What to Do When the Car Battery Fails?
2 Answers
If the car battery fails and has been in use for a long time, consider replacing it; if it has been used for a short period, the issue may be resolved by repairing the battery. The normal lifespan of a car battery ranges between 1 to 8 years, largely depending on the vehicle's condition. With a properly functioning vehicle alternator recharging the battery and no electrical leakage or grounding issues, the battery can last over 3 years. The functions of the car battery include: 1. Providing power to the starting system, ignition system, and electronic fuel injection system when starting the engine; 2. Supplying power to the car's electrical devices when the engine is off or at low idle; 3. Assisting in powering electrical devices when the alternator's output is insufficient; 4. Mitigating voltage surges in the electrical system to protect the vehicle's electronic equipment; 5. Storing excess electricity generated by the alternator.
Oh, I've encountered car battery failures several times. It's really nerve-wracking when the car suddenly won't start on the highway! Quickly pull over and turn on the hazard lights—safety first. Either call for roadside assistance or, if you have jumper cables, find a kind driver to help jump-start your car: connect red to red and black to black. After connecting, don't rush to turn it off; let the engine idle for a few minutes to charge. Once you reach a repair shop, replace the battery—they typically last 2-5 years, so choose a model with a higher CCA rating for better durability. Avoid leaving lights or the stereo on when parked to prevent rapid battery drain. Dispose of old batteries properly—don't throw them away randomly; recycle them for environmental safety.
