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Severe battery drain!

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Old 08-28-2008, 09:41 PM
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Dougs951
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Default Severe battery drain!

Hey guys I need some help with a 1987 944 turbo, it seems that I am getting battery drain, from some thing in the car enough so that over night, even with a good drive to charge the battery, it won't start. I pulled the fuses and I am still getting a drain. Any ideas?
Old 08-28-2008, 09:43 PM
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Strike-Force
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Disconnect the negative battery cable when you're done driving it.
Old 08-28-2008, 09:48 PM
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Dougs951
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Will that do any thing to the computer boxes, like on newer cars?
Old 08-28-2008, 11:29 PM
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Jay W
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I put new rear hatch shocks in my car and one of the new ones didnt have the dome light switch in it. Dome light wasnt on all the time but it still drained the battery overnight.
Old 08-28-2008, 11:35 PM
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Yabo
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Did you verify that there is a current draw from the battery (more than just what the clock,etc takes)? It could just be a bad battery, how old is the battery?
Old 08-28-2008, 11:35 PM
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kandyinmyvan
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Check your connections on the neqative cable.
Old 08-28-2008, 11:38 PM
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Spidey944
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If the battery has sulfated plates from being recharged all the time it will drain like you say. How recent is it?? How recent is the issue??? I'd start with a battery drain test with a multimeter if u have one.
Old 08-29-2008, 02:06 AM
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Rock
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Fat man. You need new battery cables.

The car wont start not because the battery is drained, but because the cables are damaged somewhere. I never figured out where. Next time the car doesnt start, wiggle the positive battery cable around.

It will start. This is what I dealt with, with that car for the past 2 years.

That battery is relatively new. It came out of my sisters Audi.
Old 08-29-2008, 02:22 PM
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Dougs951
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Ok thanks I am going to put it on the lift on Tuesday and start checking wires
Old 08-29-2008, 04:36 PM
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UncleMaz
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If you cable and body ground check doesn't work out, time to start pulling fuses (one by one/checking current across battery). Not fun trying to find those parasites.
Old 08-29-2008, 06:58 PM
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Yabo
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Originally Posted by Dougs951
Ok thanks I am going to put it on the lift on Tuesday and start checking wires
Please get your battery checked too... its the easiest thing.
Old 08-29-2008, 07:49 PM
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Rock
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Originally Posted by Yabo
Please get your battery checked too... its the easiest thing.
That car has had like 5 new batteries in the past year.
Old 08-30-2008, 07:20 AM
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SpeedBump
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pick up a set of ice shark cables and replace that old crap.
Old 08-30-2008, 08:43 AM
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hrsteel
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Originally Posted by Yabo
Please get your battery checked too... its the easiest thing.
If you ever take your battery in to have it "checked" and the machine says it's bad, have them put the new battery on the machine to test it before you buy it. What do you want to bet those machines say that *every* battery is bad?
Old 08-30-2008, 10:41 AM
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Originally Posted by hrsteel
If you ever take your battery in to have it "checked" and the machine says it's bad, have them put the new battery on the machine to test it before you buy it. What do you want to bet those machines say that *every* battery is bad?
That machine said bad, went home stuck the battery in the car, jumped it drove it around and its fine.


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