You parked somewhere and when you get back, the car does not start or faint. The most likely reason is that your battery is dead. The reasons for this can be listed as follows;
Your battery has reached the end of its life.
You may have left things such as high energy consuming headlights on while you go.
Your battery is new but its power is not enough for our car.
For any reason, if you want to reinforce your battery, apply the following items in order. Do not be surprised by the order and pay attention to the warnings.
It is important that both batteries are the same amps for all-over reinforcement.
Turn off the motor and everything that consumes electricity between the two.
Connect one end of the red jump lead to the positive section of the empty battery first and then to the positive section of the charged battery.
Fix the black attitude cable to the negative end of the empty battery first, then to the negative end of the charged battery, or to any hot and non-mobile location of the bodywork.
First start the battery-powered vehicle. Then start the empty battery powered vehicle.
Disconnect the cables starting from the empty battery powered vehicle.
Be sure to pay attention to the order and the warnings. In this way, you can reinforce your vehicle battery.