How To Start A Car With Jump Leads. Find a car with a working battery and bring it near your car. Leave enough space between the two so that you can open both bonnets and connect your jump leads to each battery.
If theyre a cheap set and the wires are thin then they have a high resistance and will get hot during use. Grab your jump leads and find a vehicle with the same engine size or larger than yours. Now attempt to start the casualty vehicle.
Let the vehicle with the previously flat battery idle with the headlights on to prevent a possible voltage spike.
Because youre putting too much current through them. How To Test A Car Starter With A Screwdriver And Jumper Cables. Identify battery terminals or jump start terminals if your battery is not in the engine compartment Fig. If the charged battery doesnt have enough capacity to do this start the engine with the charged battery and try it again.