What are the steps to charge a car battery?

[OEliana]

The steps to charge a car battery are: 1. Ensure the engine is turned off and remove the battery from the vehicle; 2. Place the battery in a well-ventilated, cool, and open area, and open the vent caps on the battery; 3. Wear goggles and rubber gloves, then attach the charger's red clamp to the battery's positive terminal marked with a plus sign, and the black clamp to the negative terminal marked with a minus sign; 4. Select the slow charging mode, set the gear to 2, and choose a 12V power source; 5. Plug in the charger, turn on the power, and start the charging process. Precautions for charging a car battery: 1. In cold weather, check if the electrolyte is frozen before charging; 2. Check the electrolyte level before charging; 3. Measure the electrolyte density and voltage approximately every hour during charging and monitor its temperature; 4. Ensure the charging area is well-ventilated and strictly prohibit open flames; 5. Stop charging if unattended.