Anyone who’s to be driving long sufficient has experienced the inconvenience that a dead battery. You walk to begin your car, but nothing happens, so friend head come the trunk come grab your jumper cables.

But wait—do you yes, really know how to usage those things? If not, you might end increase making a failure that might cause an individual injury, damages to your car—or both.

What Can take place When friend Hook up Jumper Cables Backwards?

Hooking the jumper cables increase backwards can develop disastrous results⁠. Possible outcomes include irreparable damages to the battery, fried electronics, and also even serious an individual injury. Precisely what will take place when jumper cables room incorrectly connected depends on several factors, consisting of the vehicle, the battery, the top quality of her cables, and sheer luck.

Here’s what can take place if friend accidentally hook the cables up wrong once jumping a car:

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You need to not interchange the assignments of the clamps when attaching them come the batteries.

Jump starting your vehicle with jumper cables is pretty straight forward. Simply affix like poles together. The optimistic jumper cable should connect both batteries’ hopeful poles while the negative jumper cable attaches the two negative battery poles.


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Sometimes, girlfriend can affix the negative cable to the negative pole the the donor battery, and also instead of attaching the other end to the an adverse pole of the discharged battery, clamp it come a steel piece of opposing car’s structure to produce a ground instead.

In a few minutes, the vehicle with the dead battery should have the ability to start best up.