1988 Chrysler Conquest Battery loses charge

1988 CHRYSLER CONQUEST
93,000 MILES • 4 CYL • 2WD • AUTOMATIC
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CHHCHH
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I just bought a 1988 Chrysler Conquest and found that the Battery will not keep a charge. As soon as I park it and shut the engine off, I have to disconnect the battery or otherwise it will drain and I will not be able to start it the next day. Is this a common problem for this model and what can be done to fix it?

Thanks.
Mar 1, 2008 at 9:48 AM
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MERLIN2021
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Get an analog voltmeter remove the negative battery cable, attach the Black lead to the battery post, Red lead to cable end, then pull fuses one at a time, make sure there are no accessories or lights in the on position, Key off! Close the door after each fuse and check meter, when you pull the fuse for the bad curcuit, the meter will drop to 1 volt or so. Check all fuses, even under the hood. If meter does not drop, remove the battery connection from the alternator, if it drops now, the diodes are bad in the alternator. Put the fuse back in were it goes as you go so you don't forget which fuse goes were!
Mar 1, 2008 at 9:50 AM