help needed battery keeps draining over night :(

[adam661]

as above really battery keeps draining over night or wen left with car off

ive tried leaving the battery disconnected over nite and it seems 2 hold a charge but if left connected it drains

took earths off and cleaned/ replaced.

car doesnt cut out wen driving so im guessing the alternator is ok?
also tried seein if the + sparks when the keys not in ignition and it doesnt?

any ideas?????

[Cutz]

Dead battery, im off to buy mine now, £36.99, lol

Cutz

[adam661]

what even tho it holds charge over nite wen its not connected?

[Steveman]

Sounds like you may have a faulty electrical connection somewhere which is draining the battery. You say the battery doesn't drain when it is not connected which suggests that something somewhere in the car is still drawing power when the engine is switched of.

To trace the offending electrical device you'll need a muiltmeter and a lot of patience as find it is trial and error.

[adam661]

yhh thats what ive been told i have noticed when wheels on full lock the headlights dim???? could this be related?

[sammy90]

ive had this problem i thought it was my amp but it was just the cold weather killed my battery. i put a spare on now it fine.

[LDeere683]

i had this problem, it was my amp that kept draining it before as my remote wire was not in properly

[Mike_420]

Originally Posted by adam661

yhh thats what ive been told i have noticed when wheels on full lock the headlights dim???? could this be related?

that is due to the power from the power steering pump so ive been told, as it uses quite a bit of battery power

[adam661]

Originally Posted by LDeere683

i had this problem, it was my amp that kept draining it before as my remote wire was not in properly

ive had the power off from the amp over night and the battery still drained so it cant be that surly???

[Cutz]

Well i had this problem, didnt try disconnecting, just didnt lock the car up and it was fine. But all sorted as i bought a new battery. Get it tested at a garage.

Cutz

[addyt_vtr]

i would get your battery tested mate

[adam661]

yhh think i may well do lol

[RichyBoiVTR]

if you got tune in the boot its more than likely a killed battery i used to have this a lot with all my other cars.....

[squeaky]

i had the same problem so i disconected the black alarm box under the dash and that sorted the problem straight away, but it could also be a bad earth from the alternator etc ...

[Meto]

Could be the boot light... You'll see if its on through the gaps in the parcel shelf.

[saxojh]

If it drains only when connected to the car then i would say it quite possibly a bad earth. This happended to a mates gti and it turned out to be a bad earth. Have a check of them and spray them with wd40. Helps the connection out.

[mickyfinn]

mine does the same thing but only in the cold weather totally lame freezing cold and i got to mess about with jumpleads

[deks36]

had this with my neighbours car disconnected boot light problem stopped so might be worth a try on yours

[vtcarl]

mine this morning was not far off dead. had to use the jump leads to start it and now i have the engine managment light on. any ideas what will of caused it?

[123-samsung123]

You need to disconnect the negetive lead on the battery terminal, using a amp meter/voltmeter, reconnect the battery negetive lead inline with the amp/voltmeter. Now check the amp drain from the battery, 0.03 to 0.10 good no drain. if its reads 0.50 to 1.00 you have a cosumable draining the battery! Then you need to find it. Look at all radio/amps etc, make sure no interior lights are staying on. If all ok, You need to start pulling fuses from the fuse boxes whist watching the ampmeter when the reading drops to 0.03, You know what curcuit in the vehcle the drain is on. Hope this helps. You could just have a simple battery fault, have you cleaned all the terminals, earths etc?