On forums on the Internet there are conflicting answers, argued by a variety of examples. Manufacturers get away with the wording that the engine can be started with an external battery in a “coal circuit”.
However, the instructions are silent about the direct connection of the batteries of two cars with cables.
The current supply is acceptable, but undesirable for the donor cell, according to the manual expert “Behind the wheel” Mikhail. At a time when cars had a much simpler design, this was commonplace. However, modern cars are more like mobile computers, and this seemingly routine operation hides problems with on-board electronics.
Followed in detail on the license for the operation of any of the most popular models on the pazar and consultation with a specialist from the official service, Kolod ochkin choose the risk from giving to the current and most likely make mistakes, the result from which, of course, can be seriously withdrawn to the portfolio.
1. Do not charge a car whose starter was working normally before the battery was discharged. The problem is not the strength of the current, but the malfunctions due to which the car could not start. Otherwise, your battery will also “fall”.
2. Do not try to start a car with a much more powerful battery. In the heat, this number can be exceeded, since the required current will not be the devil knows how much. However, in the cold, the battery of a small car can give luggage when the starter of a large diesel engine rotates.
3. When connecting cables, minutes should not be connected first. There is no difference in the serial number on the book, but in practice it is not quite so. If they connect the negative poles first, you need to touch some metal part of the cables. The result is sparks, fireworks, smoke, and in the worst case, a fire. If the lips are tied first, there is no such opposition. If you don’t connect the negative cable directly to the terminal, it will get it.
4. Do not attempt to apply voltage to thin cables or household wires. There will be no effect, because the insulation may begin to melt before your eyes and burn you. The only case where thin wires can work is when connecting without trying to start the engine. Thus, part of the energy can be transferred from a charged battery to a discharged one. A careless attempt at ignition can only lead to an open circuit.
5. When connecting the current conductor, if possible, do not cling to the clamps directly to the current terminal of a stalled car. Try rubbing a metal piece under the engine hood to at least somewhat reduce the resistance on the current path to the starter. In modern cars, the engines of which are tightly covered with plastic casings, this is not an easy task. However, the effort is harmful, as it reduces the risk of an explosion due to the release of gases from a dead battery.
6. Do not let anyone connect the cables. Do this work alone. Make sure the cables do not rest on any moving parts such as fan blades or motor rollers. Check several times that the polarity is correct.
7. Do not disconnect the terminals from the donor car battery. Electronics in modern cars can interpret this as an emergency and lock several doors until a service technician is called. There are no problems with old cars.
8. When current is applied, the engine of the donor car does not start. A huge part of the load is taken by the battery, and electronic components often give errors when connecting external systems. Any expensive module is better not to risk it, even if you are sure that there is no harm.