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Old 06-14-2021, 07:37 PM   #5
nkaminar
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Join Date: Jan 2012
Location: Western North Carolina
Posts: 3,897
Default Re: Alternator Always Charging

Hook up a voltage meter in addition to your ammeter. Voltage should be at 7 to 7.5 volts while driving. The battery should be recharged within 5 miles or so and the ammeter going to 0 while driving.

Something is using amps. Either a load on the battery side of the ammeter or the battery is not accepting a charge. How is the water level? How old is the battery? Is the battery warm when you get home? Check to see if the ignition or some other load is on the battery side of the junction box. Or, as you say, could be a bad regulator internal to the alternator.
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