What is the method for charging a car battery?

[Valerie]

The methods for charging a car battery are: 1. Use a dedicated battery charger; 2. Use jumper cables for charging. 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 is stopped or idling at low speed, it powers the car's electrical equipment; 3. When the generator's output is insufficient, it can assist in powering the electrical equipment; 4. It mitigates voltage surges in the electrical system and protects the car's electronic devices; 5. It can store excess electricity generated by the alternator. The maintenance methods for the battery are: 1. Start the car regularly to charge the battery; 2. When the electrolyte is low, replenish it with distilled water or a dedicated replenishing fluid; 3. Regularly check if the small holes on the battery cover are ventilated during daily driving; 4. Check for signs of oxidation on the positive and negative terminals; 5. Inspect all parts of the circuit for signs of aging or short circuits; 6. Turn off all electrical equipment when leaving the car.