How do I jump-start a vehicle with this unit?

Connect the red clamp to the positive (+) terminal of the battery, connect the black clamp to a non-moving metal part of the engine block or chassis, turn the Jump Starter switch to 'ON', and attempt to start the vehicle. If it doesn't start within 5-6 seconds, wait at least 3 minutes before trying again. Once started, turn the switch to 'OFF' and disconnect the black clamp first, then the red clamp.