What is the correct method for removing and installing a car battery?
2 Answers
The correct method for removing and installing a car battery is: 1. Open the battery compartment and you will see a fixed bar fastened on top of the battery, use an 8-size wrench to loosen it; 2. After loosening, remove it. Next to the brick, you will see icons indicating the positive and negative terminals. Always remove the negative terminal first because contact with metal can cause a reaction, commonly seen as sparking; 3. Next, repeat the previous step to remove the positive terminal, and try to avoid contact with metal during the process; 4. Then place the new battery in position; 5. First, fasten the fixed bar into the groove below and then tighten it; 6. Repeat the above steps to reinstall; 7. When reinstalling, pay attention to reverse the order—install the positive terminal first, then the negative terminal.
With over twenty years of driving experience, I'm quite skilled at replacing car batteries. Before removing the battery, ensure the engine is completely off and the key is removed. Wear cotton gloves and goggles for safety. A 10mm wrench is sufficient—just match the bolt size. The removal sequence is crucial: first disconnect the negative terminal (black cable), then the positive (red cable) to avoid sparking or short circuits. Clean terminal corrosion with an old toothbrush and baking soda solution. Position the new battery securely, then reconnect in reverse order—positive first (tighten firmly), followed by the negative. Ensure the clamp is locked tightly to prevent movement. After installation, start the car to check if lights function normally; the radio or clock may reset, but that's a minor issue. Regular maintenance like applying anti-corrosion paste can extend battery life—always prioritize safety over haste.
