4m 2000A Cable battery booster cable jumper car red battery clip

The wiring steps are as follows: (1) First, clamp the red wire of the starter cable to the positive pole of the red battery of the "rescue car". (2) Then clamp the red wire at the other end to the positive pole of the red battery of the "rescue car". (3) Clip the black wire to the "saved" black negative battery. (4) Then clip the black wire to the black negative battery of the "rescue vehicle". (5) Start the engine of the "rescue vehicle" first, and then start the engine of the "rescue vehicle". If it is found that the rescued vehicle still cannot be started, please check whether the metal contact parts are in poor contact.