I have used jumper cables dozens of times and have never been electrocuted or received a shock. Just exercise some common sense and follow the outlined procedures and you will not shock yourself. It should be noted that you can cause sparks by touching the ends of the jumper cables together. This is dangerous because it can cause the battery to explode. You will also ruin your jumper cables. There is plenty of amperage in a car battery to cause the jumper cables to melt.
So while the voltage is very low and probably will not hurt you, the amperage is high enough, that when mishandled could lead to injury. Finally, Hybrid vehicles are a different matter. I do not recommend jump-starting a hybrid.
From what I understand, they carry significantly more voltage than your standard car battery. Again, follow the steps outlined here so that this does not happen. But if you are the curious type, this is what can happen if you reverse the polarity on your jumper cables.
This should go without saying, you will damage or destroy not only the dead battery but also the donor battery. The batteries are designed to produce a large electrical current to start the car. When the positive of one battery is connected to the negative of the other battery the result is a superheated battery very quickly.
This is no joke because it will cause the internals of both batteries to melt, thereby destroying the battery. When the internals of the battery begins to heat up it produces hydrogen gas. This is bad for several reasons. The outside plastic casing of the battery is also getting very hot and starting to melt.
The melting casing combined with the pressure from the hydrogen gas on the inside will cause the casing to crack. At this point the battery is useless, but also you are now at serious risk of explosion. The hydrogen gas is highly volatile and any little spark will ignite the gas. Worse than damage to the battery is the possible damage to the other electrical components in your vehicle.
This could range anywhere from some simple fuses to the alternator to any other component in the electrical system. There are fuses in place to protect your vehicle from such a surge of power, and these can be easily replaced. A more serious component that can be damaged is the alternator.
This is particularly true of the donating car. If you leave your car running for any length of time with the cables reversed you could seriously damage the alternator of the car that is supposed to be helping you.
Think about all of the electronic systems in your car. There is the main computer, the ignition system, lights, power windows and locks almost everything is controlled by an electrical system. There could be unknown damage to any of these systems after incorrectly trying to jump your car. At this point, this should be the least of your concerns, but you will probably irreparably damage the jumper cables.
Remember, reversing the positive and negative cables causes the batteries to heat up very quickly. All of that heated electrical current is traveling through the jumper cables.
This will cause the clamps themselves to melt and be unusable and possibly weld themselves to the battery terminal. It will cause the insulation to melt, which you can burn yourself on and expose the wire; which exposes you to raw electrical current. Most likely you will need a new set of jumper cables after this experience. As I have mentioned before I have jumped started cars using jumper cables dozens of times and never once have I reversed the polarity of the cables. Just take your time and pay attention, respect your vehicle and you will be fine.
Now at least, you are aware of the consequences of being careless. Selecting a set of jumper cables is not rocket science, but you want to make sure that you get the right size that will do the job.
A copper-clad aluminum cable conducts electricity almost as well as a solid copper cable, but the compromise of the aluminum helps to reduce the weight and cost. These should only be considered for emergency use. These cables are 15 to feet long with a 4 to 6-gauge wire. If you own a larger vehicle, a higher-end jumper cable is best suited for you. These cables are upward of feet long and have 1 to 2-gauge wires. No one wants to be broken down and stranded on the side of the road. Because of their importance, jumper cables are never an item that you should buy for cheap.
It is a common misconception that all jumper cable sets do the same job, and believing this is an easy way to get yourself stranded despite having the proper equipment. You should not skimp on such an important piece of equipment. Menu Home. Heavy duty jumper cables come with bigger and stronger clamps.
This makes for better connections between the two batteries terrminals, which reduces the chance of jiggle to avoid sparking occur. Through many years of industry experience and extensive products testing, we believe that a premium welding cables will be ablle to provide exceptional and reliable result and for this reason that we are proudly to offer the longest warranty to our customers.
Battery Jumper Buying Tip No 6. M ost importance tip! The process of boosting of a battery is especially important. Jumper cables should be connected properly to avoid sparks, which may cause an explosion of the hydrogen gas emitting from a battery. Beyond this, an incorrect hook up can damage critical and expensive electronic components.
The procedure is simple:. Next, the negative - , or ground, terminal on the good battery and, finally, the negative clamp to the engine block, frame or other grounded metal as far as possible from the battery. You want to avoid sparks in the vicinity of the explosive hydrogen gas that emits from the battery. Do not connect it to the ground terminal negative. In short :. Additional suggestion:. This is what happens when jump start the car goes wrong. Battery Jumper Buying Tip No 7.
Our jumper cables storage bag will protect your cables and keep it in an easy reach place. This handy storage bag will fit neatly at the car boot or lay it inside your spare tire to solve your storage problem! Choose Battery Jumper Set with sufficiency gauge AWG , cooper wire, cable flexibility, heavy duty clamp with proper guidance instruction.
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If you are going to buy a Battery jumper set for your car, then you must be cautious and concentrate on some basic things like what we are going to discuss as follows: 1 Cable gauge-se lection of gauge. If you want to skip it What can you do? Which wire goes on first? Attach the other red end to the positive terminal of the donor car. Attach the black cable to the negative terminal of the donor car.
Connect the other end of the black cable NOT to the negative battery terminal but to an unpainted metal part of the engine compartment. You may have to hunt around. Have bystanders step away from the engine compartments. Start the donor car, rev the engine a little, to 2,, rpm.
Start the engine on the dead car. Once the dead-engine car starts, disconnect the cables in reverse order: Black cable on dead car comes off first, then black on good car, red on good car, red on dead car. Keep the now-started car running at least 15 minutes. Give it a good tug. It takes more effort than the button or lever that opens the trunk. The hood will pop open a little. Then go to the front of the car and find the safety-catch lever in the opening below the hood.
A flashlight helps to see the lever. Start in the middle and run your hand left or right to find it; it will be dirty, so use a paper towel or old cloth. Push it left or right, or up. The safety catch may instead be between the grilles. If so, give it a pull. Lift the hood. Some hoods stay open on high-end cars. For most others, find a metal rod, swing it up and into a slot or hole on the underside of the hood.
My Battery Is in the Trunk. What Do I Do? You may have to lift or slide back a flap. Connect a red cable to it as your first step and follow the remaining steps, above.
Thicker battery wire 1-, 2- or 4-gauge Strong clamps the hold the cable tight to the battery posts. A bag for the cable. A lower number is thicker wire. Most jumper cables are 2-, 4-, or 6-gauge. Household wiring in the walls is or gauge; appliance and lamp cords are or gauge. Thicker is better but also heavier and bulkier. Both have their uses. A jumper cable works virtually every time, if someone offers to help and if you or they have jumper cables.
Get a battery charger-maintainer. It charges the battery then maintains the battery at full charge.
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