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Dead battery

activeuk

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Just gone to go for a driver after week to give the car a run and the battery is dead. Nothing left on etc any ideas what it may be?
Also any good jump leads in case it does it again the ones i have are to short just waitng for the AA to start it up
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SSC

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I used to leave mine for a week ofter without starting it, never had an issue, but there was a member had that issue you got too. Was a feed on the forum a whiles back
 

Zerocool

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I had the same issue after two and a half weeks of not moving. Am lead to believe it's the alarm system. Search for the other thread on it!
 

Cati

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Cold weather, ancillaries like alarm and dash cam hard wired and not used = flat battery
 

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Spider

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Nah charge should last for weeks regularly leave cars in airport car parks for long periods
 

slowhand99

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Just gone to go for a driver after week to give the car a run and the battery is dead. Nothing left on etc any ideas what it may be?
Also any good jump leads in case it does it again the ones i have are to short just waitng for the AA to start it up
It is possible to restart the sound system after it times out and the car is off; maybe this?
Halfords do some heavy duty jump leads, good length and really flexible but heavy, and not cheap.
 

blueboy

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Started it yesterday for the first time in two weeks. started fine, brakes seemed to stick briefly though.
 

SSC

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Started it yesterday for the first time in two weeks. started fine, brakes seemed to stick briefly though.
That's usually the handbrake, I always leave it off if parking car for while, auto goes in park mode, manual in gear )
 

Actual

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Due to the cold and wet conditions I have driven my Mustang just 3 times in the last 3 months and have only done short journeys around the local area.

I do have a dashcam with parking mode which switches off when the battery voltage drops to 11.6 Volts which is the lowest voltage but seems to only give about 4 hours parking time for me (although others say they can run their parking mode for days).

I just went out and checked the battery voltage on the dashboard display and it was only 10.7 Volts so with some trepidation I pressed the start button and the engine roared into life :)


The lowest I have observed is 10.1 Volts and I have been preserving voltage by avoiding performing unnecessary start ups so that was a leap of faith.

So how low can you go? (and still start)
 

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christianUK

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goldengooner

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Due to the cold and wet conditions I have driven my Mustang just 3 times in the last 3 months and have only done short journeys around the local area.

I do have a dashcam with parking mode which switches off when the battery voltage drops to 11.6 Volts which is the lowest voltage but seems to only give about 4 hours parking time for me (although others say they can run their parking mode for days).

I just went out and checked the battery voltage on the dashboard display and it was only 10.7 Volts so with some trepidation I pressed the start button and the engine roared into life :)


The lowest I have observed is 10.1 Volts and I have been preserving voltage by avoiding performing unnecessary start ups so that was a leap of faith.

So how low can you go? (and still start)
I have noticed with my F750 dashcam front and back, after a few hours the lights will go off on the actual cameras, but it will last for 48 hours.
Over the past 2 months have only used the car at the weekends and that's only 15mile journeys and not at all during the week, but have been keeping a eye on the voltage on the info screen. drops to 11.7 from 14.
And I have stopped using the RS if i am not going to go for a drive.
 

deep south

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That happened to me before Christmas as well. Hendy Fareham tested it and said "needs replacing under warranty but we don't have one" so I said "& I will get Hendy Eastleigh to do it when it gets serviced ina few weeks" and arranged it all when I made the service booking.

Whe. I went to pick it up, Hendy Eastleigh had not done it and gave me a great explanation of why they could not due to the Ford warranty process.

So I can only wait for it to happen again and the AA can trailer it to them to sort it...
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