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.
Battery VAZ 2107
The battery's job is to supply an electrical charge when the engine starts and replenish it from the generator. Its operating principle is based on chemical processes that gradually destroy lead plates. After a certain period, depending on the quality of the battery and operating conditions, the degree of destruction of the cells reaches a value at which they cannot store a sufficient amount of charge. The battery capacity drops and the current supplied by it becomes too low for the starter to start the engine. Even a good battery for a VAZ 2107 has to be changed at least once every 7 years. If you do not follow the operating rules or buy lower-quality batteries, you will have to change them even more often than once every 5 years. The manufacturer recommends installing a 6ST-55 battery (a starter battery with 6 banks with a capacity of 55 Ah) on the VAZ 2107. This marking complies with Soviet GOST standards and is practically not used today. The only parameter that is still present in the labeling today is the capacity indicator. Therefore, when purchasing, you should focus on more specific parameters.
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 type
There are serviced and maintenance-free batteries on the market. In the first type of battery, you can open the cans to check the level and density of the electrolyte. Maintenance-free batteries are hermetically sealed and require only regular charging, which can be done automatically with a working generator. On the one hand, a serviceable battery provides the driver with more opportunities to extend the battery life. On the other hand, maintenance-free batteries do not require additional time and the purchase of additional devices and materials for routine maintenance.
Polarity
This term refers to the location of the battery terminals. There is a distinction between direct and reverse polarity. If you turn the battery towards you with the side on which the terminals are located. then with direct polarity the “plus” will be on the left, with reverse polarity it will be on the right. What is the polarity of the battery on a VAZ 2107? The “seven” is equipped with a battery with direct polarity, which was used on cars manufactured in the USSR..
Serviceable or unserviceable battery
Now you can find 2 different types of batteries on the market:
- Maintenance-free
are modern batteries that do not require topping up water or electrolyte during operation; - Serviceable
– can be additionally refilled with water or electrolyte if necessary.
It seems most optimal to use serviceable batteries on the VAZ 2107. They withstand operation on older machines with unstable electrical systems much better.
Conclusion
.Every few years the car battery needs to be replaced. Otherwise, you simply will not be able to start the car. At the same time, the question often arises of which battery is best for the VAZ 2107 car. After all, there are now quite a lot of different options in stores, which makes the choice much more difficult.
Recently I had to change the battery in my car because in the morning, after several attempts to start the engine, it refused to work. And literally a few days later my father calls and says that the battery on his “Seven” also “ran out.” Since I was going to go to my parents the other day, I decided to buy something better in the city, and they don’t have any choice there at all.
In general, the car used to have the following battery installed, which is shown in the photo below:
To be honest, I didn’t like the quality of this battery, my father often struggled with it, and in severe frosts I constantly had to bring it into the house at night in order to start the engine in the morning without any problems. Although it has a capacity of 55 Ampere/hour, and the starting current is considerable and amounts to 460 Amperes, for some reason it seems to me that these figures are a little overestimated by the manufacturer, especially the second one.
So, when I was choosing a battery this time, I didn’t want to look at cheap options. Good brands on display included Bosch and Varta.
- Bosch - I think everyone is familiar with this manufacturer, since it makes almost everything, from auto parts to power tools, as well as household appliances.
- Varta is also a German brand, but it purely specializes in the production and sale of rechargeable batteries only. This brand is considered the best in the world in its business and produces premium batteries.
VAZ 2107 battery capacity
The higher this parameter, the more charge the battery can hold. With the 55 Ah recommended by the manufacturer of the “seven”, you can install a 50Ah or 60Ah battery. In summer the difference will be unnoticeable, but in winter a battery with more power will perform better. Also, a large capacity will help on carburetor VAZ 2107 models. The fact is that the injector makes it easier to start the engine, so the starter consumes less power when starting the engine. Despite the general recommendations of 55 Ah, the battery capacity on injection models can be 50-55 Ah, on carburetor models - 55-60 Ah.
Video “How to choose a battery”
This video explains when and how to choose a battery (the author of the video is NarodTV).
Quite often, owners of “classic” cars are interested in which battery is better for the VAZ-2107 car - an injector or a carburetor. After all, you want to get the maximum effect from a new battery, and the new element should cover all needs without exception.
After the car battery has worked for 2-3 winters, experts recommend replacing it. We will consider further what criteria should be taken into account when choosing, taking into account the advice of professionals in their field.
Battery starting current
This parameter characterizes the power of the battery and indicates the maximum current that the battery is capable of delivering. The higher the current, the better the starter will start the engine in the cold. In the southern regions, batteries with average starting current are sufficient, while in the north you need to install batteries with a high starting current.
VAZ 2107 battery dimensions
Under the hood of the VAZ 2107 there is a special platform for installing the battery. When selecting a battery, you must take into account its size and the distance between it and the hood. A large battery will not fit on the platform and cannot be securely fixed. The size of a standard VAZ 2107 battery is 242x175x190 mm. Most batteries with a capacity of 50-60 Ah on the market fit into these sizes. However, it is better to check the battery dimensions before purchasing.
VAZ 2107 battery price
This indicator depends on the manufacturer, quality, capacity and other parameters and circumstances. It is better to buy a relatively expensive battery from one of the well-known brands (Bosch, Mutlu, etc.) and know that there will be no problems with starting the car for the next 7 years. You can save money and buy a less “branded”, but no less high-quality battery from simpler manufacturers. The only thing I would like to warn against is buying cheap batteries from unknown or little-known manufacturers. In this case, there can be no question of any guarantees of quality and compliance of the battery with the declared characteristics. Accordingly, excessive savings will result in unnecessary expenses.
Useful to read
What to do if the battery is dead
If charging does not occur, the lights are dim, or do not light at all when the generator is turned off, urgent action must be taken. The following methods can be used:
- use a starter-charger - but not all drivers have this;
- contact other vehicle owners - connect your car to the battery;
- try to start the engine “from the pusher” - in this case the generator shaft will be spun up by the cranking engine.
It is important to remember: the battery has its own resource. It depends on the parameters of the device itself, as well as the operating mode. But it is worth noting that if the battery has stopped charging, then it will most likely be simply impossible to restore its operation. It is best to purchase a new battery from a reputable auto store.
How to determine when replacement is needed
Now let's look at the signs indicating that the battery has reached the end of its life and needs to be replaced.
- The car stopped starting reliably (strained “cranking”) at low temperatures without obvious changes in operating conditions.
- The battery drains quickly even with not a particularly long period of inactivity (a day or two).
- A fully charged battery is enough for 3-4 attempts to start the engine.
- The battery is “boiling”, although the charging current is within normal limits.
- Under a relatively light load (high beam, etc.), after five to ten minutes the voltage at the terminals drops by more than 0.2–0.3 volts. The engine must be turned off.
- The voltage at the terminals when placed on stationary charging suspiciously quickly reaches 14 V.
- After starting during a long trip, the battery does not have time to restore energy.*
* In this case, the cause may be not only a “dead” battery, but also a malfunction of the generator or relay regulator. Diagnostics of the vehicle's on-board equipment is required.
Advice for car owners
When choosing a battery in a store, before paying for the purchase, it must be checked using a load fork or tester. Specialized stores always have such equipment in stock.
Selecting a battery for the store
The no-load voltage should be in the range of 12.5 - 12.7 V. A voltage below this value indicates that the battery needs to be recharged, but you should not take risks, and it is better to take another battery if possible.
When connecting a load of 150 - 180 Ah to the battery for 10 seconds, the voltage should not fall below 11 V. It is better to avoid purchasing a battery that does not hold its parameters.
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:
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:
