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2001 Corsa possible battery drain
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ConnorS
New User
Apr 17, 2013, 3:48 PM
Post #1 of 4
(1464 views)
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2001 Corsa possible battery drain
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Hey there,
I've been having problems with my car battery, it kept dying on me it got to the point were I needed a jump start each day; the Battery would die in about 20 hours after the jump start. ( I added this in case it might be relevant).
So I bought a new battery and everything was fine for a week, worked great. But I got in my car 2 days ago (after 4 days of not using) and it was dead again. My battery was reading about 6-7v (it's a 12v battery) so I decided to charge it, but the time I get it to my room to charge the battery it was already 100% charged. :s
Turns out, whenever I connect the battery to the car the voltage of the battery drains instantly (less than a second) to bout 6-7v. If I unplug the battery from the car I can use my multimeter and the voltage slowly recharges back to 12v.
I left the battery connected overnight and all day and today it read 2-3v and again when I disconnect the battery it slowly goes back up to 12v.
I was thinking it was parasitic drain? Can I simply pull fuses out while checking the voltage of the battery? Surely if I pull the correct one, the voltage should start to increase as the drain would be gone?
I'm terrible with cars, I wonder if you guys can help me?
Thanks.
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Hammer Time
Ultimate Carjunky
/ Moderator
Apr 17, 2013, 4:07 PM
Post #2 of 4
(1455 views)
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Re: 2001 Corsa possible battery drain
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It's not draining instantly. It was never charged in the first place. You have a parasitic draw that will have to be tracked down. Check the obvious stuff first like trunk light, glove box light, hood light or any other interior lights.
There is a procedure for finding a battery draw like that.
You will need a digital ammeter and a jumper wire with clips on the ends to do this.
First rig any door switches so you can have a door open without triggering the interior lights and unplug the hood light. Remove one battery cable and attach the meter in series between the battery cable and battery post. Take the jumper wire and also attach it the same way. Leave the jumper wire on for at least 10 minutes to expire all the automatic timers. Now remove the jumper wire and read the meter. Anything over 50ma is too much draw. The way you locate this is to start removing fuses one at a time until the meter drops to normal level. This will be the circuit with something staying on. Determine what components are part of that circuit and check them individually until the problem is isolated.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Hammer Time
Ultimate Carjunky
/ Moderator
Apr 17, 2013, 4:35 PM
Post #4 of 4
(1436 views)
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Re: 2001 Corsa possible battery drain
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That is not a measurement of the amount of charge. You need to charge that at a rate of about 10 amps for multiple hours.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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