Skip to main content
Gerry | Vanagon
Checking account...
← vanagon.com home · Continue the discussion in the forum
VanagonEuroVan
Subject:Re: alternator voltage output
From:Jim Davis
Date:Sun, 24 Jan 1999 00:57:39 EST

In a message dated 99-01-20 13:00:01 EST, wdavidson@THEGRID.NET writes:

> Measuring voltage at the battery terminals,
>  The reading is 14.1v at start up.
>  Within a few minutes that voltage drops to the 13.2v to 13.6v range.
>  Is this normal? Or is my alternator bad?

This is the normal action of the voltage regulator.  When the battery needs
charging (like right after starting) it increases the voltage to charge the
battery to charge it.  As the battery charges the voltage output from the
alternator/voltage regulator drops off to avoid overcharging the battery.

Regards
Jim Davis

Have something to add on this topic today? Revive this thread in the forum »