battery discharging - Ford B-Max Forum
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post #1 of 41 (permalink) Old 11th November 2014, 18:02 Thread Starter
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has anyone had problems with their battery on b max discharging, mine is two years old and for the past few days I have had trouble starting the car, sunday battery was dead, charged over night and next day dead as a doe doe. A chap from the aa said he has heard their is problems with the sync on b max and fiesta and for some reason if someone walks by the car with Bluetooth on it 'wakes the car up' and starts the battery discharging!!! any thoughts, I took it over to garage who basically charged the battery and said they couldn't find a problem.[img]smileys/smiley24.gif[/img]
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post #2 of 41 (permalink) Old 12th November 2014, 11:14
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Not convinced by the AA explanation. If it's not done it for thetwo years before now then there is a fault. On an older car I would suggest the obvious such as the alternator not charging or a failed battery cell.

Spurious battery drains can be a pain to trace

Dagenham Dave does Cornwall - 1.0 Zetec 100PS Frozen White registered 30th January 2014
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post #3 of 41 (permalink) Old 12th November 2014, 11:57 Thread Starter
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Bit of a concern, as I have a year left on the warranty........love the car but been back and forth to the garage more with this car than any I have ever had
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post #4 of 41 (permalink) Old 19th November 2014, 23:11
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My brand new bmax titanium discharged overnight ,aa reported possible computer fault ,garage checked it over and discussed ,ford said they were aware of problem and working on a fix, they told garage to disconnect Bluetooth and auto lights, it appears ok but I want my Bluetooth back, suggestions plead
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post #5 of 41 (permalink) Old 19th November 2014, 23:12
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Please instead of plead
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post #6 of 41 (permalink) Old 20th November 2014, 21:08 Thread Starter
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Ha sounds like what happened with mine, garage just charged it up again but aa man told me it was a known fault with b max and fiesta and yes something to do with Bluetooth, said to turn my Bluetooth off every time I leave the car but if someone walks by with Bluetooth on their phone my car battery will start discharging.....still holding charge, so far.....but not a happy bunny
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post #7 of 41 (permalink) Old 23rd November 2014, 11:15
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My bmax is 3 months old battery has discharged 3 times ,the first two times I connected a jump battery and away it went,the third time I could not get into the car so I had to use the emergency key tried to jump the car again but to no avail ,dash lights went bonkers,(and so was i ).took car to garage I was told that the boot catch was telling the computer that the boot lid was open and the boot light was on and it was discharging the boot was not open several faults were found,garage told me that ford were aware of a problem and that was it.
If any one has had this problem please post and if known what is fix.
Derek Edited by: derek.barbour
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post #8 of 41 (permalink) Old 24th November 2014, 15:49
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I'm thinking it would take more than a boot light left on to discharge the battery wouldn't it?
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post #9 of 41 (permalink) Old 25th November 2014, 18:17
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Re Kaygee entry. My 15 month old Titanium was running well until this morning. It had a flat battery. AA took 3 hours to come and tell me that, but were not prepared to comment or find out about possible bluetooth connection - or other likely cause.

It may be a coincidence, but I had, last night, for the first time ever, switched on bluetooth on my phone and computer to try and copy some photos. It found "sync" which I ignored. (I could not copy the photos either.)


Car now works. Thanks to this forum I will not be touching bluetooth again!

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post #10 of 41 (permalink) Old 25th November 2014, 18:46
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Terence, I suspect your car was trying to connect to your phone all night. Had you paired with it your car would have stopped searching.
I have used Sync and Bluetooth from day one with no issues

Dagenham Dave does Cornwall - 1.0 Zetec 100PS Frozen White registered 30th January 2014
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