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Booster Cables, Jump Leads
Using Jump Leads Safely Follow the manufacturers procedure if you have model specific instructions Never attempt to jump start a battery that is leaking or has cracks Avoid smoking or naked flames when attempting to jump startUsing Jump Leads Check the vehicles are the same voltage, and are close enough together but not touching, to be able to use the jump leads and the ignitions are off Use the Red jump lead on the good battery positive terminal and connect to the flat battery positive terminal Now connect the black jump lead to the negative terminal on the good battery and then connect the remaining end to a good earthing point on the engine or chassis of the the flat vehicle. With everything connected wait 3-4 minutes to equalise the voltages Now start the engine on the good vehicle and run for a minute or so. With the engine still running, start the other vehicle and run both for ten minutes on a fast idle speed. Do not disconnect the jump leads until you have turned the ignition off both vehicles, then take the jump leads off in the reverse order to how they were connected. Do not let the jump leads get hot, Turn off both engines and allow the leads to cool.