What does the battery symbol displayed on the car mean?
2 Answers
When the car displays a battery symbol, it indicates a fault in the battery system. The solutions are: 1. Check whether the battery connection wires are oxidized. If there is oxidation, clean and polish them first, then reinstall and test the car. Sometimes, oxidation hinders battery charging; 2. Check for any signs of looseness in the battery's positive and negative wires. The functions of the battery are: 1. When starting the engine, the battery supplies power to the starting system, ignition system, and electronic fuel injection system; 2. When the engine stops running or is at low idle, it supplies power to the car's electrical equipment; 3. When the generator's output is insufficient, it supplies power to the electrical equipment; 4. It mitigates impact voltage in the electrical system and protects the car's electronic devices; 5. It stores excess electricity generated by the alternator.
That time I was driving on the highway when suddenly the battery symbol lit up on the dashboard, and I was really panicked. This symbol indicates a problem with the car's power supply system—it could mean the battery itself is old and nearly dead, or the alternator isn't charging. The alternator is responsible for supplying power to the battery, and if it fails, the battery will gradually drain, which could eventually cause the vehicle to stall. Being stranded on the road is too dangerous. From my experience, as soon as the light comes on, pull over immediately without turning off the engine to see if the symbol disappears. If it stays lit, head to a repair shop right away. Last time I went to the auto shop, the mechanic said it was due to corroded battery terminals, and a quick cleaning fixed it. Make it a habit to check the battery's condition and voltage every three months, and consider replacing it if it's over three years old. Just like a phone battery, it loses effectiveness over time—addressing it early can save a lot of hassle.
