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Dead 12 Volt Battery - 2013 Fusion Hybrid

12 volt battery starting problem

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276 replies to this topic

#41 OFFLINE   B25Nut

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Posted 01 April 2013 - 06:45 PM

For the past month I've been getting the Battery Saver message almost constantly, so last week I had my dealer check it out.  I have put my 12v on a trickle charge twice with the BS message coming back in two days, so when the dealer said they just charged the battery and it was fine, I was a little upset.  But I'm glad I didn't make a big issue of it.  The message has not been seen for a week now, and I am now getting 2 mpg better mileage.  On my 600+mile trip this past weekend, the HV SOC rarely got below 70% unless I intentionally drained it going up a grade.  My FFH was more effecient while cruising in the 65-70 mph range.

Before the trip I did increase the tire pressure from 34 psi to 39 psi, and the temperatures while driving ranged from 52-65 degrees, so these may be a factor, but seeing my lifetime average now at 37.5 instead of the 35.4 from two weeks ago makes me feel much better.  I have a feeling the dealer did more than just charge the battery, since they had it all day.


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#42 OFFLINE   GrySql

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Posted 01 April 2013 - 08:30 PM

B25Nut, that is good news!  :)


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#43 OFFLINE   gkinla

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Posted 14 April 2013 - 09:35 PM

With my 2013 Fusion Hybrid I had been having the same battery saver messages appear and two weeks ago it happened every time I put the ignition in accessory or pulled the key. The dealer had been trying to find a solution and was puzzled. I tasked my service advisor to find a solution. One week later he called me and told me to bring the car in to replace the 12 V battery. This was after the battery checked out from previous visits. He spoke with the hybrid tech at some length, the tech had learned that replacing the 12 V battery was the solution. It's been one week since the replacement and the problem hasn't repeated. I hope this was the final cure.

#44 OFFLINE   corncobs

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Posted 15 April 2013 - 08:05 PM

Here is something I have learned today even after reading the FFH manual twice.

 

!!!The 12V DC Power Points in our cars are not turned off after you shut off the car!!!

 

As stated on page 144 of the manual if you have something plugged in it will continue to discharge the battery.

 

I was wondering about the 12V plug I had in my front power point for charging my phone still showing the little blue light after turning off the car. Today was even more obvious since I connected my ambient lighting to the power point in the center cubby and they wouldn't turn off after parking the car. I'm not sure what the deal was yesterday when I wired it but I could swear they turned off when turning off the car.

Anyway I didn’t do anything about the fact and let things go there way I kept checking and the lights turned off after a few hours.

 

The car started fine but after reading all the reports about the “Battery saver message” and the window one touch up functionality being lost I checked the windows leaving work and to no surprise the windows didn't work anymore. Luckily being knowlegable enough thru this forum I reset the windows and everything is fine again.

Now I also know why I had the window problem before; the little USB charging plugg was draining my battery.

 

Some; maybe all of you might say what a fool but I want my foolishness be a warning to everyone else maybe seeing similar behavior.


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#45 OFFLINE   acdii

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Posted 15 April 2013 - 09:45 PM

I dont see any fools here! :)  Good detective work though.  In the 10 the power point does shut off, so I was surprised by your finding.


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#46 OFFLINE   neod192

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Posted 16 April 2013 - 09:27 AM

I thought that accessory power does shut off after 10 minutes or so.


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#47 OFFLINE   corncobs

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Posted 16 April 2013 - 09:55 AM

No not really and I thought the same. From what I have "tested" it was more like two hours and it might depend on the load. Based on what I saw yesterday I would guess that higher loads lead to faster discharge lead to faster battery saver shut down.
BTW the 110V outlet is shut down as soon you open the door just like the radio. That's what I'm currently using to power my ambient lights ;-))
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#48 OFFLINE   gkinla

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Posted 16 April 2013 - 10:09 AM

After reading the new posts this morning, I went out to look into the car and see if the indicator light was on on the 12v to USB power adapter, it was off. I opened the door the light stayed off until I turned the key. After turning off the engine, leaving the car and locking the doors, the light on the 12v port stayed on, I kept checking every 10 minutes, after one hour the light finally turned off.

I use an old iPhone as a iPod and it is continuously plugged into one of the USB ports in the center console. When I get into the car I can hear the double buzz when the power is applied to the iPhone, this is before I turn the key, so I know this port is dead until I open the door.

I also noticed that the 112v power port shuts off as soon as the door is opened.

#49 OFFLINE   B25Nut

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Posted 16 April 2013 - 05:55 PM

Would a flash drive constantly plugged into the USB have any significant voltage drain?



#50 OFFLINE   fusionTX

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Posted 16 April 2013 - 07:23 PM

Would a flash drive constantly plugged into the USB have any significant voltage drain?


A friend of mine who has a Prius was constantly having problems with his 12 volt battery. He finally was fed up and took it to the shop and had them keep it for several days, so they could see the battery would drain on its own. It turns out he had a flash drive connected to a USB port that was draining his battery. It didn't hurt too much when he drove it every day, but every time he left it at the airport, it would be dead when he came back.
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#51 OFFLINE   gkinla

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Posted 16 April 2013 - 07:24 PM

With my experience using the iPod and hearing the double buzz when I open the door, I believe the USB port is dead until the door is opened...so no voltage drain until the door is opened.

#52 OFFLINE   acdii

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Posted 17 April 2013 - 08:12 AM

On the Prius it probably has the USB powered on at all times, but the Fusions power down after a while. I had put my nearly dead Iphone on the USB to charge it in the car, and when I got back in the car a few hours later, the phone didn't have a charge on it, so the port does shut off. 


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#53 OFFLINE   shaggy314

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Posted 17 April 2013 - 03:09 PM

A friend of mine who has a Prius was constantly having problems with his 12 volt battery. He finally was fed up and took it to the shop and had them keep it for several days, so they could see the battery would drain on its own. It turns out he had a flash drive connected to a USB port that was draining his battery. It didn't hurt too much when he drove it every day, but every time he left it at the airport, it would be dead when he came back.

 

Trying to talk this out... Why would a USB flash drive drain the battery, especially a huge car battery? It's a flash drive, so no power is required with the MFT system off. The car isn't actively accessing it, it's drawing now power. The drive is solid state. Now if it was a USB powered HDD, then sure, it's spinning it. I have a difficult time believing a flash drive, not being accessed, to could draw any significant power, much less drain a car battery.

 

I am not not doubting your finding, but there has to be more to the story. I suspect some flaky Ford (or Toyota) firmware, but the car shouldn't be seeing the device. It'd be like a USB flash drive plugged into a laptop that was off was killing its battery.


Edited by shaggy314, 26 April 2013 - 09:10 PM.

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#54 OFFLINE   hermans

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Posted 17 April 2013 - 04:14 PM

The 12v batteries in the '13 are pretty small, that's the problem. They are only 390 amps and the ICE needs to be running for it to charge. People like me who are getting the high gas mileage - their battery is only charging 50% or less of the time. Mine had to be replaced and this one looks like it won't hold up. This would be my third battery, including the one that came with the car.


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#55 OFFLINE   B25Nut

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Posted 17 April 2013 - 05:43 PM

Last night when I got home I turned the key off, opened the door, then closed it.  The blue light in my FD when out at the same time all the interior lights faded out.



#56 OFFLINE   lolder

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Posted 17 April 2013 - 07:17 PM

In the 2010, the accessories stay on for 10 minutes or until you open a front door.



#57 OFFLINE   lolder

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Posted 20 April 2013 - 10:16 AM

The 12v batteries in the '13 are pretty small, that's the problem. They are only 390 amps and the ICE needs to be running for it to charge. People like me who are getting the high gas mileage - their battery is only charging 50% or less of the time. Mine had to be replaced and this one looks like it won't hold up. This would be my third battery, including the one that came with the car.

The 12 vdc battery is charged whenever the car is "on". The ICE does not have to be running.


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#58 OFFLINE   gkinla

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Posted 23 April 2013 - 05:47 PM

Update to this topic.

It's been two weeks since the 12v battery was replaced and no BS notices. Changing the battery seems to have solved the BS problem.
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#59 OFFLINE   shaggy314

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Posted 26 April 2013 - 09:11 PM

That was solving it on the CMax's too...


178794.png178796.png

 

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#60 OFFLINE   spaceship

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Posted 30 April 2013 - 08:08 AM

Yesterday, I got in my car and it was DEAD.  Needed a jump to get it started so that I could drive it to the dealer.  I had read posts about Battery Saver messages and mentioned that to the service guy.  They put my battery on a charger for a couple hours and then it tested out perfectly fine.  When I asked why this happened, all they could tell me is that "maybe something was left on".  Isn't this car smart enough to shut things down after you exit?  When I later started my car, I noticed that the clock and seat settings were messed up and had to reset them.  I also noticed that the chime I was hearing every time I turned on the car (sort of a "La Ti Da" x 3 chime) was gone.  I wonder if that chime started about the same time as the Battery Saver messages. ???  Anyway, I'm going to watch for that.  My theory on this whole thing is that the car (computer) is not properly shutting things down upon exit.  I am very good about turning things off before I get out of the car and I do not charge my phone, use USB drives and I don't have a Nav system.  When I turn off the car, I get out. 







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