Improved EFB batteries are designed for all types of ground technology. Products adapted for sophisticated conditions Works and are resistant to low charge. Branded rechargeable batteries EFB in Moscow is manufactured by new technologywhich provides for the use of high-density liquid electrolytes.
General Features EFB for Auto
New high-tech batteries for the car are designed taking into account domestic operating conditions, where modes with sharp differences in temperature prevail. By applying a new type of electrolyte, the product is considered to be more adapted and resistant to the aggressive environment. High starting current perfectly suitable for modern cars With the control system of DVS Start Stop. Due to the stability of voltage, the wiring is actually delivered from accidental appeals.
The advantages of new cars batteries:
- Universal polarity when connected.
- High service life with active use.
- Large charging capacity.
- Stability of work on any technique.
- Available product cost.
The average price for automotive acBs of this technology is significantly lower than the usual acid. In addition to the listed advantages, the feature is considered the possibility of universal use on any car and other techniques.
Where to buy a car battery profitable?
Operatively and cheap to buy goods through a special store that implements the sale of original products. Favorable sale is made with a complete set of guarantees. When choosing goods in the catalog, you can familiarize yourself with the description and characteristics. Delivery services are carried out after ordering on individual conditions.
Not so long ago, one of the domestic manufacturers began the production of batteries using EFB technology (it is worth noting in Europe such producers already mass). A completely new technology will be more accessible (let's say AGM battery) And at the same time more durable (than ordinary lead). EFB is a real future of our battery industry, for such ankb should be slightly overpayed, because they work better and more durable by about twice. Do not know what it is? Then it is an article for you ...
To start as usual definition
EFB batteries ( Enhanced Flooded Battery - Improved Battery with Liquid Electrolite) - This is an improved lead acb, in which the liquid electrolyte is used. The plates are also made of lead (they are massive than in conventional batteries), each plate is wrapped in a special "package" from the microfiber. This package is constantly impregnated with electrolyte and fits tightly to the active surface. It also protects the surface from negative consequences, such as which occurs when.
It is really a step forward, it is worth noting that they can work at times more than say lead analogs from the previous generation.
Why works longer than ordinary batteries?
Actually, everything is simple, as I wrote from above is an improved technology. Let's try in contractions (compare with the usual battery):
- Plates thicker. Due to their thickness work much longer
- Each plate is wrapped in a package of special materialwhich is impregnated with electrolyte
- Double resource, at the expense of new technologies
- More resistant to deep discharges. If the usual starter battery loses about 5% of the container with each deep discharge, then EFB variants are restored to almost 100% capacity
- At high temperatures, the corrosion activity of the electrolyte is reduced by 40%
- Work from - 50 degrees, to + 60 degrees Celsius
- Reduced electrolyte volume, about three times
- Due to the smaller volume of electrochemical fluid and the use of purified lead, charge accumulates by 45% faster
- Improved indicators, from 30 to 50%
- Safe and practically not serviced, you can even use at home, there is no electrolyte evaporation
As you can see a lot of differences, all of them increase the characteristics for the better. There are practically no negative moments, but about it a little later.
About electrolyte
Probably, now many read and think - that differences EFB. I will practically say from AGM technology! Yes, indeed, they are very similar, I would even say - very similar! However, it is a little different, the difference is right here in the electrolyte.
AGM is liquid, but it is sealed in mats from fiberglass, that is, it can be said - which is practically not poured.
At EFB, it is the same liquid as the usual starter batteries, if you want it plumps between the plates, but it is smaller, and the plates themselves are as it were in envelopes, tritely wrapped.
That is, you need to understand, EFB technology is an intermediate stage between the usual starter AKB and AGM. It is used precisely liquid electrochemical fluid!
Moreover, it is not sealed inside the fiberglass, namely physically flowing.
Where applies
You know, initially such ankb was developed for the start-stop system, now in Europe it is very relevant. The usual battery will not be able to keep many starts during the day, but the EFB technology (well, or more expensive AGM) is easily. They are very quickly charged, and therefore the generator even with a short trip will be able to compensate for the energy spent.
But manufacturers assure that applied is not limited to the car. It is also possible to apply in boats, auto-volumes, hybrids, electrocars, even in alternative systems, for energy accumulation. There are several undeniable advantages. This is a resistance to deep discharges, a quick charge and long service life.
Price and appropriate application
To be honest, many technologies, such as GEL or AGM, are not always cheap. Therefore, it is easier to buy several ordinary batteries than one - gel. And how are things going with EFB, maybe the price is also not justified overestimated?
There is no here everything is in order. The cost is about 30% more than the usual starter battery, not two or three times as in opponents.
For example, lead battery Russian production At 60 ap * h stands from 4,000 to 5,000 rubles (I take normal options, and not made from foil). The EFB will cost 6000 - 6500 rubles, not critical, is it true?
But the service life, starting currents, warranty and other pleasantness are much more. And there is a possibility that it takes place not 4 years, but at least 6 - 7 years.
What is pleasant pleased, now they launched the batteries of Russian production, that is, not only an imported product on the shelves.
Now a little video is watching
Now you know what kind of technology, and you will not slap in your eyes in the battery store.
On this end, I think my article was useful to you, sincerely your helf.
The leader in the production of batteries in Russia * and the largest supplier to conveyors of world automakers in the Russian Federation - the AKO plant has prepared a novelty for motorists: a battery with improved eFB technologycorresponding to world quality standards. Due to the improvement of the separator and the design of the plates, the life resource of the novelty is doubled compared to the usual starter battery. The battery has increased resistance to deep discharge and corrosive processes, has an extended warranty - four years. The most important thing is in new battery Starting currents are significantly increased. This product is perfectly suitable to motorists who are accustomed to getting the best and not compromise, losing in quality.
Batteries manufactured using EFB technology are becoming increasingly popular among Russian motorists. We will deal with what they are good, and we denote the scope of their use.
Imagine typical operating conditions a passenger car in the town. As a rule, these are short trips with movements in traffic jams during which the engine works for a long time on idling. What happens to the usual battery? When the car starts, it is strongly discharged and further does not have time to charge - the generator when the engine running at idult may not provide sufficient power for charge, especially when the powerful powerful power consumers (light, sound, air conditioning, winch, heated mirrors, etc. ). It turns out that the generator is capable of charging the battery only in those intervals when the car moves at a normal speed - 40-60 km / h. But such periods are quite short, and the ability of the usual battery take the charge is not very high, especially at low temperatures. As a result, we receive deep discharges, chronic underwent, which leads to a reduction in battery life.
For such operating conditions, it is advisable to have a battery that is not afraid of deep discharges and is able to quickly charge. Until recently, such parameters could only provide AGM batteries, but in ordinary cars They were practically not used due to very high prices.
The emergence of EFB technology in Russia made it possible to resolve this contradiction. Unlike a conventional battery, the plates in the EFB-battery are covered with a special film that prevents their sprinkling at a deep discharge. In addition, the battery plates themselves have become more resistant to corrosion due to the use of improved chemical composition. In addition, EFB batteries are able to make a charge more efficiently, time to "restore sports form" even during short trips in traffic jams. The service life of such batteries is twice as much as the usual. In this case, the battery with EFB technology is noticeably cheaper than AGM batteries.
To date, batteries made using EFB technology are completed with the START-STOP system. But they are recommended to those motorists who often drive in urban mode - for the battery this mode with constantly alternating charge cycles and discharge more and more reminds driving with constant starts and engine stops. Batteries with improved EFB technology are also suitable for cars equipped with additional options and powerful electricity consumers, such as preheating heaters, winches, inverters for charging gadgets, additional lighting devices, xenon and powerful sound systems. They are convenient when using a car in a taxi mode.
So, the accumulator battery "AKOM + EFB" is a modern and reliable product.
These batteries have a number of advantages over conventional starter batteries:
- double resource and resistance to cyclic loads; Over 240 charge-discharge cycles, that is, two times more than the usual starter battery;
- increased starting currents in comparison with conventional calcium batteries;
- not afraid of deep discharges;
- increased corrosive resistance of electrodes at high temperatures;
- the minimum battery charge time due to improved charging current reception.
And an important fact - big warranty period. At accumulatory batteries AKOM + EFB, it is increased to four years.
Accumulators "AKO + EFB" - this is another proof that the battery produced in Russia is not inferior to imported analogues and is able to provide its owner new level Comfort and quality. The use of improved technology provides accumulators AKO + EFB combination of high starting power and increased resource.
Briefly about the company "AKOM"
AKOM Group of Companies is a recognized market leader in the production of batteries in Russia. Includes rechargeable and metallurgical production, as well as an innovative scientific and technical center.
The product range of products is formed in accordance with the requirements and preferences of consumers, as well as taking into account the trends of the automotive market in Russia, CIS countries and Europe.
Currently, AKOM GC produces AKB brand: AKOM + EFB, AKOM, Ultimatum, Reactor, Bravo. AKO products are approved by world automakers, such as AvtoVAZ, GM-AvtoVAZ, "United Car Group", "Renault Nissan Russia"," Ford Sollers Holding ", Mercedes-Bents Truck East.
In addition, AKOM actively develops new market segments related to the reserve power supply of industrial enterprises, transport facilities, health facilities, as well as with electricity storage systems.
The AKO dealer network includes more than 60 largest partners throughout Russia, in the CIS countries, Southeast and Western Europe.
Detailed information - on the site www.akom.ru
* Calculated using Rosstat data on the first half of 2017 in terms of production in the Russian Federation.
Types of lead acid batteries
Currently the following types are most common on the battery market:
- SLA (Sealed LEAD ACID) Hermetic lead-acid or VRLA (Valve Regulated LEAD ACID) valve-adjustable lead acid. Made according to standard technology. Due to the design and applied materials, the electrolyte levels and the water tank check are required. Have low-resistance to cycling, limited opportunities Work with low discharge, standard starting current and fast discharge.
- EFB (Enhanced Flooded Battery) Technology developed by Bosch. This is an intermediate technology between standard and AGM technologies. From standard, such batteries are characterized by higher cycling resistance, improved charge. Have a higher starting current. As with SLA \\ VRLA, there are restrictions on low charges.
- AGM (Absorbed Glass Mat) Currently the best technology (according to the price \\ characteristic ratio). Cycling resistance is 3-4 times higher, fast charge. Due to the low internal resistance, there has a high starter current at a low degree of charge. Water consumption is close to zero, resistant to bundle electrolyte due to absorption in AGM separator.
- GEL (Gel ElectroLite) Technology at which the electrolyte is in the form of a gel. Compared to AGM, they have better resistance to cycling, high resistance to the bundle of electrolyte. The disadvantages include high cost, and high demands on the charge regime.
There are several more technologies for the manufacture of batteries, both associated with a change in the shape of plates and specific operating conditions. Despite the difference in technology, physico-chemical processes occurring during charge - the battery discharge is the same. There are charge algorithms different types Batteries are almost identical. The differences are mainly associated with the value of the maximum charge current and charge voltage.
For example, when charging a 12 volt battery using technology:
Determining the degree of battery charge
There are two main ways to determine the degree of charge of the battery, the electrolyte density measurement and the voltage measurement of the open circuit (PCC).
The PCC is a battery voltage without a connected load. For hermetic (not served) batteries, the degree of charge can be determined only by measuring the PCC. It is necessary to measure the PCC not earlier than 8 hours after stopping the engine (disconnecting from the charger), with a voltmeter of the accuracy class not lower than 1.0. At battery temperature 20-25 ° C (on the recommendation of the company Bosch). VRC values \u200b\u200bare shown in the table.
(Some manufacturers may differ from those given) if the battery charge is less than 80%, then it is recommended to conduct a charge.
Accumulator charge algorithms
There are several of the most common battery charge algorithms. Currently, most battery manufacturers recommend CC / CV charge algorithm (Constant Current \\ Constant Voltage - d.C. \\ constant pressure).
Such an algorithm provides a fairly fast and "careful" battery charge mode. To eliminate the long-term stay of the battery at the end of the charge process, most charger Switch to maintenance mode (self-discharge compensation) voltage on the battery. Such an algorithm is called a three-step. The chart of such a charge algorithm is presented in the figure.
These voltage values \u200b\u200b(14.5V and 13.2V) are valid when charging the batteries of type SLA \\ VRLA, AGM. When charging the GEL batteries, the voltage values \u200b\u200bmust be installed respectively 14.1V and 13.2V.
Additional algorithms when charging batteries
Prepare In a strongly discharged battery (less than 10V), the internal resistance increases, which leads to a deterioration in its ability to receive a charge. The prerequisite algorithm is intended for "roll" of such batteries.
Asymmetrical charge To reduce sulfate, the battery plates can be carried out asymmetric current. With this algorithm, the charge alternates with the discharge, which leads to partial dissolution of sulfates and restoring the battery capacity.
Alignment charge In the process of operation of the batteries, the internal resistance of individual "cans" occurs, which in the process of charge leads non-uniformity of charge. To reduce the scatter of internal resistance, it is recommended to carry out an aligning charge. In this case, the battery is charged with a current of 0.05 ... 0.1c at a voltage of 15.6 ... 16.4V. The charge is carried out within 2 ... 6 hours with constant control of the battery temperature. It is impossible to conduct an aligning charge of hermetic batteries, especially using GEL technology. Some manufacturers admit such a charge for VRLA \\ AGM batteries.
Battery capacity definition
During the operation of the battery, its container decreases. If the container is 80% of the nominal, then such a battery is recommended to replace. To determine the container, the battery is fully charged. They give to settle within 1 .... 5 hours and then discharged with a current 1 \\ 20c to 10.8V voltage (for a 12 volt battery). The amount of ampere-hours given by the battery is its actual capacity. Some manufacturers are used to determine the capacitance other values \u200b\u200bof the discharge current, and the voltage to which the battery is discharged.
Training cycle
To reduce the sulfation of the battery plates, one of the techniques is conducting control cycles (CTC). CTC consists of several consecutive charge cycles with subsequent discharge current 0.01 ... 0.05c. When conducting such cycles, sulfate dissolves, the battery capacity may be partially restored.
Enhanced Flooded Battery (EFB) or, speaking in Russian, improved rechargeable battery with liquid electrolyte. The battery produced by such technology differs from the familiar "classic" battery with plates, each of which is enclosed in a special package - separator. The surface of the plates is better protected from sulfate, the battery is not afraid of "squeezing" of plates.
As a result, the battery with improved EFB technology is a resistant to deep discharge and cyclic loads, it easily tolerates numerous charge-discharge cycles, has increased cold start currents, it restores the charge faster, it works in a wide range of temperatures, which is especially relevant for Russia. And still tolerate peak loads and almost does not evaporate the electrolyte.
Now, armed with a minimum of knowledge about the new technology, we will try to go through the meeting of the most outstanding misconceptions about the accumulators with improved EFB technology.
Myth First - EFB batteries are produced abroad, so the price of them is very high. Yes, of course, they produce them abroad, and until recently, such batteries were not available to everyone. But now, the leader in the production of batteries in Russia, factory Releases and battery series "AKOM + EFB". With the use of the very innovative technology, which is visible even from the name. And the price of them is significantly lower than foreign analogues, while, due to the multi-stage control of production, the quality is not inferior to world counterparts.
Myth two - Batteries with improved EFB technology are afraid of Russian frosts. All batteries do not like strong frosts, but Accumulators "AKOM + EFB" are afraid of them significantly less. They better tolerate peak loads when starting a cold engine and are rapidly restored. Of course, if you wish, and such a battery can be planted "in zero". But let's remember the resistance to a deep discharge. Charged and you can turn the starter again! Can better Engine In order to bring?
Myth Third - accumulators with improved EFB technology can only be installed on dear cars With Start-Stop. Can not, but should! The stability of the battery to cyclic loads is extremely important here. For such cars, they are a "mandatory program". And the Russian Battery "AKOM + EFB" works great on an imported business sedan. Also, however, as in any other car. Is owners budgetary cars Do not stand in many hours of traffic jams when the batteries are barely enough for headlights-heating-music heated seats and other benefits?!
Do not start the motor in a strong frost, are not interested in the durability of your battery?! Thus, AKOM + EFB batteries are designed not only for cars with START-STOP or for cars equipped with additional sources power consumption - light, powerful sound systems, winches, preheaters, spotlights, inverters, etc., but also for ordinary cars.
Myth Fourth - just about durability. Say, EFB - Batteries live for a short time. How long "that the same russian manufacturer Declares the doubled resource of such batteries and gives a four-year warranty on his AKO + EFB line.
Let's go back a little back and recall the improved protection against sulfate, resistance to peel plates, resistance to deep discharges. Batteries with improved EFB technology can be operated significantly longer than the classic starter battery.
Myth Fifth - EFB is non-serious. Here are batteries with AGM technology or gel batteries - this is a thing! And the truth is a thing! Without any irony. But, as any "thing" - has a considerable price. EFB batteries for most parameters are not inferior to "dry" batteries, and somewhere exceeding them. For example, the charge is rapidly taken. And at the same time it is noticeable cheaper! And, run ahead, the same AKOM prepares to withdraw to the battery market with AGM technology in 2018, which means that this technology will soon become more accessible to Russians.
Given the possibilities and dignity of the battery with EFB technology, this is a reasonable purchase that will serve not one year. In the AKOM + EFB line, seven models with a capacity of 55 to 100 Ah with straight and reverse polarity - you can choose a battery for almost any car. Batteries using improved EFB technology are perfectly suitable car enthusiasts, accustomed to getting better and not compromise, losing in quality.
