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1. Make sure both vehicles are closed.2. Connect one end of the red clip to the positive (+) of the dead battery.3. Connect the other end of the red clip to the positive (+) of the good battery.4. If the battery is good, connect one end of the black clip to the negative terminal (-).5. Attach the other end of the black clip to the frame bumper or engine block.The battery is exhausted. Do not connect directly to the negative (-) rear.6. Make sure that the clip of one cable does not accidentally touch the clip of the other cable. Start the working vehicle, wait 1-2 minutes, start the dead vehicle, and then keep the vehicle running for a few minutes to charge the battery.7. Disconnect the cable clamps in reverse order.