Retro-gone. Posted January 9, 2009 Report Posted January 9, 2009 my battery is draing completely overnight, im defo not leaving anything on like the ignition or interior light and the battery itself is not at fault, i dont know where to start looking.
SmokeEm Posted January 9, 2009 Report Posted January 9, 2009 You need to get an ammeter on it mate. Measure the stable voltage with everything off and then remove one fuse at a time and see which circuit is draining it. Just a thought but when this happened to me it was the boot interior light staying on all the time.
Retro-gone. Posted January 9, 2009 Author Report Posted January 9, 2009 i dont have a boot light, nor an ammeter, what i have found is a live wire to the horn resting on the body, but i wouldnt think this would cause it as the horn button has to be pressed in to activate the live doesnt it? electrics arent my strong point
SmokeEm Posted January 9, 2009 Report Posted January 9, 2009 IIRC it's the earth that activates the horn so the live is permanant. Could be that simple
Retro-gone. Posted January 9, 2009 Author Report Posted January 9, 2009 ahh, ok im chargin the battery so il see how it goes, the live was litterally on the bodywork and its left a little scar!
OldskoolSue Posted January 9, 2009 Report Posted January 9, 2009 Is your fan belt tight enough? that is if you are driving it of course mine drained the other day and was due to a loose fanbelt
bortaf Posted January 9, 2009 Report Posted January 9, 2009 A loose fan belt will not drain a battery, it will make the belt sqeek and so limet the amount of charge the alt will produce is all As a simple check take the earth off the batt and when you put it back on see if there is a spark as it touches the neg post, if there is there is a drain, remove the fuses one at a time till the flash stops, then you have found the fuse that feeds the drain best to disconnect the clock first , that basicly the only constantly live curcuit on the car or should be.
Retro-gone. Posted January 9, 2009 Author Report Posted January 9, 2009 thanks bortaf, il check when the battery has recharged
Supercharged Nat Posted January 9, 2009 Report Posted January 9, 2009 if the battery is good condition and fully charged but drians over night then it could be the alternator gone. the diode bridge inside breaks down causing the battery to drain through the alternator.. it could be a dead cell in the battery though- assuming you can definately confirm its in good condition. to proove it do a drop test on the battery- a local garage should be able to do it for you- beer money.
Retro-gone. Posted January 9, 2009 Author Report Posted January 9, 2009 new alternator, 6 month old battery, one thing ive noticed id i dont seem to have a charge light on the dash, doesnt come on at all, could it be a faulty alternater even tho its new?
mk1super Posted January 9, 2009 Report Posted January 9, 2009 new alternator, 6 month old battery, one thing ive noticed id i dont seem to have a charge light on the dash, doesnt come on at all, could it be a faulty alternater even tho its new? Mate just cause its new dont mean it isnt broken as i was told when i had similar issues, turned out alt was nackered and drain was the radio.
Retro-gone. Posted January 9, 2009 Author Report Posted January 9, 2009 ok ta, altho its seems to be holding charge now.. il know better in a few hours.
2.8i Cossie Posted January 9, 2009 Report Posted January 9, 2009 cold weather can also zap a battery as i have discovered but i would have guessed it was the wire hope you get it sorted !!
emu Posted January 9, 2009 Report Posted January 9, 2009 new alternator, 6 month old battery, one thing ive noticed id i dont seem to have a charge light on the dash, doesnt come on at all, could it be a faulty alternater even tho its new? Please dont discount components just because they are new. Its easy enough to do I know, but then you spend ages looking for a fault which is due to a part that you presumed was ok. Get yourself a multimeter though, even with a limited knowledge of electrics they come in so useful especially if you have a wiring diagram for your car too. You dont have to spend much and you dont need anything special. The ones I buy for at home are about a fiver from 'The Range'. Its plenty accurate enough for general fault finding and when you drop it in a bucket of oil/ tea you dont really care You can get basic ones even cheaper on fleabay.
Retro-gone. Posted January 9, 2009 Author Report Posted January 9, 2009 thinkits ok now thanks mate, il know better in the morning
emu Posted January 9, 2009 Report Posted January 9, 2009 fingers crossed for you Engine bay looks spot-on by the way
Retro-gone. Posted January 10, 2009 Author Report Posted January 10, 2009 defo sorted, still a full charge in her this morning, must have been that horn wire touchin the body
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