Before charging the battery, you should warm up the frozen electrolyte of your battery. Also make sure that both cars have no electrical contact with each other (due to the possibility of a short circuit when connecting the positive poles), and the discharged battery is properly connected. Turn off the ignition on your car.
Start the engine of the vehicle with the donor battery and set the engine speed to medium.
Connect positive (+) cable A to terminal (+) 1 of the discharged battery, then to terminal (+) 2 of the donor battery.
Connect the negative (-) B cable to terminal (-) 3 of the donor battery and then to terminal (-) 4 of the dead battery.
Check that the jumper cables A and B have no contact and that the positive cable A has no contact with any metal parts of the vehicle with the donor battery.
Start your car's engine as usual. Once the engine has started, disconnect cables A and B in the reverse order (4-3-2-1).
Attention! Do not allow electrolyte to come into contact with your skin or eyes, do not use open flames near the battery, when working in the engine compartment, remember that the cooling system fan may turn on at any time.