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2001 john deere 445 will not charge any common problems? How do you test the voltage regulator?

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Voltage regulators will keep the voltage at around 13.5 to 14 volts with the vehicle running. This is what keeps your battery charged while driving the vehicle. If is lower than battery voltage (usually around 12.3 to 12.8) then it is probably bad.

Posted on Jul 16, 2010


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