How to Jump Start a Car with Another Car?

[DanielaFitz]

Here is the relevant introduction to jump starting a car: 1. Prepare two jumper cables and a vehicle that can supply power. Remove the buckle of the battery box to open the battery protective cover, exposing the positive and negative terminals of the battery. Whether it's the rescue vehicle or the vehicle being rescued, all operations on the battery should be performed with the engine turned off. 2. Be sure to correctly identify the positive and negative terminals of the battery. If you cannot distinguish between the positive and negative terminals, avoid jump starting randomly. 3. Take one jumper cable and connect one end to the positive terminal of the dead battery and the other end to the positive terminal of the charged battery. Make sure the positive and negative terminals do not come into contact, as this could cause a short circuit. Take the other jumper cable and first connect it to the negative terminal of the charged battery, then connect the other end to the engine block or body of the dead vehicle. Avoid connecting negative to negative. 4. Once the cables are connected, start the charged vehicle to provide a reliable voltage to the dead vehicle. The jump-starting process is now complete, and the dead vehicle can be started directly. After starting, the vehicle's alternator will take over the power supply, and the jumper cables can be removed. Note that when removing the cables, disconnect the negative terminal first, followed by the positive terminal.

[VonCorey]

I remember feeling a bit nervous the first time I helped a friend jump-start a car. The whole process is actually quite simple, but you have to be careful. First, park another car nearby, make sure both cars have their engines turned off and keys removed. Open the hoods, locate the positive and negative terminals of the batteries—the positive is the red cap marked with a plus sign, and the negative is the black cap with a minus sign. Connect one end of the red jumper cable to the positive terminal of the good car, and the other end to the positive terminal of the dead car. Then, attach the black jumper cable to the negative terminal of the good car, and finally connect the other end to a metal part of the dead car's engine—never directly to the negative terminal of the dead car to avoid sparks and potential hazards. Start the good car and let it idle for a few minutes, then try starting the dead car. Once the dead car starts, remove the jumper cables in reverse order—first the black negative parts, then the red ones. The biggest risks during the process are short circuits or battery corrosion, so I always wear gloves and safety goggles. I also take the opportunity to check the battery fluid level—if it's low, I top it up with distilled water.

[McMiranda]

I've done jump-starting several times, and the key is to ensure safety and efficiency. First, park the two cars close but not touching, and turn off both engines. Take out the jumper cables, being careful not to touch the electrode parts. Start with the good car: attach the red clamp to the positive terminal (+), then the other red clamp to the dead car's positive terminal; attach the black clamp to the good car's negative terminal (-), and the other black clamp to the dead car's engine block or a clean metal point—never to the dead battery's negative terminal. Then start the good car, wait a minute or two for the battery to charge, and try starting the dead car. If successful, remove the cables in reverse order: first the black clamps from the dead car then the good car, and finally the red clamps. Remember, never stand between the two cars during the process to avoid accidental collisions. Afterward, check the dead car's battery and drive it for a while to recharge, preventing another quick stall. Always keep a high-quality jumper cable in the trunk for emergencies.

[VanJessica]

I always prioritize safety when jump-starting a car. Position the vehicles properly and turn off the engines. Follow these steps with jumper cables: Connect the red clamp to the positive terminal of the good battery and the positive terminal of the dead battery. Attach the black clamp to the negative terminal of the good battery, then connect the other end to an unpainted metal surface on the dead car's engine. Start the good car and let it charge for a few minutes before attempting to start the dead car. When removing the clamps, reverse the order—remove the black clamp first, then the red. Key points are to avoid poor connections or short circuits, as aging batteries can release flammable gases. Don't use tools that are too old or rusty. Keep gloves and inspection tools in your car for emergencies.