What is the Normal Voltage of a 12V Car Battery?

1 Answers
OEmersyn
07/28/25 7:07pm
Car 12V battery normal voltage is: no-load voltage is around 13V, load voltage should not be lower than 11V. Functions of the battery: 1. Supply power to the starting system, ignition system, and electronic fuel injection system when starting the engine; 2. Provide power to car electrical equipment when the engine is off or at low idle; 3. Participate in power supply when electrical demand exceeds the generator's supply capacity; 4. Stabilize voltage and protect electronic equipment in the car. Battery maintenance methods: 1. Clean the battery regularly; 2. Avoid using electrical equipment when the engine is off; 3. Replace the battery periodically; 4. Start the car regularly.
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