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Usually it means that the alternator isn't charging the battery. Batteries store electricity and the alternator uses energy from the engine to produce electrical energy for all of the devices in the vehicle and to recharge the battery. If the alternator isn't working the battery will eventually loose it's charge and you will not be able to start the vehicle.

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โˆ™ 2005-11-22 06:07:41
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Q: What does it mean when the battery light comes on?
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