Updated: Feb. 03, 2021 Show
Learn how to jumpstart a car safely. Follow these four simple steps to make good, safe connections and jump a car.Dead or weak battery? Jump-starting a vehicle is easy and safe if you follow these four simple steps. Keep reading to learn how to jump-start a car. How to Jump-Start a CarCarrying a set of jumper cables can help you help a fellow motorist—or the other way around. How to jump start a car is usually pretty simple, but it’s serious business and you have to do it right to do it safely. Every year people are seriously injured while attempting to help another driver with a “jump.” Clip this how to jump a car battery article and put it in your glove box. Then, before you even connect the cables, go through these steps for how to jump a car battery safely:
How to connect jumper cables and how to jump-start a carHow to Jump a Car Photo 1: Hook-up at the weak batteryConnect to the positive cable to the positive terminal of the weak battery. Connect the negative terminal to metal on the engine for the correct way on how to attach jumper cables. How to Jump a Car Photo 2: Hook-up at the good batteryConnect to the positive cable to the positive terminal and the negative cable to the negative terminal of the good battery. How to jump-start a car steps:
Caution: Don’t attach the negative cable to the negative terminal of the weak battery when jumping a car battery! This common mistake could ignite hydrogen gas directly over the battery. Battery explosions can cause serious injury. Even if you’ve gotten away with it before, use a metallic engine part instead when jumping a car. Now start the car with the good battery, let it charge the weak battery for 5 minutes, then try to start the car with the weak battery. If it doesn’t start, shut off both ignitions, make sure the cable clamps are making good contact and then try it again. When the car with the weak battery starts, wait (about 15 seconds or so) to make sure it doesn’t stall. Disconnect the cables in the reverse order: First remove the negative cable from the car you jumped, then the negative cable from the car with the good battery. Then remove the positive cable from the car with the good battery (don’t touch a grounded part of either car with the clamp of the positive cable). Finally, remove the positive cable from the car with the weak battery. Remember, both engines will be running (with any luck!), so work carefully as you remove cables to avoid belts, fans and other moving parts. Pro Tip: If you live in a very cold climate, buy the thickest-gauge cables you can find (the lower the number, the thicker the cable). If it’s time to replace your car battery, check out the video below on how to replace a car battery. Required Tools for this How to Jumpstart a Car ProjectYou’ll need a set of jumper cables to know how to jump a car. Originally Published: May 30, 2019 Similar ProjectsWhen jumping a car which cable goes on first?First the clamp of the red cable is connected to the positive terminal of the assisting vehicle. The other end of the red cable is connected to the positive terminal of the broken down vehicle. Then the black clamp is connected to the negative terminal of the assisting battery.
Should car be running when attaching jumper cables?Make sure both vehicles are off.
Make sure both vehicles are turned completely off before attaching the jumper cables to the battery terminals!
What is the correct order to detach jumper cables?Once the dead car's engine is running, remove the jumper cables in the opposite order that you put them on: Disconnect the black clamp from the grounded metal section of the dead car. Disconnect the black clamp from the good battery. Disconnect the red clamp from the good battery.
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