1996 Chevy Blazer battery won't stay charged

1996 CHEVROLET BLAZER
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CMR
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Electrical problem
1996 Chevy Blazer Two Wheel Drive Automatic 120047 miles
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Something keeps draining the battery. It will start all day, take us all over town and start reliably during the day, but it goes dead overnight. We had the system tested, and we tested it ourselves. The alternator and battery are good. I get .2 ohms from the disconnected positive terminal to the chasis. I can't find a short anywhere. I took out the fuses one by one, and the resistance did not change. what can be wrong?
Jan 5, 2008 at 11:37 AM
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RASMATAZ
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Disconnect the positive cable from the battery-put a test light between the battery positive post and disconnected cable-test light is it lit?
Jan 5, 2008 at 12:24 PM
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RT3JROC
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sometimes its usally the alternator thats killing the battery or the battery cables
Mar 6, 2008 at 10:14 AM
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