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6.5 A drain on battery when car is off

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Old 01-09-2009, 08:53 AM
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Default 6.5 A drain on battery when car is off

i have a 1997 audi a8 and recently it didnt start up so i jumped the car and got to work when i tryed to start it again it didnt start so i jumped it again got home and checked what was goin on and i found out that there is a 6.5A drain on the battery which lasts about 5 seconds and then disapeers and it comes back on after about 5 seconds

does any body know what can cause a 6.5A drain on the batter when the car is off and how to fix it
Old 01-09-2009, 11:17 AM
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How did you measure the current? I have a voltmeter as well (Sperry) and would like to do this
Old 01-09-2009, 11:31 AM
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Default This explains it pretty simply.

1) Your meter must have an AMPS setting rated to at least 10 Amps.

Put the meter in the circuit after the car is turned off. Make sure you don't try to start the car with the DMM in the circuit - or poof!<ul><li><a href="http://www.scienceshareware.com/images/electricity/how-to5.jpg">http://www.scienceshareware.com/images/electricity/how-to5.jpg</a</li></ul>
Old 01-09-2009, 12:26 PM
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Default Disconnect the - pole of the battery. Put one of these between the neg cable and the battery's

neg pole. The test light will illuminate. Now start pulling the fuses one by one. When the light goes out, you found the circuit that drains the battery.<ul><li><a href="http://images.google.com/imgres?imgurl=http://images.orgill.com/200x200/3506904.jpg&amp;imgrefurl=http://automotive.hardwarestore.com/87-543-auto-electrical-tools.aspx&amp;usg=__DaVMNt2wsCe_9Z2bSTIfEk7nmH0=& amp;h=200&amp;w=200&amp;sz
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