Where to restore the battery of the car. How to restore the car battery do it yourself? Features of recharging with small currents

Greetings to you friends. Today I will tell you about the most effective method for restoring the container in lead acid batteries.
In the period even the most properly operation, battery every day loses its container. And at one fine moment of his charge lacks to start the car engine. Exacerbate this example With the arrival of cold weather.

Naturally, the car enthusiast puts the battery for charging and after some time sees that the battery does not charge, and the voltage during charging stands as normal - 14.4-14.7 V or higher (12.6 without a charger).

What batteries can be restored?

Battery recovery process

Stage First: Preparation

Stage Second: Classic Recovery Method

Stage Three: Rechacter Revolutionary Battery

Recovery Battery Recovery Result

Battery recovery video

The cause of the car's battery malfunction is most often sulfate and the destruction of the plates as a result of a deep discharge, a long-lasting rearness or crystallization of the electrolyte at minus temperatures. In the warranty card and the car operating manual, most likely, at such a case you will find only the recommendations for replacing the Akb new. Nevertheless, you can try to reanimate the power supply by proven methods.

We raise the container and density

The main method that in various modifications is used to restore the battery is a multiple charge of a small current (usually such a recommendation can be found in technical literature). Due to the sulfation of lead plates (their surface is covered by a tap, which prevents normal battery operation), the battery capacity is significantly reduced. Charging is carried out quickly, but the discharge also occurs as quickly. In a short time, the AKB stops taking the current from the charger, and the pause is made, after which the cycle is repeated.

The power of the charging current should be low ¬- 4-6% of the nominal container. For example, if you have a capacity of 60 Ah, then the allowed current will be not more than 3.6 A. as a rule, the time of one charging cycle is 6-8 hours, a break - from 8 to 16 hours. The total number of cycles charge-break - 5-6. The cessation of restoration work is relevant if the electrolyte density has become normal for this AKB, and the magnitude of the voltage of each of the sections varies in the range of 2.5-2.7 volts.

Video tutorial on how to return to life an old battery

How to restore the car battery at home

A method that is suitable to more motorists who have no opportunity to wait for the result for a long time, consists in dissolving sulfates by washing with a special composition:

1. Charge the battery on all available capacity.
2. Drain the electrolyte.
3. Rinse the internal surfaces of cans with distilled water 2-3 times.
4. Fill an ammonia solution of trilon b (2% trillion b + 5% ammonia).
5. Leave the battery in this state for an hour (the end of the reaction will indicate the termination of active gas release).
6. Repeat desulfate in case of insufficient cleaning of plates from the plaque.
7. Rinse the battery with distilled water 2-3 times.
8. Fill the electrolyte of the required density.
9. Draw an AKB in the standard way.

The washing option easily lies in the following:

1. Drain the electrolyte.
2. Rinse the inner surfaces of the hot water battery several times.
3. Twin-three times rinse the plates with a shutter speed of 20 minutes with a cleaning solution with a cleaning solution and 3 teaspoons of technical (can be edible) soda.
4. Rinse the inside a couple of times with hot water.
5. Fill the fresh electrolyte and charge the battery during the day.
6. After the discharge of the AKB in the process of driving a car daily charge it within 6 hours over the next 10 days. Approximate charge time - 6 hours at voltage

14-16 volts and charging current no more than 10 amps.

Is it possible to reanimate a non-maintained acid battery

A reliable way to resuscitate the maintenance free car battery is very simple, but requires patience. First you need to pour the entire electrolyte, replacing it with the usual distilled water. Terminals are connected in the usual order to the charger on which it is exhibited constant pressure 14 volts. After a couple of hours you need to listen to the processes occurring inside. There should be gas emission. If it is intense, then it is necessary to slightly reduce the voltage of the charging current. Thus, it is necessary to achieve a moderate, but stable gas formation.

In this state in two weeks, the battery will make a weak electrolyte from the water as a result of its reaction with lead sulfate on the surface of the plates, which will be gradually converted into sulfuric acid molecules. After the specified time, the contents of the cans are replaced by water again, from which a new electrolyte should be obtained within 1-2 weeks under the action of already tested current. At the end of the desulfation, the electrolyte of weak density is subject to replacement with a normal electrolyte. The final stroke of the recovery will be recovery in accordance with the standard parameters for this battery.

Correctly eliminate short circuit

It happens that the problem of the discharge of the battery became a consequence of a short circuit in one of the cans. In this case, the electrolyte charge in the problem section becomes impossible. The only output is to eliminate the closure zone by burning it out of the current. It is enough to connect terminals, for example, to a welding machine with a rectifier diode at the output to give a current of current to 100 and more amperes. Close the chain will be enough for a couple of seconds. This is enough to eliminate the place of contact of the plates as a result of its critical overheating.

Reverse charging

The welding machine can also help when restoring the battery by reverse charging. Polarity should be perceived in this case with exactly the opposite: "plus" the power source is connected to the "minus" of the battery, "minus" - to the positive terminal. The voltage should be 20 volts, charging current is 80 amps or more. With the plugs of all the cans of all cans serve. The battery should be actively boiled for half an hour, after which the electrolyte should be merged. After washing acb hot water, you can pour a normal electrolyte and charge the day battery. But there is an important nuance: the terminals have now changed the polarity, so the "plus" of the charger is installed on the "minus" of the battery, and the "minus" goes to the former "plus".

If the above methods do not help solve the problem or there is no possibility to wait, you will have to buy a new battery.

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The result of the repair always depends on the determination of the master to achieve a conceived effect and its readiness to spend the right amount of forces, tools and time. The cost of repairing batteries must be specified after a thorough check and installation of the diagnosis of "disease". Repair of the car accumulator with its efforts is justified if the estimate of its repair will be not more than half the price of a similar new product, taking into account that most of the work will be done with their own hands.

Repair of cracks or chip chip, violation of the integrity of contacts will cost symbolic costs. For expensive branded models, shabby, but retained at least half of the planned resource, the repair of batteries are usually carried out in car workshops.

If there is patience and desire to understand the repair of the car battery do it yourself - watch the video:

But it is better to refer to the literature on the maintenance and repair of automotive equipment of the 60-70s of the last century. Let you not be confused by the age of the source - in the last 30-40 years acid batteries Become perfect, but the main breakdowns and methods of repair remained the same. Usually the topic - how to repair the car battery, decomposed on the shelves to the smallest details.

The acid-lead batteries are sick

Problems with the tightness of the case arise as a result of careless handling of the battery. Modern materials, impact-resistant acid-resistant plastics, for example, polypropylene, well transfer mechanical and thermal impact. The exceptions are cases when the battery case is destroyed due to the internal circuit of the plates of the electrodes when charging the current. Then a lot of heat is released, the excess pressure of gases and water vapor is formed.

For the repair of cracks in the battery case, you will need:

We carry out the repair in the following order:

• if the crack on the housing is below the electrolyte level, drain it from the battery using a large medical syringe with an arched piece of polychlorvinyl tube, 20-25 cm long;

Important! Despite the numerous advice of Internet specialists to drain the electrolyte by simply tipping the battery, it is categorically impossible to do it. When the battery is turned over, the sediment of lead oxide, going in special pockets at the bottom of the housing, is able to cause an interelectrode closure of the plates and finally remove the battery.

• a sharp knife formed along the entire length of the crack V-shaped groove. At the ends of a thin drill, unfold the tiny holes in 1mm. They are needed to prevent the further development of the crack;
• heat the soldering iron or in the flame of the ordinary candle of the bracket to a temperature of 400-450 degrees. Carefully fuse them in the edges of the crack every 12-15 mm. Such a bandage will keep the edges of the crack in contact;
• we make a thermal screen from heat-resistant material, canonite, 10x15 cm. In the sheet cut the slot, dimensions and shape exactly coinciding with the geometry of the crack. We combine cutout with a shape of the groove and securely fix on the battery case;
• for soldering, you can use a special soldering rod or tape, and you can make the solder with your own hands. Cut from the harvested polypropylene thin, like a thread, strips. Their length and quantity should correspond to about the volume of the material required to fill the V-shaped slot. We turn into a thin tight harness;
• heat the halter with a halter, we melt the edge of the solder material and press it with an effort to the beginning of the crack. Warming polypropylene solder and crack, we sequentially close the whole slit;
• in addition to soldering, the crack can be sealed with a polystyrene dissolved in dichloroetane, or solvent KR-30. For the sticker of the patch surface around the crack at a distance of 15-20 mm, it is necessary to handle the sandpaper and degrease the acetone.

Sulfate electrodes

Statistics studies of the Battery Council Int. He speaks - in 80%, the cause of the failure of the battery is plate sulfate.

One of the available types of auto batteries with your own hands is to eliminate the sulfate of the battery plates. The surface of the electrode is covered by a whitening flaw that prevents the normal flow of current. The capacity of the battery, even after the full discharge cycle, is less than charge.

How to repair the battery with your own hands, knows any experienced motorist. With a low degree of sulfate electrodes, the precipitate on the surface of the plates still has loose and porous consistency.

Experts are offered to repair a car battery with simple and efficient procedures:

• replace the electrolyte in the battery with warm distilled water. A few hours in the battery will occur a chemical response of salts from the surface of the electrodes. Distilled water, as the salts transition to the solution, will turn into an electrolyte, the terminals will have a potential of 7-10 volts;
• drain the resulting solution and rinse the battery several times, first distilled water, and then a clean electrolyte;
• calm the battery capacity with a reduced density electrolyte and put it on charge with a charge current limit no more than 116 nominal capacity by 10-12 hours;
• using a conventional car light bulb, discharge the battery for 7-8 hours. Cycle charge-discharge must be repeated at least 4-5 times.

In the absence of problems with the closure, warping of plates, repair, battery capacity can restore up to 80-85% initial.

Tip! Use asymmetric current to charge the battery, its effectiveness is confirmed by practice, and many manufacturers of specialized chargers implement a similar function in their products.

If sulfate plates reached 30-40% of the electrode surface, repair the battery with your own hands is still possible, but already using chemicals:

• the electrolyte is drained from the charged battery and replace it with 2% aqueous solution of the preparation "Trilon B" with an additive of 5% ammonia;
• after 60 minutes, the solution is drained and the banks are washed with distilled water;
• after washing, the electrolyte is poured and charged to 1/10 from the battery capacity. If necessary, the procedure is repeated two or three times;
• such technology makes it easy and effectively repairing batteries not only by automotive, any similar, most importantly - with their own hands and forces;

Internal closure of electrodes in one of the batteries

The liquidation of internal circuit in the bank is one of the last, available types of repair of the battery with their own hands. The battery has six groups of pairs of electrodes, called banks collected in the hermetic case sequentially. Each of the cans may consist of 6-10 pairs of atolar electrodes separated by special dielectric insulators - separators. If the separator is destroyed, or for any other reasons between a pair of positive and negative electrodes there will be direct contact, the ability of electrodes to accumulate energy will be lost.

How to repair the battery in a similar situation - repair is possible only if the closure is caused by lead microparticles accumulated at the bottom of the battery and formed a kind of jumper between the electrodes. To do this, in the bottom of the closed banks, a small hole is drilled and a flowing electrolyte is washed away by the estimated cause of the closure - bottom sediment of lead slam. If 3-4 one-time flushing did not give the desired results, the battery is selected.

Before making a decision on the possibility and impossibility of repair lithium batteries, consider the health of the control units, controllers, wiring and contact group.

The reasons for the failure of a lithium battery are several:

• failure of the control system board (BMS), the battery repair is reduced to the usual replacement of the controller;
• fitting wiring, switches and load switching devices. With the help of the car tester, they check serviceability, and if necessary, replace the element;
• if the first two factors are excluded, directly lithium elements are subject to repair, of which the battery is gained.

Comment! In case of failure of part of lithium battery elements, the cost of repair, their revision and replacement will be comparable to the new battery price.

All batteries have a shelf life, with numerous charge-discharge cycles and a multitude of worked clocks, the battery loses its container and keeps the charge less and less.
Over time, the battery capacity is so falling that further operation becomes impossible.
Probably, many have already accumulated batteries from uninterruptibles (UPS), signaling and emergency lighting systems.

In the set of household and office equipment there are lead-acid batteries, and in independence from the brand of battery and production technology, whether it is the usual serviced car battery, AGM, gel (GEL) or a small battery from a flashlight, all of them have lead plates and acid electrolyte.
Upon completion of operation, such batteries cannot be thrown out because they contain lead, mostly they are waiting for the fate of disposal where lead is retrieved and processed.
But nevertheless, despite the fact that such batteries are mostly "non-servant", you can try to restore them returning them to the old capacity and use for some more time.

In this article, I will tell you about how Restore a 12 volt battery from UPSA by 7AHbut the method is suitable for any acid battery. But I want to warn that these measures should not be performed on a fully working battery, since in a serviceable battery, it is possible to achieve a capacity of capacity in just the right way to charge.

So we take the battery, in this case the old and discharged, we subsequent a screwdriver with a plastic cover. Most likely, it is point shoved to the body.

Further connect the battery to charging again, the voltage should be so that the charging current for our 7Ah battery was 600mA. Also, permanently observing, support the specified current for 4 hours. But we look at the same charge, for a 12-volt battery, there was no more than 15-16 volts.
After charging, after about an hour, the battery needs to be discharged to 11 volts, it is possible to do this with the help of any 12-volt bulb (for example on 15wat).

Most likely to return the nominal capacity of the battery does not work, since the sulfate of the plates has already lowered its resource, and also there are other detrimental processes. But the battery can be further used in normal mode and the container will be enough for this.

Regarding the rapid wear of the batteries in uninterrupted, the following reasons were noticed. Being in one case with a uninterruptible, the battery is constantly passive heating from the active elements (power transistors) which, by the way, heated to 60-70 degrees! Standing battery imprivation leads to a rapid evaporation of electrolyte.
In the cheap, and sometimes even some expensive UPS models, there is no charge thermocomption, that is, the charge voltage is displayed by 13.8 volts, but it is permissible for 10-15 marads, and for 25 degrees, and sometimes more and much more, the charge voltage should be Be a maximum of 13.2-13.5 volts!
A good solution will bear the battery outside the housing if you want to extend its service life.

Also affects the "permanent small charge" uninterrupted, 13.5 volts and a current of 300mA. Such a recharge comes to the fact that when the active spongy mass ends inside the battery, then the reaction begins in its electrodes, which comes to the fact that the lead of the current recesses on (+) becomes brown (PBO2) and on (-) becomes the "spongy".
Thus, with a constant reload, we obtain the destruction of the current and the "boiling" of the electrolyte with the release of hydrogen and oxygen, which leads to an increase in the concentration of electrolyte, which again contributes to the destruction of the electrodes. It turns out such a closed process that makes it clear the battery life rapid flow rate.
In addition, such a charge (transferred) is a large voltage and a current of which the electrolyte "boils" - translates the lead of the cocoquets into the powder oxide which over time crept and may even close the plates.

With active use (frequent charge), it is recommended to fill distilled water into the battery once a year.

Take only a fully charged battery with control as the level of electrolyte and voltage. Anyone case does not overflow better not to add it Because it is impossible to select it back, because sucking the electrolyte you deprive the battery of sulfuric acid and in consequence the concentration changes. I think it is clear that sulfuric acid is non-volatile, therefore, in the process of "boiling" during charging, it remains inside the battery - only hydrogen and oxygen comes out.

On the terminals we connect a digital voltmeter and a syringe for 5ml with a needle pour into each jar of 2-3ml of distilled water into each jar, at the same time shining inside the flashlight to stop if the water stopped getting off - after filling 2-3ml, see the bank - you will see how water quickly absorbs, and voltage The voltmeter drops (on the share of the Volta). We repeat the plot for each bank with pauses to absorb 10-20 seconds (approximately) until you see that the "glassate" is already wet - that is, the water is no longer absorbed.

After the topping, we examine whether there is no overflow in each bank of the battery, wipe the entire case, we set the rubber caps in place and we glue the cover into place.
Since the battery after the topping is shown about 50-70% of charging, you need to charge it. But the charging must be carried out or a controlled power supply or a uninterruptible or a regular device, but under the supervision, that is, during charging, you must just follow the battery status (you need to see the top of the battery). In the case of a uninterrupted manner, for this you have to make extension cords and output the battery outside the UPSA housing.

Under the battery, the platform napkins or cellophane bags, charge up to 100% and look, does not proceed from any electrolyte bank. If suddenly it happened, stop charging and remove the napkin. With the help of a napkin moistened in the soda solution, we clean the housing, all the depressions and terminals where the electrolyte fell, in order to neutralize the acid.
We find the bank from where it happened "bumping" and see if the electrolyte is visible in the window, we suck the surplus with a syringe, and then carefully and smoothly refuel this electrolyte back inside the fibers. It often happens that the electrolyte after the topping is not evenly absorbed and boiled up.
When re-charging, we observe the battery as described above and if the "problem" battery bank again starts to "stream" when charging, excess electrolytes will have to be removed from the bank.
Also, under the inspection, at least 2-3 full-time-charge cycle should be done, if everything went fine and there are no inclusions, the battery does not heat (light heating when charging does not count), then the battery can be collected in the case.

Well, now consider especially cardinal methods of resuscitation lead-acid batteries

From the battery, the entire electrolyte is drained, and the insides are washed first a couple of times with hot water, and then with a hot solution of soda (3h.l soda per 100 ml of water) leaving a solution in a battery for 20 minutes. The process can be repeated several times, and flush well from the residues of soda solution - poured a new electrolyte.
Then the battery day is charged, and later, for 10 days, 6 hours in a day.
For automotive batteries current up to 10 amps and voltage of 14-16 volts.

The second way is the inverse charge, for this procedure you will need a powerful voltage source, for automotive batteries, for example, a welding machine, a recommended current - 80Anper with a voltage of 20 volts.
Make a rally, that is, plus a minus and minus to the plus and for the course of half an hour "boil" the battery with its native electrolyte, after which the electrolyte is drained and washed with hot water battery.
A new electrolyte is fill on and observing a new polarity, for a day, a current of 10-15 amps is charged.

But the most effective way is done with Him. substances.
From a fully charged battery, the electrolyte is drained and after repeated washing with water, the ammonium solution of the trillion b (ethylenediaminetetrauxuscase sodium) is poured, containing 2 weight percentage of trilon b and 5 percent of ammonia. The process of desulfation is occurring for 40 - 60 minutes, for which gas is released with small splashes. Upon termination of such gas formation, one can judge the completion of the process. With a particularly strong sulfate, the ammonium solution of the trilder B should be pouring again, removing before it spent.
The accumulator procedure is thoroughly washed several times with distilled water and poured a new electrolyte of the desired density. The battery is charged with a standard way to a nominal container.
Regarding the ammonia solution of the trillion B, it can be found in chemical laboratories and stored in hermetic containers in a dark place.

In general, if it is interesting, then the composition of the electrolyte, which produces Lighting, Electrol, Blitz, Akkumulad, Phonix, Toniolyt and some others, is an aqueous solution of sulfuric acid (350-450g per liter) with the addition of sulfate salts of magnesium, aluminum, sodium, ammonium. As part of the electrolyte, Gruconnin also contains potassium alum and copper cune.

After recovery, the battery can be charged normally for this type In a way (for example, in UPSE) and prevent discharge below 11 volt.
In many uninterrupters, there is a function "Calibration of Akb" with which you can carry out the discharge-charge cycles. By connecting the load at the output of the uninterrupted load of 50% of the Maximum of the UPS, we launch this function and the uninterruptible unit discharges an acb to 25% and then charges up to 100%

Well, on a very primitive example, charging such a battery looks like this:
A stabilized 14.5 volt voltage is supplied to the battery, through a wire variable high power resistor or through a current stabilizer.
The charge current is thrown by a simple formula: the battery capacity is separated by 10, for example, 700mA will be 700mA for the battery. And on the current stabilizer or using an alternating wire resistor, it is necessary to set a current of 700mA. Well, in the process of charging, the current will start falling and it will be necessary to reduce resistor resistance, with time the resistor handle will come to the initial position and resistance of the resistor will be zero. The current will continue to gradually decrease to zero until the voltage on the battery does not become permanent - 14.5 volts. The battery is charged.
Additional information on "correct" charging batteries can be found

light crystals on the plates are sulfate

A separate "bank" battery battery was subjected to constant shortage and as a result of sulphates, its internal resistance grew with each deep cycle, to led to the fact that, during the charge, it began to "throw" before all, due to loss of capacity and removal of electrolyte in Insoluble sulfates.
The positive plates and their lattices turned into a consistency in powder, as a result of a constant recharge by uninterrupted in the "Stand-Bai" mode.

Lead acid accumulators except cars, motorcycles and diverse household appliances, where they are not found in lanterns and in hours and even in the smallest electronics. And if you got into the hands of such "non-working" child-acid battery Without identifying characters and you do not know how voltage it should issue in the working condition. It can easily be found in the number of cans in the battery. Lay the protective cover on the battery case and remove it. You will see the caps for booming gas. By their number it will become clear how many "cans" this battery.
1 bank - 2 volt (fully charged - 2.17 volts), that is, if the cap 2 means the battery for 4 volts.
A fully discharged battery bank must be no lower than 1.8 volts, it is impossible to discharge below!

Well, the thief will give a small idea, for those who lack funds to buy new batteries. Find in your city firms that do computer equipment And supplements (uninterrupted boilers, batteries for signaling systems), agree with them so that they did not throw away the old batteries from uninterrupted trips, but they were given it possible at a symbolic price.
Practice shows that half of AGM (gel) batteries can be restored if not up to 100% then up to 80-90% exactly! And this is a couple of years of excellent battery operation in your device.

With all the variety of models and types of cars, all of them are assembled from knots, blocks and mechanisms performing a clearly defined role. Its tasks in this engineering construction are both in front of the battery, whose price tag cannot be called cheap. If the battery is output, do not rush to dispose of this device: after proper recovery, the car battery will work even better than the new one.

The role of batteries in the system

Battery B. car construction Solves two tasks at once:

Running power aggregatewhich consists of, clutch and gearbox;

Provides power on the entire on-board network when the engine is turned off.

Without the battery, the car will not start and stand on a joke.

Causes due to which the battery may fail:

Improper device maintenance;

How the battery is arranged

Accumulators from the moment of their invention were constantly improved in order to increase the life of the device and its performance. In engineering innovations, emerging new materials with improved characteristics were used.

Car rechargeable batteries consist of a closed plastic container, inside of which forming tanks with plates of different polarity are located. The tanks are made from ebonite, glass or wooden billets with lead coating, and special alloys are used to produce plates. The main space of the container is filled with sulfuric acid.

Principle of operation of AKB

Sulfuric acid is necessary for the formation of a galvanic pair. When the current enters the terminals, the process of electricity accumulation in the battery is started inside the battery rechargeable batterywhich at a certain stage itself becomes the source of current with ultra-low voltage at 12 volts - conditionally safe for human health and life.

When the driver, going to the flight, includes the starter, the digit battery is discharge. During the operation of the battery motor, it must be filled with electricity spent, but it does not always happen. The reasons for which the battery does not have enough capacity to rotate the starter, determines the specialist.

What are the battery malfunctions

The most common are the following reasons for the failure of the battery:

Sulfate plates.

Signs: Fast falling battery capacity, power shortage for starter rotation, increased voltage at outputs, overheating of plates and electrolyte.

The disturbed integrity of the plates, and for coal - their sweeping.

Signs: darkened sulfuric acid. In this case, the recovery battery is not subject to.

Circuit near the plates of the section.

Signs: The hot walls of the section, which rolls out the electrolyte. In this case, it is possible to restore the battery by replacing the failed plates.

Non-compliance with storage rules (especially in winter) and operation of the battery.

Signs: damage to the body of the container and lead plates. In this case, there can be no speech about the recovery of the battery.

Resuscitation of batteries

A faulty current source return to life step by step.

First action

After removing the terminals from the battery, it is carefully examined. Turn-plated lead electrodes are purified by a rag, and its conclusions are emery fine-grained paper. The powder layer on the electrodes can be of different thickness and different colors (green, white, blue). By the way, contacts covered with such a powder in many cases are the main cause of the weak work of the starter.

Second action

It is more complicated because it turns on the chain: charging is the battery discharge. The battery is first charged, and then completely discharge.

To date, modern devices are available on sale with such a unique feature. In impulse stationary devices, these two opposite actions are laid as they say, "in one package" to fight the unpleasant process of plate sulfate at the initial stage.

Old charging devices will be required from the performer of large patience, because at the current of the current ten times the smaller battery capacity, the recharging goes on average ten o'clock. This is clearly convincing such an example: for charging the battery with a capacity of 75 A / h, a current of 7.5 amps is determined.

When the charger of the old sample will complete its work, proceed to the battery discharge process. To do this, use a conventional automotive light: connect it to the battery and wait for it to stop burning. After the light bulb is completely walked, it is cleaned, and the battery is connected to the charger.

So, through strictly consecutive cycles, there is resuscitation of current sources for cars.

Action third

If a short circuit happened in the battery, use a special desulphous additive. To restore the battery, it will take several days, because the additive is completely dissolved in the electrolyte for two days. This ingredient is added to the electrolyte with a density of 1.28 g / cube. cm.

After two days, the resulting liquid agent is poured into the battery and once again check the density. If the new figure remains the same or turned out to be very close to this figure (1.28), there are several successive charging cycles / battery discharge.

During charging, it is necessary to observe the electrolyte. If it does not boil, and the walls of the container have the ambient temperature and are not heated, then you can reduce the incoming current value.

After two hours, the density of the electrolyte is again measured, and if the nominal value is obtained again, the charging process is completed - the battery is completely restored and ready to work.

In case of changes in the electrolyte density in a large direction, it is diluted with distilled water. If the density indicator is below 1.28 g / cube. cm, plot sulfuric acid. In both cases, after adjusting the density, the battery is set to charging.

Accelerated charging

The battery charge principle of accelerated pace the following:

1. The battery is charged and after that the electrolyte is drained from it.

2. The container is washed with distilled water and poured at an hour with a solution (Trilon b - 2% and ammonia - 5%). In some cases, the flushing is repeated.

3. Repeated with water is performed, after which the container is filled with fresh electrolyte.

4. The battery is placed on a complete charge.

In order for the batteries to serve for a long time and reliably, it is not necessary to take more effort: just follow the cleanliness of the battery and once every six months do it a full charge of a fixed device.