Battery for VAZ 2107: device, selection, installation

The vehicle's electrical network is powered by two sources - the battery and the generator. The first activates the starter, the second supplies voltage only after the engine is started. Like any part, the battery requires replacement over time.

First of all, the ability to start the engine in cold weather depends on the condition of the battery. Therefore, the question “Which battery is best for a VAZ 2107 car?” All owners of the “Seven” ask from time to time.

Choosing a battery for a VAZ-2107 car

On the VAZ-2107, the on-board electrical network is powered by two sources - the battery and the generator.
The first provides power until the engine is started, the second - after starting. But if a generator is a mechanical device that, with proper care, can work for decades, then the battery wears out over time to such an extent that it can no longer perform its functions. The main purpose of the battery is to supply electricity to the electric motor (starter) so that it can spin the crankshaft and elements of the ignition system so that the engine starts, after which the generator takes over the role of the power source.

In addition to the starter and ignition system, the battery supplies power until the engine starts and the rest of the car is consumed, and also provides recharge when the load on the on-board network is large and the generator cannot cope.

What is it and what is it for?

A car battery is a power source that produces electricity through a chemical reaction and stores it for use in the car.

Designed to activate the starter when starting the engine. In addition, control circuits and the on-board network are powered from it when the engine is turned off.

Battery features

If we look at a battery in a simple way, it is a storage facility for electricity, which it releases when needed and then replenishes it from the generator. All its work is based on chemical processes that gradually destroy it. After a certain period of operation, the degree of damage to the internal elements of the battery reaches such a level that it is no longer able to retain and deliver the charge required to start the engine.

The service life of rechargeable batteries depends on many factors. Under some conditions, a good VAZ-2107 battery can last 7-8 years, but under others it won’t last even 5 years. But in any case, if the battery is not able to hold a sufficient amount of energy and quickly discharges, then it needs to be replaced, since these elements cannot be restored.

So, the battery has already exhausted its resource and it’s time to go get a new one. At the same time, it is important to choose the right battery for the VAZ-2107 car, because not every battery is suitable for installation on this car.

According to GOST, the VAZ-2107 must be equipped with a battery marked 6ST-55 (6 - number of cans, ST - starter, 55 - capacity in Ah). In Soviet times, this was quite enough to make a choice. Now the battery market is very extensive, and the indicated marking is no longer used, although the capacity indicator is still needed.

When determining which battery is best for the VAZ-2107, we will not consider existing types, but will focus on the most common ones - acid ones, which perform their functions perfectly on this car.

Battery features for different “Seven” models

VAZ 2107 is a sedan with four doors. It began to be produced in 1982 on the basis of the Lada 2105 at the AvtoVAZ plant. The main components and internal structure of the VAZ 2107 have not changed. The “Seven” differs from the VAZ 2105 in its interior trim, plastic bumpers, chrome-plated radiator grille, installation of an oil pressure indicator, tachometer, changing the speedometer to 180 km/h, and the shape of the hood. In 2001, a new model VAZ 2107 - 21074 appeared with a 1.7 liter engine producing 77 hp. With.

The battery capacity depends on the type and size of the engine. Since 1982, the “Seven” has been updated with new types of engines.

Engine volume, cubic meters cm

Manual Transmission

The Semerka car is equipped with a 6ST-55 battery in accordance with the state standard. It is located near the engine, in front of the car on the right. The energy storage device has the following features:

The energy storage device consists of 6 batteries with a voltage of 2 V, which are connected in series. The batteries are placed in isolated parts of the energy storage device filled with electrolyte. The energy storage compartments are equipped with holes and are closed with lids. At the edges of the case there are positive and negative terminals to connect the electrical wiring of the “seven”.

Selection options

In order to choose a VAZ-2107 battery among the many offers, you should take into account several factors, namely:

If you take all of the above into account, choosing a battery and installing it on a car to replace a worn one will not be difficult.

As for the type of battery, according to this parameter, batteries can be divided into:

Serviceable batteries are equipped with special plugs on the top cover.

In such a battery, it is possible to open each of the cans, check the electrolyte level and, if necessary, replenish it and bring the density to the required level. On the one hand, this is a positive quality, since periodic maintenance allows you to extend the service life. But on the other hand, such a battery is another element that requires attention.

In maintenance-free batteries, the case is sealed and they do not require any intervention from the driver, the only thing is that you will have to periodically recharge it.

Capacity

Capacity is one of the most basic parameters of any battery (measured in Amp-hours). If we look at this term in a simple way, it indicates how much energy the battery holds. This parameter is determined using a long-term discharge (20 hours) under strictly established temperature conditions (+25 degrees C).

According to GOST, a battery with a capacity of 55 Ah is installed for the VAZ-2107, but this is more of a recommendation than a strict requirement. A battery with both 50 Ah and 60 Ah will work well on this car. But here it should be understood that the higher the capacitance value, the more energy it will contain. Taking into account the fact that additional consumers are now installed on cars (audio system, all kinds of auxiliary equipment), additional Amp-hours will not be superfluous.

One more nuance regarding capacity. The VAZ-2107 was produced with power plants that used different power systems - carburetor and injector. So, for the carburetor version you need a battery with a larger capacity than for the injection version. This is explained simply - the injector makes it easier to start the engine under different conditions, which means the starter consumes less energy. Therefore, in the case of an injection power system, a battery with a capacity of 50-55 Ah will be quite sufficient; for the carburetor version it is better to install a 60 Ah battery.

Generator repair

If the generator set has been dismantled and problems are found in its component parts, work should be done to replace them. Repair of the VAZ-2107 generator is carried out as follows:

• fix the impeller with a screwdriver;
• unscrew the fixing bolts;
• remove the pulley parts;
• unscrew the bolts securing the cover. Take out the pin;
• use a hammer to knock off the stator cover;
• remove the bushing located under the front cover, which also needs to be removed;
• knock out the rotor with gentle blows of a hammer;
• unscrew the nuts securing the rectifier to the winding terminals;
• unscrew the nut with the abbreviation “30” and remove the washer;
• replace structural elements;
• assemble the device;

This completes the work of replacing generator parts.

Video repair of VAZ 2107 generator

For more information about generator repair, watch the following video:

Starting current

Starting current is a battery power parameter. It indicates the maximum current value the battery can deliver in a short period of time. Essentially, this is an indicator of the battery’s ability to start the engine under unfavorable conditions (in this case, low temperature).

When selecting a battery according to this criterion, you should take into account the region in which the car is operated. So, for the southern regions, you can especially consider the values ​​of the starting current (a battery with average values ​​is also quite suitable). But for northern regions, the higher the starting current value, the better, since the likelihood that the battery will be able to start the engine in severe frosts is greater.

Polarity

The polarity of the VAZ-2107 battery characterizes the position of the battery terminals for connection to the on-board network. Currently, batteries are produced in two types according to polarity - direct and reverse. This parameter seems to be minor, but if it is not taken into account, problems with connecting to the network may arise.

The polarity is determined very simply - turn the battery towards you “facing” (the terminals should be located closer to you) and look where the “positive” terminal is located. If it is on the left, the polarity is straight, on the right, it is reversed.

Since direct polarity was used in the Soviet Union (it is also additionally called “Russian”), it can be understood that this is what is used on the VAZ-2107. That is, when choosing a battery for this car, you need a battery whose “plus” is located on the left (but it is important to correctly place the battery in front of you when determining the polarity).

Suitable batteries for LADA Granta: original and analogues

In the catalog of original LADA spare parts, starter batteries for Granta are indicated by the following codes:

• 55 Ah: 21 080-3703010-05, 8450001325;
• 64 Ah: 21 902-3703010-10, 8450003761.

Suitable substitutes are given in the table.

For 8 valve internal combustion engines

For 16 valve internal combustion engines

Which battery is better: original or replacement? It is preferable to install analogues that are suitable in terms of parameters: they cost less, and their service life directly depends on the price. If it approximately matches the original, then it will last as long as the original spare part.

Dimensions

Let's move on to the overall parameters, since they also need to be taken into account. In the engine compartment there is a special area with fasteners for installing the battery. If you choose the wrong battery size, it may simply not fit on this site, which is why the reliability of its fastening will be in question. The required dimensions of the VAZ-2107 battery are as follows: length - 242 mm, width - 175 mm, height - 190 mm. Let us immediately note that most batteries with a capacity of up to 60 Ah have exactly these dimensions.

So, we have determined that for the VAZ-2107, a battery with a capacity of 50-60 Ah, with direct polarity, will be optimal. As for starting currents, we focus on the weather conditions of the region in which the car is used.

As for price categories, it all depends on how much you can spend on the battery. If finances allow, then it is better to take batteries from well-known manufacturers (BOSH, Mutlu, etc.), although they are more expensive. But there will be confidence that the battery characteristics correspond to the declared ones. You can, of course, buy a battery from a little-known manufacturer, but no one will guarantee the quality and compliance of the characteristics.

Selection criteria and procedure

When replacing a battery, it is best to use an identical copy of the existing battery - the same brand with similar performance. However, sometimes batteries are replaced with more powerful ones due to a significant increase in load or the installation of additional electronics. Therefore, it is necessary to analyze the work in the old mode and make adjustments in case of increased load in the future - both in terms of travel intensity and electricity consumers. In addition, you need to highlight what to pay attention to in order to avoid mistakes when choosing.

1. Clarification of the key parameters of the existing product, which are taken into account when choosing a new battery:

2. Taking into account the operating conditions of the car when traveling:

3. Choosing a brand in accordance with preferences and the rule - well-promoted brands are more expensive. If the price difference is critical, inexpensive and reliable models from lesser-known manufacturers are chosen.

4. Calculation of financial capabilities and search for an “average” battery with good parameters.

5. Mandatory study of comparative characteristics and rating materials, for example, this review.

Features for VAZ

1. VAZ 2105-07 – depending on the engine type:

2. VAZ 2109 – climatic conditions are taken into account:

3. VAZ 2110-12 - equipped with a maintenance-free lead-acid product with a capacity of 55 Ah with liquid electrolyte. In case of replacement, it is necessary to take into account the installation of additional equipment that consumes more energy.

4. VAZ 2114-15 – models with a capacity from 55 to 62 Ah are suitable. When choosing between maintenance-free and classic batteries, according to motorists, most prefer the first option.

Battery for VAZ 2107

On the VAZ 2107, the on-board power supply comes from the battery and generator. The battery is the source of energy when the engine is turned off, and the generator starts working after starting the power unit. The battery loses its function over time, causing it to be unable to crank the starter and start the engine. In addition to the fact that the battery requires replacement, you need to know with what parameters and how to install the battery on your “seven”.

What is it used for?

The main purpose of the battery is to power the starter to crank the engine and supply voltage to the ignition system to start the engine. Until the engine starts, the battery provides power to all consumers of the car (lighting, heater, car radio, etc.). In addition, if during engine operation a large load is placed on the on-board network and the generator is not able to produce the required current, replenishment is also carried out from the battery.

Battery parameters for VAZ 2107

Since the battery life is 5–7 years, sooner or later you have to face the need to select and replace a part. First of all, you need to know the parameters of the battery that the Zhiguli of the seventh model is equipped with, since the first power source that comes across cannot be installed on the car. According to GOST, the VAZ 2107 must be equipped with a battery marked 6 st-55. By deciphering the designation, you can determine that the number of cans is 6, ST is the starter battery, 55 is the capacity in Ah. However, on modern batteries such markings are almost never used.

Common faults

Battery life is 5-7 years. During operation, malfunctions are possible; they are detected by the sensor. If problems arise with the battery, then thanks to the sensor this situation is reflected on the dashboard: the battery charge arrow begins to twitch, and a light may come on.

Charging arrow on the seven

During operation, the following device malfunctions are possible:

1. There may be a faulty starter or alternator. If the starter malfunctions, an additional load is placed on the battery, since more electricity is required when starting the engine, so the VAZ 2107 may not be charged enough. If the generator does not work, the battery does not receive recharging, but only consumes electricity.
2. Mechanical damage causes the device to leak. They are detected by visual inspection.
3. If the battery discharges quickly after recharging and the battery lamp may come on, the charging pattern may be disrupted. It is possible that the charging current parameters were incorrectly set or the charging time was insufficient and the battery did not have time to fully recover.
4. If the battery is very discharged, the car arrow starts to jerk, the battery light comes on, this means that the device needs to be recharged.

It is better to purchase a new product in a specialized store of trusted manufacturers. During operation, you should monitor the charging, which is reflected using the appropriate sensor. If the charging light on the dashboard lights up, the arrow twitches, the battery needs to be recharged.

If you charge your VAZ 2107 battery on time, then it will last longer. It is also necessary to perform maintenance at least once a year.

Battery related problems

While operating the Seven, the car owner may encounter problems with the battery. In most cases, they come down to charging problems. The most common reasons for lack of recharging are a broken belt or failure of the generator diode bridge, relay regulator, or battery charge circuit fuse.

How to install correctly on a car

Removal and installation of the power supply on the VAZ 2107 is carried out in most cases when recharging, replacing a part, or carrying out repair work in the engine compartment, if the presence of the battery will interfere. To install the battery you will need keys 10 and 13. When everything you need is at hand, you can begin installation:

What happens if you reverse the polarity?

Although the terminals for connecting the energy source have different diameters, sometimes there are situations when car owners manage to confuse the polarity. If the battery is connected incorrectly on a VAZ 2107, the diode bridge of the generator and the voltage regulator may fail, and some fuses may blow. An incorrect connection cannot be overlooked because it causes smoke and a burning smell. If such a problem occurs, you must immediately disconnect the terminals from the battery to avoid serious consequences.

The battery discharges quickly

One of the problems that manifests itself on the VAZ 2107 and other classic Zhiguli models comes down to the battery being discharged after parking, that is, literally overnight the power source is discharged to such an extent that it is unable to crank the starter. The reason for this phenomenon lies in insufficient battery charge or high leakage current. First you need to check the following:

How to secure the battery so it doesn't get stolen

There are several effective and, at the same time, simple ways to secure the battery so that it does not get stolen:

1. An effective barrier to theft will be to make it more difficult to install the battery itself. Some of the methods are done by hand. Replacing regular battery nuts with the same ones with a secret is the simplest way to protect the battery from thieves. It will force attackers to tinker and sometimes retreat.
2. You can do another manipulation with the same fasteners. Place two nuts with a locknut instead of the one that clamps the batteries. Remove from the first faces. Tighten them using a gas wrench. Dealing with this design will be very difficult and time-consuming.
3. Non-standard fastening will create additional problems for thieves. It could be a rubber band from the expansion tank. A battery fixing structure similar to the image below will be more complex and reliable. To prevent the battery from being stolen, instead of the top beam there is a block with holes for pins and nuts as in the second picture. The latter should only be unscrewed with a socket wrench and should be inaccessible to pliers.

Mounting the battery VAZ 2107

The VAZ 2107 power supply is installed in the engine compartment on the right side on a special platform and is secured using a strip. This way the battery is fixed, which prevents it from moving around the site while the car is moving.

How to prevent theft

Owners of Zhiguli cars often face the problem of battery theft, which is due to the considerable cost of this part. The fact is that opening the hood of a “classic”, especially for an experienced attacker, is not particularly difficult. How to protect yourself and your car from such a situation? There are several options to solve the problem:

However, the methods listed are not always suitable for everyone. In this case, to protect the battery from theft, you can resort to additional security measures:

Not every car owner will agree to resort to the first option, since this will require welding brackets for a padlock onto the hood, which will ruin the appearance of the car. Not everyone will like to carry the battery with them all the time. There remains an option for a more reliable battery mount. One of the options for protecting a power supply from theft is to use fasteners with a secret, which will force the attacker to spend more time, and sometimes even retreat from their plans. The option of soldering the fastener is also possible, but it should be borne in mind that this method will create serious problems for the car owner in conditions of force majeure.

Some car enthusiasts modify the platform for the battery, making it in the form of a box and installing a lock, for which you will need to use a welding machine. There is another way to complicate the theft of a part - strengthening it with a chain and installing a padlock. It is important to understand that the most effective protection is a set of measures that will prevent the theft of the battery from the car.

Recommendations when choosing a battery

To ensure that after purchasing a new battery the car does not require even greater maintenance costs, you should follow some rules.

1. The first thing to do to properly replace this car part is to determine the optimal capacity that is suitable for the power of a particular engine. The fact is that we are dealing with various modifications of this VAZ model, in which engines with different characteristics can be installed.
2. The second thing is to decide on the location of the terminals. In the VAZ 2110 car, the layout is straight, and accordingly, the battery must be selected in the same way. When choosing the reverse one, you will have to turn the battery, and in this case it is not a fact that the installation will be successful.
3. Third, you should measure the parameters of the battery compartment: length, width and height so that the new device fits in the intended place.

If the car is used mainly at sub-zero temperatures, it is worth choosing a capacity slightly larger than that of the factory battery. The type of battery on the VAZ 2110 also matters (injector or carburetor, it doesn’t matter) - the manufacturer installs lead-acid batteries. They are maintenance-free, but have a long service life - about 50 complete charge-discharge cycles.

Transferring the battery to the trunk

On the VAZ 2107, the power supply is normally located under the hood. Some owners of “Sevens” and other “classics” transfer the battery to the trunk, explaining this with the following advantages:

Regardless of your goals, you need to take into account that getting the battery out if the trunk is fully loaded will not be easy. In addition, harmful fumes are released from the energy source. To carry and securely secure the product in the luggage compartment of the “seven” you will need:

Photo gallery: consumables for transferring the battery to the trunk

The procedure for transferring and installing the battery in the trunk boils down to the following steps:

VAZ 2107 battery charging diagram

One of the main electrical circuits of a car is the battery charging circuit. As the owner of a VAZ 2107, you need to have at least a minimal understanding of the principle of charging the power source, what elements are involved in this circuit, which will allow you to take appropriate actions in the event of problems.

The above diagram makes it clear that a malfunction in the battery charging circuit is possible anywhere. This could be, for example, problems with the brushes of the relay regulator or oxidized contact on any part of the electrical circuit. As a result, the generator will not be able to provide a full charge to the battery, which will lead to its gradual discharge.

When choosing a battery for a VAZ 2107, you must adhere to the recommended parameters. This will ensure trouble-free installation and operation of the product for a long time. If you have problems charging the battery, after reading the diagram, you can independently find and fix the problem.

Source

Device and principle of operation

A conventional 12 V battery is a set of individual 2 V cells assembled in one case and connected to each other in a series manner.

The principle of operation is the generation of electric current during electrochemical reactions of lead-containing elements. When there is an external load on the contacts, the interaction of the electrolyte with lead oxide begins. During a chemical reaction, sulfate is formed from lead metal. When discharged at the cathode, lead is oxidized, and lead oxide is reduced at the anode. When charging, the reverse process occurs. When lead sulfate is consumed, electrolysis of water occurs, and oxygen and hydrogen are released at the anode and cathode, respectively, creating a boiling effect. This should not be allowed due to an increase in the density of the electrolyte, water consumption and the risk of an explosion of the explosive mixture (oxygen and hydrogen).

To maintain the required electrolyte level, distilled water is added.