Car voltage regulators are usually tested with a multimeter, which is clamped directly onto a car battery's terminals. Find out why a car battery should have 12 volts with the car off with help from an auto mechanic in this free video on car repairs and mechanics.

Expert: J.B. Hebert
Contact: www.wrxtra.com
Bio: J.B. Hebert is a machinist, metal fabricator, and auto mechanic who has been fixing and modifying all things mechanical for over 20 years.
Filmmaker: David Pakman

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