charging voltage?
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Joined: Dec 2013
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From: Bakersfield,CA
charging voltage?
Have stock 1973 F250, 390/C6, except the voltage regulator is a solid state electronic type, rather than the original mechanical type.
What is the correct charging voltage measured at the battery terminals.
Measuring 14.4 volts, seems a bit high.
What is the correct charging voltage measured at the battery terminals.
Measuring 14.4 volts, seems a bit high.
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Joined: Feb 2004
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From: The Shenandoah Valley
The battery in my '77 is now over 11 years old, it's a NAPA "Legend 75". It's doing quite well I think.
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Joined: Feb 2004
Posts: 10,836
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From: The Shenandoah Valley
You know that Advance Auto Parts (maybe others too?) will do an "on vehicle test" that will test battery, starter, and charging system unloaded and loaded, as well as at idle and at over 1500 rpms using high beams and heater motor for load .... and it will show if there's any excessive ripple from the rectifier too .... and it's FREE.
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Joined: Dec 2013
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From: Bakersfield,CA
Saw video on U-Tube addressing the various methods to test the charging system.
The most advanged method was using a "Snap On" instrument that meaured the ripple in the alternator output.
Using a volt meter to check output voltage and currently output with load on the alternator using heater wire reistance or stack carbon discs is not the entire story.
It also checks for a blown diode in the alternator were the battery discharges through the alternator with the engine not running.
The most advanged method was using a "Snap On" instrument that meaured the ripple in the alternator output.
Using a volt meter to check output voltage and currently output with load on the alternator using heater wire reistance or stack carbon discs is not the entire story.
It also checks for a blown diode in the alternator were the battery discharges through the alternator with the engine not running.
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