The following is the connected program:
First, clamp the red wire of the starting line onto the positive red battery terminal of the 'rescue car.'
(2) Then clamp the other end of the red wire to the positive red battery terminal of the "rescue vehicle".
Clamp the black wire to the black negative battery of the 'rescue car'.
Then clamp the black wire to the black negative battery of the 'rescue vehicle'.
Start the engine of the 'rescue vehicle' first, and then start the engine of the 'rescued vehicle.' If the rescued vehicle still cannot be started, please check whether the metal contact parts are poor contact.
After starting the engine, it is still necessary to remove the starting jumper wire in order, or there may be a short circuit.

The procedure for removing the line is as follows:

（1）Firstly, remove the black wire of the "rescue car".
Remove the black wires from the 'rescue vehicle'.
(3) Then remove the red wire of the "rescue car".
Finally, remove the red wire from the 'rescue car.'

【注意事项】

1. Operate strictly in accordance with the operating procedures.

2. Check the labeled voltage of both batteries to ensure they are the same.

3. Turn off all loads in the car, put it into neutral, pull the hand brake, and start the engine. Do not smoke near the vehicle.

4. If the car battery is frozen, do not start the car, or it may lead to an explosion.

5. Please ensure that the battery wiring polarity is correct.

6. When operating, the car must not come into contact with other vehicles.

7. Car batteries can produce explosive gases! Wear protective goggles when installing cable lines.

8. If acidic substances leak from the battery and spill onto your skin or eyes, immediately rinse with plenty of water and seek medical assistance.