Battery dies when ca is left off for 3-4 hours or more.

1988 OLDSMOBILE TORONADO
155,000 MILES
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MIAH61068
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Car will start after running for about 15-20 minutes. Left off longer than that it will die. Ive tested the Neg post and cable in series and have a .01 mA draw
Nov 14, 2011 at 10:34 PM
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JACOBANDNICKOLAS
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If you only have a .01 mA draw, that isn't the problem. How old is the battery?
Nov 14, 2011 at 11:28 PM
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MIAH61068
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about a week old. Im so stumped by this one :(
Nov 14, 2011 at 11:45 PM
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JACOBANDNICKOLAS
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There has to be more of a draw to kill it that fast. Check the diodes in the alt.
Nov 15, 2011 at 12:07 AM
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MIAH61068
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how do i do that? lol Alt isnt even a year old yet either. But ill check em
Nov 15, 2011 at 1:15 AM
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JACOBANDNICKOLAS
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Have it tested at a parts store. The diodes are designed to allow power to travel in one direction. If they are bad, power will draw to ground.
Nov 15, 2011 at 1:23 AM
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MIAH61068
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had it checked about 3 months ago when the issue started but ill take it tomorrow and check again
Nov 15, 2011 at 1:46 AM
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JACOBANDNICKOLAS
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You know, it is an idea. However, with all the more draw you are seeing, the battery shouldn't go dead. Something must change the draw after sitting for some time.
Nov 15, 2011 at 2:11 AM
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MIAH61068
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but drain the battery dead that fast. within a couple hours its dead. Taking it to autozone tonight
Nov 17, 2011 at 12:14 AM
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JACOBANDNICKOLAS
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Let me know what you find. Something isn't making sense to me. With that small of a draw, it shouldn't kill the battery. Disconnect the battery and see if it goes dead on its own.
Nov 17, 2011 at 4:52 AM
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