The connection procedure is as follows:
(1) First, clamp the red wire of the starting line on the red battery anode of the "rescued car".
(2) Then clamp the red wire at the other end onto the positive pole of the red battery of the "rescue vehicle".
(3) Clamp the black wire onto the black negative electrode battery of the 'rescued vehicle'.
(4) Next, clamp the black wire onto the black negative electrode battery of the "rescue vehicle".
(5) Start the engine of the "rescued vehicle" first, and then start the engine of the "rescued vehicle". If you find that the rescued car still cannot be started, please check whether the metal contact part is not in good contact.
After starting the engine, it is still necessary to remove the starting fuse in sequence, otherwise it may cause a short circuit.

The procedure for removing the line is as follows:

First, remove the black wire of the "rescued car".
(2) Remove the black wire of the "rescue vehicle".
(3) Then remove the red wire of the 'rescue vehicle'.
(4) Finally, remove the red wire of the 'rescued vehicle'.

Usage:

Battery grounding wires can be purchased in the automotive parts market. Generally, battery grounding wires are black and red, mainly used to distinguish between the positive and negative poles. When hitchhiking, the vehicle on the side with electricity does not need to be started. Simply connect the batteries of the two vehicles in parallel, with a red grounding wire connected to the positive pole of the two vehicles' batteries and a black grounding wire connected to the negative pole of the two vehicles' batteries. After that, the vehicle can be started.

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