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Charging system isn't charging

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Check fuses if good check voltage directly at altanator must be at least 12.9 and not over 14.9volts

Posted on Jul 27, 2013

  • Kenny Church Jul 27, 2013

    I replaced the alternator and the passenger side is getting a good 14 volt charge, however the drivers side is only showing 11 volts. There is only one 4 gauge wire connecting the two batteries and there is no bad places in it.



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Posted on Jan 02, 2017

Mr BrokRench
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SOURCE: The battery isn't charging some

Have the battery load tested to determine it's ability to take & hold a charge. It could have a bad cell that will drain the good cells. Your local auto parts will test the battery free of charge.
I hope this helps.

Posted on Aug 26, 2011

  • 53 Answers

SOURCE: My 1991 dodge d150 has a new battery and altenator

The voltage regulator is built in the alternatorJohnny

Posted on Mar 16, 2012

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Have you replaced the voltage regulator?
Unless you have changed the charging system and eliminated it, the alternator does not have a built-in voltage regulator like the newer ones do.
Be blessed.

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1 Answer

Truck will not turn over, gauges all come on but nothing from the engine, acts like dead battery but it is brand did it before and was told it was the battery, put a new one in....worked great for...

your charging system isn't working, if you replaced the battery and it worked for a few days, then its not being re charged after starting, I'm assuming you cleaned and tightened all the battery post connections when you installed the new battery , if not do so ,, charge the battery from an outside source, once you know its fully charged,, use a meter, and start the car ,, check the voltages at the battery posts,, you should be getting a reading of 13.5-14.5 volts, if not your alternator isn't charging the battery

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Battery won't hold a charge, suspected the alternator might be at fault. Then all the relays went absolutely haywire! Even without the key in the ignition, all the relays will click on and off, it's...

If your alternator isn't charging, it will drain the battery to a low enough voltage where relays will "chatter". I suggest you get the charging system checked, and it wouldn't be a bad idea to get the battery load tested to see if it's still sound..

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