CAR BATTERY

1991 Oldsmobile Ciera

Tiny

aspenite

February, 21, 2011 AT 5:30 PM

I've gone through all the checks for the battery system but all are right what else would cause the battery to drain over night?

FOUND 3621 RELATED QUESTIONS

Not Charging Battery

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Battery Will Not Charge

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5 IMAGES

1 Answer

Tiny

JDL

February, 21, 2011 AT 5:40 PM

You have to be sure the battery has a full charge or you can't do any testing. Check the charging system also.

If you have an excessive drain with everything turned off. Check for a lite staying on, best time to check is in the dark, trunk--underhood-- interior. You can take battery cable loose, use a testlite between cable and battery post, if lite come on birght, you have a drain. If the drain is on a fused circuit, you can pull/replace fuses one at a time, when you pull the fuse on the faulty circuit, the lite goes out.

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