The correct process of "lighting".

Details Won't start, battery dead

— Hello! I drive a 2009 Porsche Cayenne. The car stood for six months and sat down on the battery and now even "light up" does not work. Tell me, how can I charge the battery or, in general, replace it?
Frodo. middle earth

— Good afternoon, Frodo! Let's try to answer in order.

1. Your car has a battery (accumulator) with a capacity of 110 Ah. Typically manufactured by Moll. These batteries have one feature: they do not like a "deep" discharge. It took us 3 days to charge such a battery (charged out of sporting interest).

2. In this case, we do not recommend "lighting up" the car. Firstly, the battery will not be charged anyway, and secondly, even if you manage to start the car, for example, using a “booster”, then in no case should you disconnect the “booster” while the engine is running. The fact is that the battery in the electrical system of the car is, in a way, a stabilizer, because. it is completely discharged, it will not cope with this function, and when the “booster” is disconnected, the current characteristics will be unacceptable. In this case, for example, the instrument panel will blink as if 220 volts were connected to it. Those. such actions may damage the electronics of your vehicle.

3. If you decide to charge the battery, we advise in your case to remove the battery from the machine, put it in a well-ventilated area (hydrogen sulfide gas is released from the battery during charging). Why do you need to remove the battery? You will not be able to control the charging process all this time (this is very long). And we do not recommend leaving a working charger in the car unattended. No one will give a 100% guarantee that nothing will happen to him.

4. Battery replacement. Loosen the driver's seat bracket bolts.

To access them, you need to remove 2 plastic plugs on the floor, under the rug, on the left and right under the seat and the panel that is above them. Then fold the seat back (this is provided for by the design). You will have access to the battery.

5. After replacing / charging the battery, you need to make a number of necessary settings. They are described in the owner's manual for your vehicle.

6. P.S. All of the above is suitable for owners of Audi Q7 and Wolkswagen Touareg.

Charging / battery replacement for Porsche Cayenne (Porsche Cayenne), Audi Q7 (Audi), Wolkswagen Touareg October 29th, 2011

— Hello! I drive a 2009 Porsche Cayenne. The car stood for six months and sat down on the battery and now even "light up" does not work. Tell me, how can I charge the battery or, in general, replace it?
Frodo. middle earth

— Good afternoon, Frodo! Let's try to answer in order.

1. Your car has a battery (accumulator) with a capacity of 110 Ah. Typically manufactured by Moll. These batteries have one feature: they do not like a "deep" discharge. It took us 3 days to charge such a battery (charged out of sporting interest).

2. In this case, we do not recommend "lighting up" the car. Firstly, the battery will not be charged anyway, and secondly, even if you manage to start the car, for example, using a “booster”, then in no case should you disconnect the “booster” while the engine is running. The fact is that the battery in the electrical system of the car is, in a way, a stabilizer, because. it is completely discharged, it will not cope with this function, and when the “booster” is disconnected, the current characteristics will be unacceptable. In this case, for example, the instrument panel will blink as if 220 volts were connected to it. Those. such actions may damage the electronics of your vehicle.

3. If you decide to charge the battery, we advise in your case to remove the battery from the machine, put it in a well-ventilated area (hydrogen sulfide gas is released from the battery during charging). Why do you need to remove the battery? You will not be able to control the charging process all this time (this is very long). Leave a working charger
in an unattended car, we do not recommend. No one will give a 100% guarantee that nothing will happen to him.

4. Battery replacement. Remove the bolts securing the driver's seat bracket (2 star-type bolts).

To access them, you need to remove 2 plastic plugs on the floor, under the rug, on the left and right under the seat and the panel that is above them. Then fold the seat back (this is provided for by the design). You will have access to the battery.

5. After replacing / charging the battery, you need to make a number of necessary settings. They are described in the owner's manual for your vehicle.

6. P.S. All of the above is suitable for owners of Audi Q7 and Wolkswagen Touareg.

In general, in such cases, our mechanics solve this issue as follows: they change the battery or offer the car owner to charge the battery, and install their own, serviceable battery for the time of charging.

If you failed to charge the battery yourself, call us by phone in Moscow: 545-64-06. We
we will try to help you with advice or, if necessary, we will send you a car of our auto technical assistance.

www.rtavto.ru

How to "light up" a car? This question can arise at any time, but it becomes especially relevant in the cold season. After all, at low temperatures, even new batteries are discharged much faster. There are a number of nuances that you need to know before you "light" the battery from another battery. In particular, technical equipment, procedures, precautions. We will cover all this and more in detail.

First of all, it is necessary to determine the situation when it makes sense to “light up”. The procedure is performed only in case of battery discharge (full or partial). In this case, the starter is spinning at insufficient speed or. If the starter works fine, but the car does not start, then you need to look for the cause of the malfunction elsewhere.

Errors when "lighting"

Here are some common mistakes that inexperienced car owners make. We have tried to rank them in order of safety priority.

1. "Light up" from a car with a running engine.
2. Do not turn off the ignition and / or electrical appliances in the process of "lighting up".
3. They “light up” from a battery that has a lower capacity than that which their battery has.
4. Do not follow the sequence of actions (algorithm for connecting individual contacts).
5. Use low-quality wires or wires with a small cross-sectional area, poor-quality contacts on the "crocodiles", fragile insulation.
6. They do not adhere to safety rules (including fire safety).

In order to avoid these errors, and to clarify for car owners, we bring to your attention a clear algorithm, following which you can safely start the engine of your car from another battery.

The correct process of "lighting"

Wiring diagram when "lighting up"

Now let's move on to the consideration of the algorithm, how to properly give a "light" to the car. The sequence of actions will be as follows:

1. Before the procedure, the engine of the donor car must run for about 5 minutes at 2000 ... 3000 rpm. This is done so that the battery is additionally recharged.
2. Before "smoking" engines, ignition, as well as all electrical appliances of both vehicles must be turned off! This is a mandatory requirement, which we will discuss with you later.
3. Connect the ends of the "positive" wire first to the battery of the donor car (from which they “light up”), and then to the recipient car.
4. Connect the ends of the "negative" battery wires. First, to the "minus" of the battery of the donor machine, and then to any metal surface cleaned from paintwork (for example, an engine block) or to a ledge on the machine body. However, remember that at the time of starting the engine, there is a possibility of a spark on the “minus”, which can get on the accumulation of oil and dirt, which in turn can cause a fire and even an explosion. Therefore, observe fire safety, and "light up" in the open air or in a well-ventilated area. If you did not find a suitable protrusion, then connect the wire to the "minus" of the recipient's battery.

   Be sure to observe the polarity! One wire should connect two "pluses", and the second - two "minuses". If you reverse the polarity, a short circuit will occur, and there is a high probability of failure of all vehicle electronics. And this is fraught with costly repairs!

5. Sit on the steering wheel of the recipient vehicle and try to start the engine. If the battery of the donor car is in order, and you did everything right, then the engine will start without problems.
6. Set the number of engine revolutions within 1500 ... 2000 rpm, let it run for about 5 minutes so that the battery gains some capacity.
7. Disconnect the wires from both batteries in reverse order (that is, first disconnect them from the recipient, and then from the donor, first remove the "negative" wire, and then the "positive"), pack them, close the hoods of the cars.

"Light" the battery from a battery with the same voltage (most cars have 12V, but trucks can have 24V, motorcycles can have 6V). Failure to do so will result in discharging and possible battery failure.

How to "light up" a car

If it was not possible to “light up” the car within a few seconds, then you should not “torment” the battery. Try to do the following:

1. With the wires connected and the engine and ignition off at the recipient, start the donor engine.
2. Let it run for about 10 minutes at 2000...3000 rpm. This will charge both batteries.
3. Turn off the engine, ignition and all electrical appliances of the donor. Try again to start the recipient's engine.

Usually, diesel cars have a larger battery capacity, so you can “light up” them, but not all gasoline cars can give them their charge.

Thus, it is not difficult to “light up” a car from another battery correctly. Now let's look at a few common myths and useful tips.

Additional information and myths

Connecting the "minus" to the engine housing

A common question among motorists is whether it is possible to light a cigarette from a running car? There is a very definite answer to it - NO! This is absolutely not recommended. Let's try to explain why...

The fact is that at the moment the engine is started, switching processes occur, the result of which is a significant current surge. When the engine is turned off, then only is involved in the circuit. If the engine is running, then a generator and all other current consumers (including an expensive ECU and other electronics) are connected to the circuit. And for them, sudden surges in current and voltage are very harmful, because they can disable them.

When "lighting up" at the donor car, it is desirable (but not necessary) to remove the negative terminal from the battery. This will ensure complete isolation of the electrical circuits of the two vehicles from each other.

Remember that you can not ask the owner of the first car that caught your eye to “light it up”. Ideally, the capacity of the donor battery should be at least (ie, equal to or greater than) the capacity of the recipient battery. Otherwise, there is a risk of a complete discharge of the donor, and even its failure. And at the same time, most likely, you will not start your car. In other words, you can “light up” a small car from an SUV, but vice versa - you can’t!

Also, you can’t “light up” a battery from one that heats up, emits a strong acidic smell, or electrolyte has leaked out of it.

It is not recommended to "light up" from old or discharged batteries. Therefore, if your driver colleague refused your request, arguing that the battery of his car is old, then this should be treated with understanding.

Today, car dealerships offer devices for emergency starting batteries, the so-called starters. They are an analogue of "power banks" for electronic gadgets. "Smoking" from them is simple and safe.

Another common myth is that supposedly it is impossible to “light up” a car with an electronic control unit (ECU). Actually it is not. If the engines of both machines are turned off, then there is no danger to the electronics. The only thing you have to remember, and what we have already mentioned - categorically it is impossible to “light up” from a car with a running engine.

Wire selection

To properly "light" a car from another car, you will need special wires with "crocodiles" at both ends. You can buy them at any auto shop. The cost is around 1000 rubles. For example, the price for AIRLINE is 950 rubles. Try to buy wires of medium or long length, otherwise you may experience inconvenience during operation. Factory wires have insulation of different colors, usually black and red. Black wires are connected to the "minus" on one and the second battery, and red - to the "plus".

Instead of factory wires, it is quite possible to use any improvised ones with a suitable cross-sectional area. It should be at least 16 mm² (and preferably from 20 to 32 mm²). In this case, the stripped ends must first be tied with a loop of the same diameter as the battery terminals. And then just put them on.

When buying wires for "lighting" you need to pay attention to the following nuances:

1. Cross-sectional area. The larger it is, the more current can pass through it. If you buy a frankly cheap wire with a thin core, then it is likely to burn out, especially when connected to high-capacity batteries. The minimum cross-sectional area must be 16 mm².
2. Length. A short wire is inconvenient to use. So buy products at least 3 meters long.
3. Insulation material. Do not buy wires in a rigid braid. The fact is that in the cold it will harden and may crack. Better buy wires in soft PVC insulation. They bend better and do not crack at sub-zero temperatures.
4. Clips "crocodile". It is desirable that they be copper, or at least have a copper-plated surface. This will improve their electrical conductivity. Also pay attention to their teeth. They should be sharp enough, and pulled together by a powerful spring that provides good electrical contact. Choose models of crocodiles in which the wires are securely crimped, and preferably soldered. This also contributes to good contact and reliability of the fixture.

Do not buy frankly cheap Chinese wires. They can only hurt. There were cases when in the process of "lighting up" such wires overheated, their insulation melted or smoked. Not only is it impossible to start the engine with their help, they are also a potential hazard. Therefore, we recommend that you do not save money, but buy high-quality wires for "lighting up".

Instead of an afterword

We recommend that you buy and always carry wires for "lighting" with you. They can come in handy in an emergency. Also, always keep an eye on the battery level, especially in winter. As for the process of starting the engine from another car, it is simple, and even a novice motorist can do it. Most importantly, follow the necessary rules. And if necessary, give other drivers the opportunity to “light up” on your battery.