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Possibly. Charge the battery to 100% with a battery charger and then check the battery with a digital volt meter set to the 20 volt DC scale. If it reads 12.6 V it is fully charged, 12.4 it is 75%, 12.2 it is 50%, any less and the battery is dead. If it reads below 12.2 the battery is no good. If it will not take a charge at all it is defective. So all you can do is charge it and you will then know where you stand.

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Q: Are car batteries still good after sitting for 4 years?
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