To change a car battery, follow these key steps:
- Safety first: Park on a flat surface, turn off the engine, set the parking brake, wear safety gloves and goggles, and avoid sparks or smoking near the battery.
- Disconnect the battery cables: Start by loosening and removing the negative cable (usually black and marked with a minus -) to avoid short circuits. Then disconnect the positive cable (usually red and marked with a plus +).
- Remove the old battery: Release any restraint clamps or bars securing the battery, carefully lift it out (it can be heavy), and dispose of it properly.
- Clean terminals and install the new battery: Use a wire brush to clean corrosion from terminals and cable ends. Apply terminal grease to prevent corrosion. Place the new battery in the tray, secure it, then connect the positive cable first, followed by the negative cable, tightening the clamps securely.
- Final check: Ensure the battery is secure and cables are tight. Start the car to verify the installation.
This process requires basic tools like a wrench and a ratchet set, and protective gear for safety. Proper handling prevents sparks and acid spills, making the battery replacement safe and effective.