Pearl
Posts: 283
Joined: Wed Apr 13, 2016 3:24 am
Location: Northeast Ohio

12V Battery Replaced

Thu Aug 24, 2017 10:16 am

I've had my CPO 2013 FFE for 17 months now. Never a lick of a problem with it. I had been having some annoying "Key Not Found" messages when trying to start the car for a few weeks. I assumed it was a nearly 5 year old Key Fob battery dying. It happened in both key fobs. I put off changing the coin cell batteries in both fobs. Yesterday, for the first time, I get a text message that the 12V battery is low, and please plug in the vehicle. I get out to the car about a half hour later, and it is totally dead, no dome lights, not instrument cluster, nothing. The battery voltage is about 6.5V, I plug it in to L1 EVSE. This morning, still dead, battery voltage dipped to under 5 volts.
I went over to a Ford Dealer, and bought a new battery (BXT-67R). Easily changed out the battery in about ten minutes. Everything is back on.
My build date is October 2012, so this seems reasonable for the original 12V battery to last nearly 5 years.

This was by far the easiest battery swap I have done in my entire life. No corroded terminals, no non-budging bolts, it wasn't snowing, or raining, or 10 degrees out. I'm quite happy with how it worked out.

The only part that puzzles me, is the very late "low battery" warning. It really didn't give me sufficient time to replace the battery before it had a fatal error.

In hindsight, I thing the inability to communicate with both key fobs aver the past few weeks should have been my warning that the battery was dying.
2013 Focus Electric
2013 C-Max Energi
2013 Escape

campfamily
Posts: 451
Joined: Tue Apr 21, 2015 8:07 am
Location: Southern California

Re: 12V Battery Replaced

Thu Aug 24, 2017 12:04 pm

Pearl wrote:I've had my CPO 2013 FFE for 17 months now. Never a lick of a problem with it. I had been having some annoying "Key Not Found" messages when trying to start the car for a few weeks. I assumed it was a nearly 5 year old Key Fob battery dying. It happened in both key fobs. I put off changing the coin cell batteries in both fobs. Yesterday, for the first time, I get a text message that the 12V battery is low, and please plug in the vehicle. I get out to the car about a half hour later, and it is totally dead, no dome lights, not instrument cluster, nothing. The battery voltage is about 6.5V, I plug it in to L1 EVSE. This morning, still dead, battery voltage dipped to under 5 volts.
I went over to a Ford Dealer, and bought a new battery (BXT-67R). Easily changed out the battery in about ten minutes. Everything is back on.
My build date is October 2012, so this seems reasonable for the original 12V battery to last nearly 5 years.

This was by far the easiest battery swap I have done in my entire life. No corroded terminals, no non-budging bolts, it wasn't snowing, or raining, or 10 degrees out. I'm quite happy with how it worked out.

The only part that puzzles me, is the very late "low battery" warning. It really didn't give me sufficient time to replace the battery before it had a fatal error.

In hindsight, I thing the inability to communicate with both key fobs aver the past few weeks should have been my warning that the battery was dying.
The 12V battery on my 2015 FFE just gave out. I received the text message about a low battery, and my car was also completely dead; couldn't even open the door without using the blade key. I would hook up my 12V jumper battery and everything came back alive. I noticed that the 12V battery had to have some sort of charge before my car would begin charging from either my L2 EVSE or L1 EVSE.

Replacing the battery (covered under warranty) fixed the issue.

Keith
GONE - 2015 FFE, Magnetic with leather interior, debadged & tinted
38,500 miles (since May 2015), average 246 Wh/mile

REPLACED WITH - 2018 Tesla Model3, LR RWD, Obsidian Black
20,000 miles (since Nov 2018), average 235 Wh/mile

triangles
Posts: 1118
Joined: Tue Aug 16, 2011 11:40 am
Location: Toledo, Ohio

Re: 12V Battery Replaced

Fri Aug 25, 2017 11:48 am

Did you try to recharge and test the battery before replacing it? My car has randomly gone dead (as in 7v) in as little as 4 hours. Yet it tests ok when I have the battery charged and tested. Yeah and everytime I've gotten the 12v low text it's always too late. There seems to be something that randomly doesn't shut down in these cars and ford has no way of diagnosing the problem.
2014 Blue Candy FFE
http://www.fuelly.com/car/ford/focus/2014/triangles/303811 (since this forum doesn't allow BBcode in sigs)

Pearl
Posts: 283
Joined: Wed Apr 13, 2016 3:24 am
Location: Northeast Ohio

Re: 12V Battery Replaced

Fri Aug 25, 2017 12:54 pm

triangles wrote:Did you try to recharge and test the battery before replacing it?
Yes, but it never got back past 7 Volts or so. Totally dead. It was nearly 5 years old, so it's not unusual.
2013 Focus Electric
2013 C-Max Energi
2013 Escape

triangles
Posts: 1118
Joined: Tue Aug 16, 2011 11:40 am
Location: Toledo, Ohio

Re: 12V Battery Replaced

Fri Aug 25, 2017 6:12 pm

Did you unhook the battery from the car to charge it? first time mine went dead I burned up a charger trying to charge the battery because the car was trying to run a coolant pump or something. I guess motorcraft batteries are not what they used to be. my first motorcraft lasted 10 years. my second motorcraft I replaced at 9 years and was still working a year later when I sold my 68 VW that I had put it in as a temporary battery. I don't think I've ever gotten less than 8 years out of a battery. I guess I've just been lucky.
2014 Blue Candy FFE
http://www.fuelly.com/car/ford/focus/2014/triangles/303811 (since this forum doesn't allow BBcode in sigs)

davideos
Posts: 409
Joined: Mon Jan 21, 2013 8:58 pm
Location: So Cal

Re: 12V Battery Replaced

Mon Aug 28, 2017 10:52 am

My 12V battery was dead this morning with 7v :shock:
I jumped it and was on my way. I'm pretty certain the battery is ok...just like triangles, will need to figure out where the draw is coming from.

Pearl
Posts: 283
Joined: Wed Apr 13, 2016 3:24 am
Location: Northeast Ohio

Re: 12V Battery Replaced

Mon Aug 28, 2017 11:24 am

I did not disconnect the battery when attempting to charge, but I believe the battery was dead enough which is why even after overnight charge it would not get up past 7V.

I did not try to jump start the car either, which probably would have worked, and would have only helped me avoid swapping out the battery in my wife's office parking lot.
2013 Focus Electric
2013 C-Max Energi
2013 Escape

campfamily
Posts: 451
Joined: Tue Apr 21, 2015 8:07 am
Location: Southern California

Re: 12V Battery Replaced

Thu Sep 14, 2017 12:14 pm

Carbuff wrote:I have found that the motorcraft 12v batteries are junk. They die mysteriously within 3 years or so. Not covered on a ice vehicle. Ive had 3 die like this on new ford vehicles, relatives have had similar experiences. My new to me 2013 ffe has a brand new motorcraft 12v in it. If it had been up to me I would have replaced it with an aftermarket battery, but the dealer uses motorcraft , so be it. If I end up with any issues related to the 12v battery I will not hesitate to replace it with one from advance auto.
Ditto. My Motorcraft gave up at just over two years. However, I've noticed that with a lot of batteries from various manufacturers. Both of my Nissans ('12 Armada, '00 Maxima) need new batteries every three years, like clockwork. That is true whether the battery is from Nissan, from WalMart, from Costco, or anything else. But, the battery in my 65 Buick lasted almost 10 years. I'm wondering if the constant drain caused by newer cars is the real cause of batteries not lasting as long as they used to.
GONE - 2015 FFE, Magnetic with leather interior, debadged & tinted
38,500 miles (since May 2015), average 246 Wh/mile

REPLACED WITH - 2018 Tesla Model3, LR RWD, Obsidian Black
20,000 miles (since Nov 2018), average 235 Wh/mile

davideos
Posts: 409
Joined: Mon Jan 21, 2013 8:58 pm
Location: So Cal

Re: 12V Battery Replaced

Thu Sep 14, 2017 1:02 pm

Just to follow up, the battery was dead. I thought it would be pro-rated since it was replaced by Ford while under the 36mo warranty 37 months ago, but no, they don't. They only pro-rate if you bought it. So if it died a month earlier, they'd have replaced it for free.

Turns out this battery is an odd-ball. I'd have replaced it with an Interstate battery but you need to order it because the size and configuration is very uncommon. So, I ended up paying $135 at the dealer for a new battery. I charged up the old battery and but a load on it with a meter attached. It only gave 4Ah before the battery dropped to 10.39V and cut out under a 4A load. Then I took the dead battery in for my core deposit.

I was sure to get a clear explanation on how the warranty works. "SAVE THE RECEIPT", that's what my service adviser said..."you'll need it." Which is what I figured. These batteries are bad as mentioned earlier and as previously experienced myself. Anyway, if the battery does go bad, you do need to bring it in with the car so they can check the charging system...that's what they said. I suppose if they "find" an issue, it gives them an opportunity to make some money. I really like Costco's policy...they don't even check. Return the battery no questions asked...but as I said, no one has this size in stock; not even Costco.

So, at first sign of trouble, order your new battery so you don't have to buy another Motorcraft one.

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