Question

Technician A says the voltage regulator keeps alternator output at a present charging voltage. Technician B says the charging voltage is 13-15 volts. Who is right?

Answer 1

Technician B is right. The voltage regulator in a vehicle's alternator keeps the alternator's output voltage at a present charging voltage, typically between 13-15 volts.

Step-by-step explanation:

Technician B is right. The voltage regulator in a vehicle's alternator is responsible for keeping the alternator's output voltage at a present charging voltage, typically between 13-15 volts. This ensures that the battery receives the correct amount of charge to stay charged without overcharging it.