Precautionary measures
If the prescribed procedure is not followed, there is a risk of burns from acid escaping from the battery. In addition, there is a risk of injury and injury if the battery explodes. It is also possible, damage to the electrical equipment of the car.
- avoid contact of electrolyte with eyes, skin, clothes and varnished surface of the body. It has a corrosive effect. If electrolyte gets in, wash it off with clean water, and if necessary, consult a doctor;
- do not allow neoplasms or open flames in the immediate vicinity of the battery;
- use safety glasses;
- Protect the booster battery wire from damage from rotating parts such as radiator fan blades.
Both batteries must have a nominal voltage of 12 volts. The battery cover must be removed.
A discharged battery can freeze even at -10°C. A frozen battery must be thawed before connecting the start aid cable.
A discharged battery must be properly connected to the vehicle's electrical system.
1. Check the electrolyte level in the discharged battery. Top up with distilled water if necessary and screw in the plugs.
2. Place the cars in such a way that their metal parts do not touch, otherwise a current may already occur when the positive poles are connected.
3. Apply the parking brake on both vehicles. Set the manual transmission to neutral, the automatic to «R» = «parking».
4. Turn off all current consumers, including the phone in the car.
5. Leave the engine of the feed vehicle to idle. This prevents the vehicle's alternator from being damaged by voltage spikes when starting a second vehicle.
6. Connect the starting aid wires in the following sequence:
- A) Connect the red wire to the positive battery post of vehicle A, whose engine is to be started.
- b) Connect the other end of the red wire to the positive pole of the vehicle's B battery.
- V) Connect the black wire to the negative pole (-) power battery B.
- G) Connect the other end of the black wire to a good ground on the receiving vehicle.
Attention! Do not connect the wire to the negative pole of a discharged battery.
A metal part that is firmly screwed to the power unit is best suited for this. When connecting a wire to the negative pole of a discharged battery, it, under adverse conditions, may explode due to sparking and the formation of explosive gas.
Attention! The terminals of the connected starting aid wires must not be in contact with each other. The wire terminals from the positive battery terminal must not touch metal parts (bodies or frames), forming a closure on «mass» (-).
7. Start the car engine with the discharged battery and leave it to idle. When starting, operate the starter continuously for no more than 10 seconds, as the terminals and wires heat up due to the high current consumption. Therefore, it is necessary to provide «cooling» pauses of at least half a minute.
If the engine starts with difficulty, do not operate the starter for a long time unnecessarily. When starting, there is a constant injection of fuel into the system. It is better to establish the cause of the difficult start.
After successfully starting the car engine with a dead battery, leave the engine to idle and do not dismantle «feeding bridge» for at least 3 minutes.
To avoid voltage peaks when disconnecting auxiliary wires, turn on the passenger compartment airflow and rear window heating on a car with a discharged battery. Do not turn on the headlights, otherwise their bulbs will burn out from the voltage drop.
8. Disconnect the auxiliary wires after starting the engine in the reverse order of connection. Black wire first (-) disconnected from the receiving car, and then from the battery supply. red wire (+) is first disconnected from the battery of the supplying vehicle, and then from the receiving vehicle.
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