Is a car battery voltage above 14V normal?

1 Answers
BriellaMarie
07/24/25 7:30am
Car battery voltage of 14V is considered normal. The normal voltage of a car battery is approximately 13V, with a load voltage not less than 11V. Below this voltage, starting the car may be difficult. After starting, as the alternator begins generating electricity, the normal voltage of the car battery should be between 13.5V and 14.5V. Here are some related details about car batteries: 1. Detail one: Both excessively high or low battery voltage can have certain impacts. It's advisable to regularly check the battery's condition. If the battery voltage drops below 10.8V, it should be charged promptly. If the voltage is too low, the car may experience difficulty starting or even fail to start. Conversely, if the voltage is too high, it may damage the battery. 2. Detail two: The battery can be charged by the alternator while the car is running. If the car is parked for an extended period, the battery may lose charge, making it difficult to start the car. Therefore, during long-term parking, it's recommended to start the car at least once a week. The alternator will charge the battery, typically requiring idling for more than 5 minutes.
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