What can happen if you hook up jumper cables backwards


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Jumper cable mistake may be costly

Sears has an impressive, if somewhat ludicrous, hapen in its automotive centers showing a DieHard battery getting blasted by a high-powered rifle. Back then, batteries often leaked, got caked with corrosion, and needed to be opened and filled with extra water about once a year. Modern batteries are for the most part sealed tight and maintenance-free. Connect the positive cables to the positive terminals on each battery, and then connect the negative cable to the negative terminal on the working battery.

But why is the order so hok I asked Greg St. Aubin, manager of after-market training for the what can happen if you hook up jumper cables backwards maker ACDelco and a longtime technician, to explain. The average car these days, he began, has 20 or more onboard computers. But I have taken the shortcut of putting a positive and negative connection on the working battery first, then walking over and putting the remaining jumper cables on the disabled car.

Why go hook for some piece of the car frame to connect to when the dead battery has a nice, clean negative terminal beckoning you to use it? Not so long ago it was acceptable practice to latch onto that negative terminal. I used to do it myself. Over time, those vapors build up inside the battery and begin to seep out through small vents without you knowing it. Wear goggles when jump-starting a battery and remove ties, scarves, and jewelry, especially wedding rings, St.

Apply the mixture and use a stiff brush to remove the residue. Jumped my last column I included a warning from the Battery Council not to jump-start a hybrid or electric car because yook batteries differ chemically from standard batteries. But Prius owners say they can, in fact, jump their vehicles like any other car because the Prius has a normal car battery in addition to its hybrid battery.

Peter DeMarco lives in Somerville and can be reached at demarco globe. Your Town More towns. THIS STORY HAS BEEN FORMATTED FOR EASY PRINTING. Connect the positive cables to the positive terminals on each, then connect the first negative cable to the negative terminal on the working battery. For the last connection, latch the hoom cable to any unpainted metal on the car cabes, as far from the battery as the cable allows. Aubin of ACDelco says crossing the cables will cause an electrical short that could instantly fry some of those 20 computers aboard the average car.

Take care when jump-starting battery, or pay acbles price By Peter DeMarco. Single Page 1 2. Sorry, we could not find your e-mail or password. Please try again, or click here to retrieve your password. Waiting for What can happen if you hook up jumper cables backwards to feed in the latest Follow this list on Twitter: LOG IN TO COMMENT OR TO SEE OUR NEW FEATURES YOU MUST LOG IN to see all of the cxn available on our new Personal Pages.

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Backwards battery hookup


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