Renault Forums :: Independent Renault forum - View Single Post - Battery Light Stays On

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post #4 of (permalink) Old 14th December 2007
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It is a simple thing to test the alternator. Use a multimeter - connect it across the battery and check the voltage if it is around 14volts with the motor running that means the alternator is charging. I would have thought if the light has been on for that long with a faulty alternator the battery would be very flat by now!!!!! If the alternotor is charging then the fault lies elsewhere and you should consult an auto sparky.
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