How to Disconnect a Car Battery?

[VonBrayden]

To disconnect a car battery, follow these steps: 1. Use a wrench to unlock the engine hood; 2. Use a hydraulic jack to prop up the engine hood; 3. Locate the negative terminal of the battery in the engine compartment; 4. Disconnect the negative power cable to cut off the power supply. The functions of a 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 equipment when the engine is off or idling at low speed. To maintain the battery: 1. Start the car periodically to charge the battery; 2. Add distilled water or a specialized replenishing fluid when the electrolyte level is low; 3. Regularly check if the small holes on the battery cover are ventilated; 4. Inspect the positive and negative terminals for signs of oxidation; 5. Check all parts of the circuit for aging or short circuits; 6. Turn off all electrical equipment when leaving the car.