answersLogoWhite

0

13.8 Volt DC is the output of the Alternator. If your car is equipped with an Ammeter the ammeter reads more than zero, the alternator is cahrging the battery and provides power to other circuit. If the ammeter reads below zero its the battery that is supplying the power to the system and something is wrong either in the AVR or Alternator. Jun

User Avatar

Wiki User

19y ago

What else can I help you with?