Product Details The Bluecol Jump Leads are fully insulated for your safety and designed to handle petrol engines up to 2500cc with a cable length of 2.5 metres. Key Features: Suitable for petrol engines up to 2500cc. Insulated cable and clips. Long reach 2.5 Metre cables. Safety advice and procedures: Check your vehicles handbook before using these jump leads. Some vehicle handbooks include model specific procedures. If this is the case, you must follow the manufacturer's procedure rather than the steps described below. Directions for use: Before connecting any leads make sure the vehicles are the same voltage and that they are parked with their handbrakes on and ignition off. The vehicles must not touch as this can cause sparks. Use the red jump lead to connect to the positive (+) terminal of the donor vehicle's good battery to the positive (+) terminal of the flat battery. Then use the black lead to connect the negative (-) terminal of the donor battery, then connect the other negative clamp to a suitable earthing point on the engine or chassis of the other vehicle. This earthing point must be away from the battery and fuel system. With both leads connected, wait three minutes for the voltages to equalise before starting either engine. Start the engine of the donor car and allow it to run for a minute then, with it still running, start the engine of the other car and leave both running at a fast idle for 10 minutes. Do not remove the jump leads while the engines ae running as this can cause considerable damage to the electronics on either car. if the jump leads get hot, then avoid a fire by switching off both engines and allowing the leads to cool. Turn off the ignition on both cars and then disconnect the leads carefully in the reverse order to the way they were connected.