Your guide to using jumper cables

November 26, 2015

Anything can happen and it’s always good to come prepared when something major, like your car dying does occur. In this case you should know how to use jumper cables in case that day comes where you don’t need to ask for roadside assistance.

Safety comes first

Alway ensure that metal objects are kept out of teh way such as rings, watch straps, hand tools, clips or stray wires. These can cause a spark, possibly exploding the battery and releasing the acid. Never attempt to jump-start a battery that has been damaged or is leaking, it could possibly lead to an explosion. Batteries give off flammable gases, avoid smoking or naked flames, as it could result in an explosion. Avoid wearing loose fitting clothing,  particularly scarves or neckties. The running engine could easily result in getting caught up with the  pulleys or belts.Don’t use jump leads if they’re damaged as the broken conductors or damaged clamps can overheat and may catch fire.

The how to guide

Before you make a connection make sure the vehicles are the same voltage and that they’re parked with their handbrakes on and ignition off.

  1. Use the red jump lead to connect the positive terminal of the donor vehicle’s good battery to the positive terminal of the flat battery.
  2. Then use the black lead to connect the negative terminal of the good battery to a suitable earthing point on the engine or chassis of the other vehicle. It is important to note that the  earthing point must be away from the battery and fuel system.
  3. With both leads connected wait no more than three minutes for the voltages to equalise before starting either engine. Even if you have used Chevrolet cars for sale, this won’t stop its battery from dying.
  4. Start the engine of the donor car and allow it to run for a minute.
  5. The donor car engine should still be running,  when you start the engine of the other car and leave both running at a fast idle for ten minutes.
  6. Never attempt to remove the jumper cables while the engines are running as this can cause serious damage to the electronics on either car.
  7. Only when the  jump cables  get too hot, then only switch off both engines and allow the leads to cool to avoid a possible fire.
  8. Turn off the ignition on both cars and then disconnect the leads carefully in the reverse order to the way that they were connected. Never allow the the clips against each other or against the car bodywork.
  9. Start the car that had the dead battery using its own battery power.

And now you’re ready to jump away!

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