013, 12:32 PM   #5
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ive had my truck for just under 2 years now, and my battery is shot too. Things starting to leak acid and corroding the crap outa my terminals. I keep having to clean em.. Coppers already showing on my + Terminal.
How longs the warranty on the OEM battery? It'd be nice if they replaced it under warranty.
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Old 03-25-2013, 12:35 PM   #6
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Is the message your getting "Turn power off" or "Low battery"? If it were mine, I would hook up a voltmeter when I got home for the night and I would go back out the next morning check it again. If you have a significant drop, I would say you either have a draw somewhere or a short.
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Old 03-25-2013, 01:03 PM   #7
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Quote:
Originally Posted by lambo2936 View Post
ive had my truck for just under 2 years now, and my battery is shot too. Things starting to leak acid and corroding the crap outa my terminals. I keep having to clean em.. Coppers already showing on my + Terminal.
How longs the warranty on the OEM battery? It'd be nice if they replaced it under warranty.
It should be covered under your 3yr/36k mile warranty.
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Old 03-25-2013, 01:07 PM   #8
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Quote:
Originally Posted by Jbb1970 View Post
the battery is staying charged when the truck is running. It is only when I shut it off that I get the message.

No mods
The alternator runs electronics and charges the battery when your truck is running.


Quote:
Originally Posted by Shaggy1970 View Post
Is the message your getting "Turn power off" or "Low battery"? If it were mine, I would hook up a voltmeter when I got home for the night and I would go back out the next morning check it again. If you have a significant drop, I would say you either have a draw somewhere or a short.
Wait 15 mins for the battery to stabilize before taking the reading at night. It should be 12.4v or higher (up to 13.2v). If it's below 12.3v, it's bad.

You can also check for parasitic drain by disconnecting the neg cable and put a DMM between the post and cable. Set the DMM to Amp to see how much power is being drained while the truck is off.
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Old 03-28-2013, 12:48 PM   #9
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It is definitely drawing power from somewhere. Took it to the dealer to see if they would take care f it since they obviously missed something previously, but they said no now that it is out of warranty, it is my problem. So I went the next day to a different dealer and traded it in for a 2013 F150.

I actually went to the different dealer to see if they old give any help but before I got there I saw a truck on the lot that caught my eye and the rest as they say, is history.

As soon as I can I will post some pics of the new one.

Thanks for all the replies!
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Old 03-30-2013, 02:25 PM   #10
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Update:

I took my truck to the dealer since the weather sucked and they tested the new battery and came back fine on their fancy test machine.

Yesterday, the weather warmed up so I decided to test some more stuff. I connected a DMM between the ground post and connector and started pulling fuses in the engine bay and no change. Then I went to the kick panel and noticed the #48 relay wasn't seated completely so I pushed it in and all the draw stopped.

I'll talk to my dealer and ask for a new relay just in case but so far, it looks good.
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Old 03-30-2013, 02:25 PM
 
 
 
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