Don't worry if your car won't start because of a dead battery. Just call a taxi from the side of the road and have it driven over to the front and back to jump-start it easily. Cars rarely run out of battery, but once in a while, it can really drive you crazy. Be prepared for the worst, but hope for the best. It's always better to have a battery jumper with you. It's a weight of 2 kilograms.

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'.
Then, remove the red wire of the "rescue car.