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Battery Problem

willives

Active Member
Apr 20, 2008
94
0
Wiltshire or Spain
I got to work this morning and when I pulled up, the engine sounded terrible, it was chugging away.

I checked under the bonnet and found the fuse from the alternator supply was blown.

I changed the fuse, but when started, the alternator was constantly pushing out 60A into the battery. This caused the fuse to blow and the wire got really hot. When all the electrics were turned on in went up to 80A.

After checking all the other cables, I fitted a new battery, and the current drops back to around 8A after a few seconds and it works perfectly.

Do you think the resistance in the battery has dropped too low and that is why its continually feeding a high current?

I unfortunatley bought it from Halfords about a yaer ago. Its still got 3 years left on its guarantee, but I don't know if Halfords can check stuff like that.
 

Andrewcupra TDI

Resident Desk Jockey
Apr 30, 2008
3,282
2
in the mountains ( Wales )
take it back , they have some testing equipment if you act dumb and say it doesnt hold charge they should replace for you

on the other hand it mite be worth getting someone in the know or an auto elctrician , as it could be a problem somwhere on the car
 

willives

Active Member
Apr 20, 2008
94
0
Wiltshire or Spain
I work with an auto electrician and he checked the car over and concluded it was the battery. Since fitting the new battery its been fine. I am going to replace the charge cable as it got so hot it started to melt, plus the plastic fuse box casing is melted as well.

The battery holds charge when disconnected, its just when its receiving a charge it overcharges and draws too much current.

I'm going to try and get a refund, as I don't need a replacement battery anymore.

Hopefully I won't have to argue too much, but knowing Halfords I probably will.
 
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