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Author retard with jump leads here.
Ben G
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Registered: 12th Jan 07
Location: Essex
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5th May 12 at 17:06   View User's Profile U2U Member Reply With Quote

whilst working on my car, i stupidly left the ignition on for ages with the roof down. this meant a nice flat battery.

went and bought some jump leads as i've never owned any before (first time using them).

joined them up on both cars before starting the fiesta up.

this swiftly resulted in a massive spark and smoked, followed by the jump leads burning the plastic has now melted onto the ends.

what did i do wrong? absolutely shit my pants as the fiesta wouldn't start for a minute or so after and the z4's dash lit up with warning lights.



[Edited on 05-05-2012 by Ben G]
Cole
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Registered: 11th Nov 02
Location: eastbourne Drives:zafira sold now a qashqai
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5th May 12 at 17:10   View User's Profile U2U Member Reply With Quote

Had them connected the wrong way
craig55
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Registered: 12th Jun 10
Location: Bristol
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5th May 12 at 17:10   View User's Profile U2U Member Reply With Quote

You connect them the right way round
Ben G
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Registered: 12th Jan 07
Location: Essex
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5th May 12 at 17:11   View User's Profile U2U Member Reply With Quote

black on neg, red on pos.
Corsa_Sport21
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Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
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5th May 12 at 17:12   View User's Profile U2U Member Reply With Quote

Maybe just because they were new. Kinda like a breaking them in sort of thing.
Cole
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Registered: 11th Nov 02
Location: eastbourne Drives:zafira sold now a qashqai
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5th May 12 at 17:13   View User's Profile U2U Member Reply With Quote

Either that or they earthed out on something
Ben G
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Registered: 12th Jan 07
Location: Essex
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5th May 12 at 17:13   View User's Profile U2U Member Reply With Quote

well they are fucked now bought them from argos, reckon they will take them back if i say they were faulty?
Mike
Organiser: North West and North Wales
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Registered: 20th May 06
Location: nr. Skipton, North Yorkshire
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5th May 12 at 17:14   View Garage View User's Profile U2U Member Reply With Quote

The plastic on both leads has melted?
Dave
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Registered: 26th Feb 01
Location: Lancs
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5th May 12 at 17:16   View User's Profile U2U Member Reply With Quote

You've had them on one of the batteries the wrong way round.
Ben G
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Registered: 12th Jan 07
Location: Essex
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5th May 12 at 17:18   View User's Profile U2U Member Reply With Quote

i'm sure i didn't but may be wrong there was a load of gunk stuff on the neg of the fiesta battery. would that affect anything?

put a pic of the leads in the first post mike.
Matty SRi
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Registered: 3rd Dec 08
Location: Stockton-on-Tees Drives: Mk3 Golf GTi
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5th May 12 at 17:19   View User's Profile U2U Member Reply With Quote

Id suggest you had them on the wrong way round, or connected the wrong 1 first
Mike
Organiser: North West and North Wales
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Registered: 20th May 06
Location: nr. Skipton, North Yorkshire
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5th May 12 at 17:22   View Garage View User's Profile U2U Member Reply With Quote

Shit

Must've been the wrong way round, there's not really any reason for the negatives to burn out otherwise.
Ben G
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Registered: 12th Jan 07
Location: Essex
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5th May 12 at 17:22   View User's Profile U2U Member Reply With Quote

fuck sake

dickhead who had the car before me put the red + cover over the - bit

what a cunt

the car still jump started though which is strange.

[Edited on 05-05-2012 by Ben G]
Dave
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Registered: 26th Feb 01
Location: Lancs
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5th May 12 at 17:24   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Ben G
i'm sure i didn't but may be wrong there was a load of gunk stuff on the neg of the fiesta battery. would that affect anything?

put a pic of the leads in the first post mike.


Someone I know did the same trick trying to jump a van at 4am with the exact same results.
FAZ
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Registered: 24th Nov 07
Location: Coventry
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5th May 12 at 17:25   View Garage View User's Profile U2U Member Reply With Quote

DOESNT THE BATTERY ITSELF HAVE A + / - SYMBOL ON IT?
Ian
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Registered: 28th Aug 99
Location: Liverpool
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5th May 12 at 17:25   View Garage View User's Profile U2U Member Reply With Quote

If both cars still run you've had a lucky escape, that can seriously spoil your day normally.
Ben G
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Registered: 12th Jan 07
Location: Essex
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5th May 12 at 17:26   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by FAZ
DOESNT THE BATTERY ITSELF HAVE A + / - SYMBOL ON IT?


it does indeed i've been working on the car since 1pm, had the roof down so i could move around easier inside. battery died and started to rain, had no leads so had to go and buy some.

rushing things never ends well
Mike
Organiser: North West and North Wales
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Registered: 20th May 06
Location: nr. Skipton, North Yorkshire
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5th May 12 at 17:26   View Garage View User's Profile U2U Member Reply With Quote

Trusting the red cover, schoolboy error
Corsa_Sport21
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Registered: 13th Apr 08
Location: Leven, Fife. Drives : 205 GTi
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5th May 12 at 17:27   View User's Profile U2U Member Reply With Quote

Is the battery in the boot in these cars??
Dave
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Registered: 26th Feb 01
Location: Lancs
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5th May 12 at 17:28   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Ben G
quote:
Originally posted by FAZ
DOESNT THE BATTERY ITSELF HAVE A + / - SYMBOL ON IT?


it does indeed i've been working on the car since 1pm, had the roof down so i could move around easier inside. battery died and started to rain, had no leads so had to go and buy some.

rushing things never ends well




I guarantee you'll check at least three times whenever you jump a car from now on.
Ben G
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Registered: 12th Jan 07
Location: Essex
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5th May 12 at 17:29   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Mike
Trusting the red cover, schoolboy error


won't be doing that again

ian, are there any long term problems after this happens? the fiesta wouldn't start at first but works fine now. the z4 required some revving but now seems fine too.

yes battery is under the boot floor.
Ian
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Registered: 28th Aug 99
Location: Liverpool
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5th May 12 at 17:34   View Garage View User's Profile U2U Member Reply With Quote

No if they run you should be OK.

There was a guy on one of the Fiesta forums killed his ECU, new car as well so nothing second hand, ended up bending over in Fords for a new one.

Would think they're OK, perhaps just lost a bit of memory or something. Not too much to worry about compared to them not starting.
Ben G
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Registered: 12th Jan 07
Location: Essex
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5th May 12 at 17:35   View User's Profile U2U Member Reply With Quote

must have been my lucky day (apart from the rain and roof stuck down)
corsatdi
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Registered: 7th Nov 10
Location: Kent
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5th May 12 at 17:39   View User's Profile U2U Member Reply With Quote

I shot my alternator on my diesel b when I did this!
JaffaTB
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Registered: 7th Oct 09
Location: Sheffield, South Yorkshire
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5th May 12 at 17:43   View User's Profile U2U Member Reply With Quote

reminds me of when i bought a new battery for my DR350 and connected it the wrong way round, a wire burned out straight away but it would still spin the starter motor, the wrong way i decided something had broken inside the casing and had it all apart, was messing with it for hours til i realised what i had done

[Edited on 05-05-2012 by JaffaTB]

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