What are the correct steps for jump-starting a car battery?
2 Answers
First, connect one end of the red positive battery cable to the positive terminal of the rescue vehicle's battery, then connect the other end to the positive terminal of the stranded vehicle's battery. Next, connect one end of the black negative battery cable to the negative terminal of the rescue vehicle's battery, then connect the other end to the negative terminal of the stranded vehicle's battery. Once the battery cables are properly connected, the stranded vehicle can be started normally.
As a seasoned driver with over 20 years of experience, I approach jump-starting with caution and precision. First, park both vehicles steadily in an open area, turn off the engines, and wear insulated gloves to avoid electric shock. Then proceed with the cable connections in order: attach one end of the red clamp to the positive terminal of the dead battery and the other end to the positive terminal of the live battery. Next, attach the black clamp to the negative terminal of the live battery, but the other end must be clamped onto a clean metal part of the dead car, such as an engine bolt—never directly to the negative terminal to prevent sparks. Start the engine of the rescue vehicle and wait patiently for two to three minutes to stabilize the current before attempting to start the stalled car. Once started, let the stalled car idle for at least 15 minutes to recharge the battery. When removing the cables, disconnect the black clamps first, then the red ones—the order must not be reversed, as this could cause a short circuit or damage the system. I've seen beginners forget this step and blow fuses or even cause small sparks, so safety comes first. Regular battery maintenance to prevent complete discharge can reduce the risk of needing a jump-start. The entire process should be slow, steady, and precise—details make all the difference.