Here it is worth mentioning only one working method - flushing the battery with Trilon B solution. The solution contains Trilon B - 2% (wt.) And ammonia - 5% (wt.). The electrolyte is drained from the battery, washed with distilled water and the Trilon B solution is poured in. Leave to stand for about an hour. Then it is flushed with distilled water, electrolyte is poured and the battery is charged. This method can be called a working method, as many who have tried it have had a positive result. The question may arise as to how to flush the car battery. To do this, you need to get a pear with a nozzle. With its help, the old solution is pumped out and then a new one is poured.
So that you do not have to repair your car battery and it has served for a long time, you need to follow these recommendations:
The battery is an integral part of the vehicle. Without it, the car will not be able to move. However, the battery, like other equipment, can fail. This article will guide you through common battery problems and how to fix them.
1. What batteries are there?
3. Options for battery repair.
Today there are two common types of batteries: lead-acid and lead-gel.
The first type of battery is the most common, however, manufacturers claim that such a battery cannot be repaired. In fact, such a statement is incorrect. In most cases, a lead acid battery is easy to repair. The service life of such a battery without repair is a couple of years.
The second type has no acid as an electrolyte. It uses a mixture with a thickener - silica gel. The advantages of a lead-gel battery are: complete absence of acid vapor emissions into the atmosphere and a long service life. But repairing such a device is extremely difficult, since there is little experience with it.
The key problem with a lead acid battery is sulfation. It arises as a result of the appearance of large sulfuric lead crystals. Crystals will appear only if the battery is discharged. In this case, the battery can still be saved.
Otherwise, the battery may dry out. The reason for this phenomenon may be a charge exchange with further dissociation.If distilled water is added to the water in time, then there is a chance to save the precious battery. But, if the battery is swollen, you should not do this. Usually such batteries are simply thrown away.
With continuous use of a battery with a low electrolyte density, there is a risk of irreversible damage to the battery.
1. Charge the battery with current several times. The amount of current should be small.
2. Charge with high voltage several times.
3. Flush the battery with Trilon B. Replace the old electrolyte.
4. At the end, you need to charge. Voltage with amperage must be stable.
It takes patience to save the battery, however, the process itself is quite simple. It is necessary to carry out 5 charge cycles. The current should be minimal. The duration of each cycle will be 8 hours.
The essence of such repairs is topping up water and charging. At the same time, the water must be distilled, and the charging must have an adjustment function. Initially, there is a voltage of 14 V for 15 minutes. Then there is a pause (also 15 minutes). Then comes the same charge, lasting a day. This is described for 3 cycles. The rest of the cycles run at 14.5 and 14.8 V.
Another option for repairing a battery can be charging at 1.5 Amperes. This charging takes half a day. Then a short charge is carried out and the stage is repeated. After a day, you need to check the voltage. If the voltage is less than 13 V, then the same charging cycle is repeated.
If you have Trilon B and ammonia at hand, then you can fix the battery in the following way. It is necessary to drain the acid, rinse the plates, pour in the solution. The solution is poured: Trilon 2% by weight and 5% ammonia. When gas evolution stops, the job is practically done. Then comes flushing, acid filling and charging. The duration of such a repair will take several hours.
The result of the repair always depends on the master's determination to achieve the intended effect and his willingness to spend the required amount of effort, money and time. The cost of repairing batteries must be clarified after a thorough check and diagnosis of the "disease". Repairing a car battery by one's own efforts is justified if the estimate of its repair is no more than half the price of a similar new product, taking into account that most of the work will be done by hand.
Repair of a crack or a chip in the case, violation of the integrity of the contacts will cost symbolic costs. For expensive branded models, shabby, but retaining at least half of the planned resource, battery repairs are usually carried out in car workshops.
If you have the patience and desire to understand the issues of car battery repair with your own hands - watch the video:
VIDEO
But it is better to turn to the literature on the maintenance and repair of automotive equipment of the 60-70s of the last century. Do not be confused by the age of the source - over the past 30-40 years, acid batteries have become more perfect, but the main breakdowns and repair methods have remained the same. Usually the topic - how to repair a car battery, is laid out on the shelves to the smallest detail.
Problems with the tightness of the case arise as a result of careless handling of the battery. Modern materials, shock-resistant acid-resistant plastics, for example, polypropylene, tolerate mechanical and thermal stress well. An exception are cases when the battery case is destroyed due to the internal closure of the electrode plates when charging with a high current. Then a lot of heat is released, an excess pressure of gases and water vapor is formed.
To repair a crack in the battery case, you will need:
a special building hair dryer with a function of stepless temperature control and a narrow slotted nozzle;
electric 100W flat tip soldering iron;
several brackets with a length of 20-25mm and a sidewall height of 2mm;
a number of strips of thin sheet polypropylene from an old battery case or special solder material in the form of rods or tape.
We carry out repairs in the following order:
if the crack on the case is below the electrolyte level, drain it from the battery using a large medical syringe with a piece of PVC tube, 20-25 cm long;
with a sharp knife, we form a V-shaped groove along the entire length of the crack. At the ends, use a thin drill to open tiny 1mm holes. They are needed to prevent further crack development;
we heat the staples with a soldering iron or in the flame of an ordinary candle to a temperature of 400-450 degrees. Carefully fuse them into the edges of the crack every 12-15 mm. Such a bandage will keep the edges of the crack in contact;
we make a heat shield from a heat-resistant material, you can use paronite, 10x15cm in size. We cut a gap in the sheet, the size and shape exactly coinciding with the geometry of the crack. We combine the cutout with the shape of the groove and securely fix it on the battery case;
for soldering, you can use a special soldering rod or tape, or you can make the solder yourself. Cut off strips thin, like a thread, from the prepared polypropylene. Their length and number should correspond approximately to the volume of material required to fill the V-shaped gap. We turn it into a thin tight tourniquet;
heat the edge of the slot with a hairdryer, melt the edge of the soldering material and press it with force against the beginning of the crack. Warming up the polypropylene solder and the crack, we sequentially seal the entire gap;
in addition to soldering, the crack can be sealed with polystyrene dissolved in dichloroethane or KR-30 solvent. To apply the patch, the surface around the crack at a distance of 15-20 mm must be sanded and degreased with acetone.
Research statistics of the Battery Council Int. says - in 80% of the reason for the failure of the battery is the sulfation of the plates.
One of the available types of car battery repair with your own hands is the elimination of sulfation of the battery plates. The surface of the electrode is covered with a whitish coating, which prevents the normal flow of current. The capacity of the battery, even after a full discharge-charge cycle, is an order of magnitude less than the normal charge.
Any experienced car enthusiast knows how to repair a battery with his own hands. With a low degree of sulfation of the electrodes, the sediment on the surface of the plates still has a loose and porous consistency.
Experts suggest repairing a car battery with simple and effective procedures:
replace the electrolyte in the battery with warm distilled water. For several hours, a chemical reaction of dissolving salts from the surface of the electrodes will take place in the battery. Distilled water, as the salts go into solution, will turn into an electrolyte, a potential of 7-10 volts will appear at the terminals;
drain the resulting solution and rinse the battery several times, first with distilled water and then with clean electrolyte;
fill the battery capacity with fresh electrolyte of low density and put it on charge with a charge current limitation of no more than 116 of the nominal capacity for 10-12 hours;
Discharge the battery for 7-8 hours using a regular car bulb. The charge-discharge cycle must be repeated at least 4-5 times.
If there are no problems with short circuit, warping of plates, repair, the battery capacity can be restored to 80-85% of the initial one.
If the sulfation of the plates has reached 30-40% of the electrode surface, it is still possible to repair the battery with your own hands, but with the use of chemicals:
the electrolyte is drained from the charged battery and replaced with a 2% aqueous solution of Trilon B with the addition of 5% ammonia;
after 60 minutes, the solution is drained and the jars are washed with distilled water;
after washing, the electrolyte is poured and charged with a current of 1/10 of the battery capacity. If necessary, the procedure is repeated two to three times;
this technology allows you to simply and effectively repair batteries not only for automobiles, any similar, most importantly - with your own hands and forces;
Eliminating an internal short circuit in a bank is one of the last available types of battery repair with your own hands. The rechargeable battery has six groups of pairs of electrodes, called cans, assembled in a sealed case in series. Each of the cans can consist of 6-10 pairs of oppositely polarized electrodes, separated by special dielectric insulators - separators. If the separator breaks down, or for any other reason, direct contact occurs between a pair of positive and negative electrodes, the ability of the electrodes to store energy will be lost.
How to repair a battery in a similar situation - repair is possible only if the short circuit is caused by lead microparticles that have accumulated at the bottom of the battery and formed a kind of jumper between the electrodes. To do this, a small hole is drilled in the bottom of the closed jar and the alleged cause of the closure is washed out with a flowing electrolyte - the bottom sediment of lead sludge. If 3-4 times flushing did not give the desired results, the battery is discarded.
Before deciding on the possibility and impossibility of repairing lithium batteries, they consider the serviceability of control units, controllers, wiring and a contact group.
There are several reasons for the failure of a lithium battery:
failure of the control system board (BMS), battery repair is reduced to the usual replacement of the controller;
failure of wiring, switches and load switching devices. Using an automotive tester, they check the serviceability, and, if necessary, replace the element;
if the first two factors are excluded, the lithium cells from which the battery is drawn are directly subject to repair.
How do I fix a battery?
Car battery repair: the most common malfunctions and their causes
Self-discharge
The appearance of oxidation on the lead pins
Short circuits
Damage to the case
Sulfation of plates
Broken internal network
DIY car battery repair: a list of necessary actions
How to quickly restore a dead battery
Do-it-yourself car battery repair: is it worth getting to work?
To understand how to repair a car battery, you first need to understand why it does not work, and what led to the breakdown. Below we will consider the most common battery malfunctions.
This property is typical for absolutely all car batteries. Even an unused battery can discharge by about 1% within a day. If we are talking about an old battery, then during an idle period for a day, its charge may decrease by 3%. This feature of the battery is connected with the property of the electrolyte to exfoliate during downtime, as a result of which a denser liquid settles at the bottom of the cans. In turn, this becomes the cause of the emergence of "parasitic" currents, which cause self-discharge.
So that self-discharge does not lead to a complete failure of the battery, even during storage, it should be recharged at least once every 2 months by using small currents. But if the battery discharges more than 3% during the day, it means that it also has others. malfunctions:
• presence of impurities in the electrolyte;
• use of low-quality components in the battery manufacturing process;
• ingress of foreign objects inside the battery;
• contamination of the outer surface of the battery;
If you continue to use a battery with similar disadvantages, then it can be completely discharged even in one day. Such a car battery is unlikely to be repaired.
A similar malfunction is caused either by electrolyte contact with the pins and copper terminals of the battery, or by electrolyte vapors. In any case, the contact between the pins and terminals deteriorates, which is why you have to resort to self-cleaning of oxidized elements with fine-grain sandpaper. After completing the car battery repair procedure, the pins and terminals must be covered with special technical Vaseline, which will prevent the occurrence of oxidations in the future.
Short circuits of opposite-pole plates of a car battery can occur either as a result of the destruction of separators, or due to the residual active mass settling at the bottom of the battery cans. Other reasons for a short circuit include:
• excessive shaking of the battery, which is poorly fixed in the engine compartment;
• use of electrolyte with high density;
• warpage of the plates resulting from the supply of too high a current;
If the case is damaged, the car battery can also be repaired with your own hands, but the possibility of such restoration always depends on the degree of damage. Often the situation can be corrected with an adhesive that is suitable for fixing the material of damaged areas. During operation, the electrolyte from the car battery case is necessarily poured out and the tank is dried. After repairing the damage to the case, a new electrolyte is poured into the battery.
This is a very common cause of car battery failure, which, however, must be corrected on its own. To understand how to repair a car battery with a "diagnosis" of plate sulfation, you need to understand what is the cause of such a malfunction:
• long-term storage of batteries without recharging;
• decrease in the amount of electrolyte in the battery banks;
• use of electrolyte with high density for the accumulator;
• driving a car with an over-discharged battery.
A characteristic sign of plate sulfation is the formation of lead sulfate crystals on their surface. This substance is not able to dissolve in the electrolyte and, when accumulated on the plates, does not allow liquid to penetrate into their active mass. The result of this is a rapid decrease in battery capacity.
Every driver should take good care of the vehicle's battery and avoid situations that can lead to sulfation.
A similar malfunction is more likely to be typical for older battery models. However, if you are "lucky" to encounter such a battery problem, fixing it is not only easy, but also cheap. As a result of the breakage, the plates are simply disconnected from the output terminals of the battery. In order for it to work again, this connection will need to be restored.
Car battery repair can take a lot of time, so you should prepare for such a procedure in advance. At the same time, it is most rational to restore the battery only in the case of sulfation of its plates. In almost all other cases, the battery will need to be replaced. In order to desulfate the plates, you must:
1. Drain the old electrolyte from the battery, as a result of which the plates are covered with lead sulfate.
2. In a new electrolyte, dilute a special desulfating additive liquid. In this case, it is recommended to use an electrolyte with a density of 1.28 g / cm3. The amount of electrolyte to be poured into the battery, check with the instructions for the device.
3. Pour the resulting electrolyte into a non-working battery.
4. Unscrew the plugs on the car battery for connecting to charging with a small current. It is very important that during this process the battery does not start to heat up and boil. If the voltage at the terminals rises to 13.8 V, the current will need to be reduced a little more and measure the density of the electrolyte. Re-measurement will need to be carried out after another 2 hours, and if the results obtained are identical, the battery is charged.
5. In order for the density of the electrolyte to reach an indicator of 1.28 g / cm3, it is necessary either to add more electrolyte with a higher density to it, or to dilute it with distilled water.
After the repair of the car battery is completed and its capacity is restored, a little more desulfation additive must be added to the electrolyte. The battery can then be installed and connected to the vehicle.
Before you repair a dead battery, you need to check it for other breakdowns. If there are none, and the battery has sat down solely due to sulfation, it can be restored in another simple and, most importantly, quick way:
1. Fully charge the car battery.
2. Drain electrolyte and rinse the car battery with distilled water. It is better to repeat the procedure several times.
3. Fill the battery container with a special cleaning liquid, which contains ammonia and trilon. Leave it in the container for about 40-50 minutes.
4. Drain the liquid and rinse the battery again with distilled water.
5. Fill with new electrolyte with the recommended density and charge the battery.
6. Discharge to restore capacity.
This completes the car battery recovery process. It is only important to take into account the fact that you will have to work with aggressive liquids, therefore, they must be poured and poured carefully, after wearing rubber gloves.
Now you know how to repair a car battery, but still do not forget that in some cases such an operation is not advisable. This may be due to such a feature of modern batteries as the lack of serviceability. In such a case, recharging and topping up with distilled water are the only recovery procedures applicable to the car battery.
But if the battery is of an older model and is subject to maintenance, it is really worth repairing it. However, if you also need to replace its main components, it will be cheaper to buy a new battery, since it is not entirely advisable to invest in an old battery.
Therefore, before starting to repair a car battery with your own hands, it is worth assessing the severity of the malfunction. If in monetary terms it will cost you less to buy a new battery - do so. If you yourself cannot make such a decision, seek advice from auto repairmen.
The battery is an integral part of the vehicle. Without it, the car will not be able to move. However, the battery, like other equipment, can fail.This article will guide you through common battery problems and how to fix them.
1. What batteries are there?
3. Options for battery repair.
Today there are two common types of batteries: lead-acid and lead-gel.
The first type of battery is the most common, however, manufacturers claim that such a battery cannot be repaired. In fact, such a statement is incorrect. In most cases, a lead acid battery is easy to repair. The service life of such a battery without repair is a couple of years.
The second type has no acid as an electrolyte. It uses a mixture with a thickener - silica gel. The advantages of a lead-gel battery are: complete absence of acid vapor emissions into the atmosphere and a long service life. But repairing such a device is extremely difficult, since there is little experience with it.
The key problem with a lead acid battery is sulfation. It arises as a result of the appearance of large sulfuric lead crystals. Crystals will appear only if the battery is discharged. In this case, the battery can still be saved.
Otherwise, the battery may dry out. The reason for this phenomenon may be a charge exchange with further dissociation. If distilled water is added to the water in time, then there is a chance to save the precious battery. But, if the battery is swollen, you should not do this. Usually such batteries are simply thrown away.
With continuous use of a battery with a low electrolyte density, there is a risk of irreversible damage to the battery.
To eliminate the sulfation of a lead acid battery, you need to work as follows:
1. Charge the battery with current several times. The amount of current should be small.
2. Charge with high voltage several times.
3. Flush the battery with Trilon B. Replace the old electrolyte.
4. At the end, you need to charge. Voltage with amperage must be stable.
It takes patience to save the battery, however, the process itself is quite simple. It is necessary to carry out 5 charge cycles. The current should be minimal. The duration of each cycle will be 8 hours.
The essence of such repairs is topping up water and charging. At the same time, the water must be distilled, and the charging must have an adjustment function. Initially, there is a voltage of 14 V for 15 minutes. Then there is a pause (also 15 minutes). Then comes the same charge, lasting a day. This is described for 3 cycles. The rest of the cycles run at 14.5 and 14.8 V.
Another option for repairing a battery can be charging at 1.5 Amperes. This charging takes half a day. Then a short charge is carried out and the stage is repeated. After a day, you need to check the voltage. If the voltage is less than 13 V, then the same charging cycle is repeated.
If you have Trilon B and ammonia at hand, then you can fix the battery in the following way. It is necessary to drain the acid, rinse the plates, pour in the solution. The solution is poured: Trilon 2% by weight and 5% ammonia. When gas evolution stops, the job is practically done. Then comes washing, filling with acid and charging. The duration of such a repair will take several hours.
In the event of a battery failure, our motorists solve the problem in different ways. Some immediately buy a new battery, others, in order to save money, do battery repairs on their own, and the restoration of car batteries today is not uncommon. Who wants to throw away extra money in a crisis? Read more about restoring battery performance in this article.
To understand how to fix a particular battery, you need to understand the nature of the malfunctions themselves, which can be the cause.It often happens that the restoration and repair of car batteries does not give results, so car owners simply have to throw away the batteries. As a rule, in this case, the battery does not show any signs of operability at all.
Using a multimeter to determine the battery charge
But there are other reasons why the battery fails. For example, we are talking about the deformation of the battery terminals, in this case it is quite possible to make repairs at home. If you are thinking of how to glue the battery in order to restore its performance, then it is better to refrain from this procedure. It makes no sense to either solder or glue the device, since you can never be sure of the results of such a repair process. As practice shows, one of the most common reasons why a car battery needs to be repaired is parasitic sulfation of the plates, which leads to an accelerated discharge.
It should be noted that this problem is most relevant for lead-acid devices, which are the most common today. It should be borne in mind that the restoration and repair of batteries can be carried out with out-of-service devices, in this case it is important to apply the correct repair strategy. Sulfation itself is the reason for a decrease in the level of the usable volume in the device, which is facilitated by frequent discharges and poor-quality battery charging. Storage of the battery without use can also cause sulfation.
In addition to sulfation, the repair of batteries must be carried out when:
swelling and complete deformation of plate blocks;
mechanical damage to the case or the cans themselves inside the device;
the plates are closed, and the closure, as is known, leads to the crumbling of active elements;
repair of batteries is also carried out with an internal break in the network, which can lead to the disconnection of the plates of the device with the leads.
One of the options for recovering a malfunctioning battery is to charge the device. It should be noted that charging should be carried out repeatedly with short breaks; this option is one of the most affordable for our motorists. As a result, numerous charges make it possible to increase the voltage of the device, as a result of which it will no longer be able to perceive the effects of current (the author of the video on restoring the device ->
But in this case, there is another side of the issue. With multiple charges, or rather, in the intervals between them, the procedure for equalizing the electrode potentials is started. In this case, the normalization of the state of the plates leads to the fact that the dense electrolyte begins to pass into the space located between the electrodes on the surface of the plates. Ultimately, in the intervals between charges, the voltage level on the battery decreases, and when the device is charging, it gradually begins to gain volume.
This method of repairing a car battery makes it possible to restore a device with the same composition from other types of equipment, and, if necessary, from electronic gadgets. Ultimately, the level of electrolyte density rises, respectively, the device acquires the state necessary for normal functioning. As for the charging time, this parameter is determined for a specific battery model, on average it is about 6-8 hours. But the breaks should be longer - from 8 to 16 hours.
Connecting the charger probes to the battery
Do-it-yourself car battery repair can include solving the problem with sulfonation of the plates. During sulfation, the battery completely loses its volume, since its internal components are affected by the developing sulfate.As practice shows, up to this point, it is advisable to either repair the device, or simply throw it away, since its operation in this state is impractical. But although this "disease" itself is quite severe, it is quite possible to repair the battery with your own hands.
The repair procedure itself in this case consists in supplying and maintaining the high voltage parameter at the same level for a certain time. But in this case, repairing car batteries on your own means charging with short interruptions, since increased voltage can lead to the release of gases. Moreover, the discharge can be quite intense, and this is not safe for human health.
How to fix your appliance with disulfation:
First, you need to fill the battery with water, for this it is better to use a specially designed distillate.
Further, a current should be connected to the device; for this, a balancer can be used.
First of all, a voltage of 14.4 volts must be applied in two cycles. In this case, the length of the first two cycles should be about 13 minutes.
After that, the procedure is repeated, but now the voltage level should be 14.6 volts. The duration of each cycle will be the same.
Charge determination table by the electromotive force indicator
Subsequently, the voltage build-up must be carried out until the battery capacity begins to increase. If you follow the steps above correctly, you can solve the problem with any battery. However, if the recovery procedure did not allow the battery to be repaired, you can only throw it away.
The method of prompt recovery allows the device to be repaired in a fairly short time. For this, a completely discharged device must be charged as much as possible. When the charging procedure is completed, it is necessary to remove all electrolyte from the structure, that is, drain all the water. After the device is empty, it must be rinsed several times, for this, a distillate is also used (the author of the video, which presents one of the most effective battery recovery options - Evseenko Technology).
After completing these steps, you will need an ammonia solution. As a result of the need to apply the solution, the repair of the battery must be carried out with complete isolation of the body, it is important not to allow the solution to come into contact with the skin.
It should be noted that the composition used should be based on:
The chemical solution you have prepared is an activator in the disulfation procedure. For prompt restoration of the device, the duration of this process should take from 40 minutes to one hour. It should be noted that the recovery procedure using a chemical mixture is usually accompanied by the evolution of gases, as well as the formation of fine splashes. The procedure itself can be considered complete when the gases stop escaping from the device.
When you notice that gases have stopped escaping from the battery, the chemical solution must be drained from the system, after which the inner cavity of the battery will again need to be flushed with distillate. After flushing, new electrolyte is poured into the device, and then the battery is fully charged. We have already written in more detail about how to properly charge the device; all the nuances of this process are described in this article.
When the battery is charged, you can check its performance and, if everything worked out successfully, you can put the repaired device on your car. Not everyone wants to play with acids, but this is not for everybody. Observe safety precautions (video author - Accumulator).
This repair option has some similarities with the high voltage recovery method. However, here too there are some nuances that must be taken into account. In particular, in this case, a stable voltage must be applied to the discharged device, its level should be about 15 volts.It is by no means possible to increase this parameter, since this will lead to a complete breakdown of the device, but it is also not necessary to reduce the voltage.
The device should be in a state of charge for about 12-13 hours, later it will need to be slightly discharged. To do this, it is not necessary to put the battery in the car, you can use a regular incandescent light bulb that is connected to the device. As practice shows, when exposed to a constant voltage device, repairs give virtually one hundred percent result in terms of restoring the device.
The procedure itself is repeated twice, after which the voltage parameter on the device is measured. In the event that during the check it turned out that this figure is about 13 volts, this indicates the normal state of the device and that it can be safely installed on your car. But if during the diagnostics you revealed that the voltage at the terminals is less than 10 volts, the only way out is to replace the battery. In this case, the device is considered faulty, respectively, the repair will no longer help it. Remember that only proper use and maintenance of the battery will increase the service life of the battery.
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Video (click to play).
The fact that an ordinary car enthusiast needs to know about maintaining the battery and how to carry it out correctly, you can find out from the video below (the author of the video is VAZ 2101-2107 REPAIR AND MAINTENANCE).
