What does it mean when the battery indicator light on the car dashboard turns red?
1 Answers
When the battery indicator light on the car dashboard turns red, it indicates a malfunction in the vehicle's charging system, and immediate inspection and repair are required. The battery indicator light on the dashboard is a charging system warning light, which is connected in parallel between the alternator and the battery. When the alternator is not generating electricity, it only receives voltage from the battery, forming a circuit that illuminates the light. When the alternator starts generating electricity, causing equal voltage at both ends, the light will turn off. Functions of the car battery: 1. Powering the engine starting system, ignition system, and other electrical components of the car; 2. Providing power to the vehicle's electrical equipment when the engine is off or at low idle; 3. Assisting in power supply when the electrical demand exceeds the alternator's capacity; 4. Acting as a voltage stabilizer for the entire electrical system, mitigating voltage spikes and protecting the car's electronic devices.