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. Damage to the vehicle's electrical equipment is also possible.
- do not allow sparks or open flames in the immediate vicinity of the battery,
- Protect the booster battery wire from damage from rotating parts such as radiator fan blades.
The cross section of the wire for easy starting of an internal combustion engine with a volume of up to about 2.5 liters must be at least 16 mm2 (diameter about 5mm).
For diesel engines and internal combustion engines with a working volume of more than 2.5 liters, the cross section must be at least 25 mm2. In this case, you need to focus on a car with a discharged battery. The cross section of the wires is usually indicated on the packaging of the wires of the launch investment.
Both batteries must have a nominal voltage of 12 volts.
A discharged battery can freeze even at -10°C. A frozen battery must be soldered before connecting the start aid wire.
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 consumers of the on-board network.
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 order (see illustration):
- A) Connect the red insulated wire terminal to the positive battery terminal of vehicle A, whose engine is to be started.
- b) Connect the terminal on the other end of the red wire to the positive pole of the vehicle's B battery.
- V) Connect the black insulated wire terminal to the negative pole (-) power battery B.
- G) Connect the other end of the black wire to a good ground X of the receiving vehicle.
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.
8. Disconnect the auxiliary wires in the reverse order of their connection. Wire terminal first (-) with black insulation is disconnected from the receiving car, and then from the battery supply. Red wire 1 (+) is first disconnected from the battery of the supplying vehicle, and then from the receiving vehicle.
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