Can Car Batteries Be Repaired?
2 Answers
Car battery repair depends on different situations: 1. Car battery power failure can be repaired; 2. Car battery damage or aging cannot be repaired. 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 output is insufficient, it can assist in supplying power to the electrical equipment; 4. It mitigates impact voltage in the electrical system and protects the electronic equipment in the car; 5. It can store excess electricity generated by the generator.
I've been driving for over a decade and have seen plenty of battery failures. Regular car batteries are mostly maintenance-free lead-acid types, not designed for easy repairs. For issues like terminal oxidation or loose connections, I can handle them myself: disconnect the terminals, clean off the rust with baking soda or a specialized cleaner, then apply some anti-oxidation paste. But for internal problems like electrolyte leakage, plate sulfation, or short circuits, there's basically no saving it—repairing is time-consuming, labor-intensive, and dangerous, so replacement is the only option. Battery lifespan is typically three to five years. Avoid leaving the car parked for too long to prevent discharge, and regularly check the voltage with a multimeter—keeping it above 12.6V is considered healthy. Dispose of dead batteries properly at recycling points to avoid environmental pollution.
