The maximum voltage of a car alternator is typically 14.5 volts.
Car alternators are designed to maintain a consistent voltage output to charge the battery and power the vehicle's electrical systems. While they produce a minimum of around 13 volts, the voltage regulator prevents them from exceeding approximately 14.5 volts to protect sensitive electronic components from damage due to overvoltage. Going over this limit can lead to component failure. Alternators tend to last around 100,000 miles before potential malfunctions.
