Often the cause of problems when starting the engine is not a discharged battery or broken generator. The car may not start due to the banal oxidation of the terminals. White-blue, similar to frost Crystalline oxide create big resistance between terminal and outputAs a result of which a lot of energy is wasting.
As a rule, the oxide is formed due to the ingress of battery-acid vapors on lead. It can evaporate from the microscopic gap between the outputs and the battery case, and may be released from traffic jams. It is worth paying attention if a lot of oxide is formed on terminals: it is, with a high probability, means that the generator gives excess energy and the battery "boils" Due to reloading.
To be confident in the start of the car, you need to periodically clean terminals and currents. In the case of a rush, you can simply slip oxide with a knife or to lose the oxidized seats of the sandpaper. But it is better, of course, not to subject the transmission location by mechanical exposure and treat the terminals with aqueous solution of soda.
Before cleaning, you need to drown out the engine, pull the ignition key from the lock and remove the terminals. In order to accidentally not shove the battery key on the body, the first is removed negative terminal. Soda composition is prepared very easily: a tablespoon of soda on a glass of water. The resulting liquid with a toothbrush is considered all the corrosion formed first from the top of the terminal, then from the lower and inner contact part. Deep corrosion can be cleaned with shallow sandpaper. After the procedure, the terminals are washed with hot water and dried. Instead of soda solution, you can use mineral water or coca-cola, but it is already not to use things for lovers.
To avoid electricity losses during further operation, need to seal the connection place. For this purpose, felt or felt rings are well suited, which for additional efficiency can be soaked with oil. Such rings are suitable for currents, protect terminals from acid evaporation. After a dense fixing of the terminals, they are treated on top with technical vaseline, solidol or special lubrication from the auto accessory department. It is important that oil or any lubricant did not hit the connection Terminals and output, because lubricants by nature of their dielectric (insulators).
Finally, we pay attention that the deformation of the terminals and their loose tightening, as the oxide lead to the loss of energy. So, damaged terminals must be immediately changed. Otherwise, it will be very soon to change the battery along with the onboard electronics.
Many motorists, especially with experience, had to see the oxidized battery terminals. This is a flaw, which prevents normal battery life. If the flair is too big (not visible the terminal itself), then the car can simply not start (especially in the winter period of time). Therefore, it is necessary to get rid of this. How to do it, and why the terminals are oxidized, explains our freelance correspondent.
Why is the oxidation of the terminals harmful?
Everything is simple: the contact of the electrode of the battery and the terminal itself is worsening, the battery cannot work normally and charge. Thus, the car will experience bad engine launches (it is possible to disappear by the starts), as well as deep discharges of the battery, for which it is simply destructive. Thus, it is necessary to get rid of the raid (oxidation of the terminal), and look for the causes of its occurrence.
How to Clean Flap?
And then everything is simple. We remove the terminal from the battery, it is not always because of the raid, then the usual shallow "sandpaper" (emery paper) or a metal brush believes. It is necessary to completely remove the flare as with the terminals (and especially carefully clean inside), and from the electrode of the battery itself. It is necessary to clean up to shine, but do not get drunk too much!
Much forces are not necessary!
Oxidation of the terminals may occur due to damage to the attachment. When you tighten the nut, you need to keep the bolt and nut with two keys. Many are attracted simply one nut, thereby breaking the electrode of the battery. Steam electrolyte seeps through it and the oxidation of the terminals begins.
Can be made of copper or brass
You can install on the battery of the Copper or Brass terminals. It will give the best engine launches in winter (due to better conductivity) and less oxidation, and in the end and the best charging of the car battery. But they are not suiced, for example, one copper terminal can cost up to 1000 or more rubles.
Causes of oxidation of terminals
The main reasons are two. Although secondary may be more.
Poorly tightened terminal. In my practice, the ownership and repair of the car had to face such a phenomenon as poorly tightened battery terminals. That is, they are thrown on the electrode, but tighten the bolt to their side did not guessed. Although you need to do it! Because of this mount, there is a bad contact of the electrode and terminals, which contributes to rapid oxidation, you need to clean the terminal and tighten it well. The main thing is not to break! Do not pull to "Duri", you need to firmly sit.
Electrolyte leakage. The most common cause of the oxidation of the terminals is the battery electrolyte leak. The electrolyte is an acid that, falling on the terminals, enters the chemical reaction with the electrode, and oxidation occurs. Of course, in modern maintenanceable batteries, such problems may not be, because the electrolyte is in a closed part of the battery (there evaporates there, there is also falls back to the sediment, without disappearing into the environment). But it happens that the battery is already pretty worn, and the electrode in the battery sits not firmly, microcracks are created through which the vapor-shaped electrolyte is selected. All this falls on the terminal, and it is oxidized. This is a direct "bell" of the car owner that the battery (especially maintained) is faulty and lives its last days.
How to deal with oxidation
- It is necessary to determine if your electrite electrical electrodes are missing or not. If you skip, you need to try to exclude it from entering the terminals. Many use a gasket that dresses tightly on the electrode, it can be cut out of suitable materials itself, here's a photo.
- You can handle the terminal and electrode with thick lubricant. The simplest thing is to apply "Litol", although now you can find special lubricants that prevent the appearance of plaque and even struggle with electrolyte leaks.
Blue plaque is a special composition applied on battery terminals
- The most radical method - change the battery! If your battery (maintenance free) passes the electrolyte, it is no longer good! It means that he can fill the electrode.
It is necessary to deal with the oxidation of the battery terminals, you also need to protect them from oxidation, preferably special compositions. Such care will extend the battery operation, and will also improve the launches in cold weather.
To avoid such a problem, you should periodically view the contacts, and if necessary, clean. However, simply cleaning the terminals does not always solve the problem, so it is better to look for the main cause of oxidation.
Causes of the oxidation of the battery terminals
If you have such a problem, first of all you should find the reason why the terminals are oxidized on the car battery. There may be several reasons:
- The development of the battery resource when the seal rods have already fucked.
- Leakage of the filled electrolyte. The reason that meets most often. Since the electrolyte is an acid and its contacts to contact with the reaction, which results in the oxidation process.
- Electrolite having invalid density readings. To avoid such situations, when it is replaced, only the finished composition should be used. It is not recommended to extract the components to the established proportions.
- Tightening terminals. A loose fastening of the electrode on the terminal gives a bad contact, causing the reaction. This situation can be corrected by cleaned the electrode and the terminal. To install everything and tighten well, but you should not overdo it, because there is a possibility to rip fasteners.
Experienced drivers have repeatedly encountered this problem, so they can easily explain why a plus or minus battery terminal is oxidized.
Most often oxidized minus battery terminal. The main cause of oxides is the battery wear. Microcracks begin to appear in its case, of which the electrolyte is actively becoming, whose pairs turn into oxides.
In this case, the negative terminal must be periodically cleaned to the brilliance, although most drivers remove only oxides, not a touch lead. It is incorrect because if the contacts are unscrewed, they must be treated in the most thorough way.
Why oxidizes a plus terminal on the battery? There are just two answers:
- The systematic reload of the battery, as a result of which the electrolyte is overheated and starts to evaporate.
- Somewhere there was a violation of the tightness of the ACB hull, which requires operational intervention in the situation, since acid over time may even pass the case.
Oxidation terminals of battery - symptoms and signs
One of the most obvious and common signs of oxidation of the terminals is dim, not bright light of headlights, overall lights, stop signals, turn signals with complete charging of the battery. Also possible is the oxidation of the terminal in the event that, if necessary, you do not "grab" from the first time, or very hard scrolls the crankshaft, as if the battery is discharged, although in reality it is not so.
How and what to clean the terminals of the battery
White raid on the terminals of the battery is a oxidized lead, which needs to be erased for the interaction of the electrode and contact. Since these elements of the chain are metal surfaces, they are intensively cleaned, without fearing to damage and without observing the special rules.
There are many ways to clean the battery terminals. It is possible to easily and efficiently remove the white flare as chemical reagents available in the trading network and undergraduate means. The most efficient and accessible are the following methods:
- Sandpaper. Before cleaning the terminals and electrode, turn off the engine and remove the key from the ignition lock. So that this process does not occupy a lot of time, for these purposes it is better to use sandpaper with the largest grain size. This method is quite simple, and the sandpaper perfectly erases the tracks of oxidation and eat almost everyone. It is necessary to clean the electrode and terminal to a brilliant state.
- To remove the residual acid remnants from the terminals, the soda solution can be used. If the acid has in contact with the metal, small bubbles will appear during the processing of the terminals. The ratio of soda and water: 1 tbsp. Spoon on a glass. After washing with such a solution, it is necessary to remove the remnants of soda with the terminals, it is enough to wipe them with a wet cloth.
- Petrol. A less convenient method of stripping the electrode and terminals from oxidation. Gasoline is good and quickly corrupt the oxides, however, there is a chance to get into rubber or plastic components, which can negatively affect their strength. If you decide to clean the terminals in this way, it is necessary to moisten the rag with a gasoline and carefully rub the terminals until complete removal of oxidation traces.
Important! To clean the terminals and electrical contacts, it is extremely undesirable to apply WD tools. In addition to the oil, they contain aggressive conductive cleaning products of an unknown for the buyer of the composition. Also cannot be used acetone because it eats even metals.
Effective battery terminals
1) Litol, solidol. To protect terminals from aggressive impact, solid lubricants - solidol or lithol, which are took-conducting, were used as the main materials. As a result of the processes of expansion of contacts, under the temperature effect, these lubricants penetrate into the cross-stroke zone, and over time, almost in all cavities of the contact area.
Moreover, in the process of natural wear, as well as with substantial temperature differences, the technical characteristics of solidol and lithol change - they solidify. If you decide to apply a litol or solidol it is recommended: when working on contact cleaning twice a year, a complete replacement of lubricant is necessary (removal of old, applying a new one).
2) Silicone grease. Ideal for processing terminals and electrical connections. However, when purchasing it, it is necessary to pay attention to that there are no conductive additives in the composition (as a rule, manufacturers are warned).
Such a lubricant not only delays the impact of the aggressive environment, but also pushes it. The processing of the battery terminals occurs solely in the integrated use with other preventive materials. It makes it on a pure treated surface, after which they start connecting parts.
This lubricant has one disadvantage, meaningful to processing the battery terminals - fluidity. Silicone lubrication with time leaves contact and when it is used, it is necessary to regularly injure.
3) Special funds. Now there are a lot of funds designed specifically for the processing of the battery terminals. There are detailed instructions on their tubes. Undoubtedly, such funds are better than using solidol or other dubious substances. They are based on a protective oil medium and, as a rule, it is a vaseline oil. How to lubricate the battery terminals so that they do not oxidize - the choice of car owner. All means and the above methods are equally good, it remains only to choose the most acceptable.
Service AKB
In order for the oxidation of the battery terminals, it was the reason for the sudden stop of the vehicle, the following works should be performed regularly:
- external examination of the surface and contacts of the battery once a month;
- when traces discovery on the terminals of oxidation, immediately check the tightness of the battery;
- in the warm season, in the servants serviced once a month, control the level of electrolyte;
- once every 3-4 months (in summer and in winter more often) wipe the surface of the battery with dry wind;
- before starting the winter season, it is necessary to check the status of the terminals (how much they heat up during the start of the engine "on the cold"), even if there is a slight heating, you should check the contacts and make them additional processing.
It should be remembered that in the cold season, one of the common causes of the engine start failure are the problems associated with the battery. Often this reason is precisely in the oxidation of the battery terminals. Protection of the battery terminals from oxidation is an important process, so regular control and preventive measures will help to avoid such a situation.
The impurities on the battery contacts can shorten the service life, and can also cause current loss. Maintaining battery contacts in cleanliness will not only extend the life of his life, but also save money.
Cleaning of lead-acid batteries
- Discover access to the battery and appreciate its condition.. To view or clean the battery, you do not need to remove it completely. For comfortable access, open the car hood and find the battery. Check out its general condition. If there are cracks on it, you must replace it. If it seems, everything is in order, then continue to perform further actions.
- Evaluate the degree of corrosion of contacts. Plastic or rubber caps from the top side of the battery remove and remove to the side. Check out battery cables and clips for wear or corrosion. Corrosion has a kind of white powdered clutch around one or both battery contacts. If corrosion damage is extensive, then the terminals and cables should be completely replaced to avoid future possible trouble. However, if the terminals and cables look well, and only slightly contaminated, clean them according to the instructions below.
- Turn off the car battery. Before you start, you must disable battery. To do this you need the key to weaken the clutch of the terminal. Disconnect the "negative" terminal first marked with a symbol.
The order is very important! Only after disconnecting the negative terminal, you can turn off a positive clamp marked with +.
Remove the clamp can be difficult, especially if they are strongly rusted. You may need pliers for their disconnection. If you have to use any metal tool, you need to act only tweezers, but be careful that you cannot touch the car frame (or other metal) while working.
- Cook cleaner. Mix 2-3 teaspoons of food soda with a teaspoon (approximately) water. Mix to the state of the paste.
- Apply the mixture to contacts. Lubricate soda paste accumulator contacts. Be careful, despite the fact that the food soda, in itself, is quite safe, watch it does not get on other components of the car. After applying the soda mixture, you will see the result of the reaction with corrosion (starts foaming).
The paste can be applied with an old toothbrush, a damp cloth or even hand in a glove.
- Delete deposits. If there are many oxides on the battery contacts, they should be scraped mechanically. For this, the old stupid knife is well suited. Once you delete the biggest sediments, use the wire brush to remove the rest of the rest.
- There are special brushes for the "cleaning of contacts on the battery", which can be purchased in most parts of the spare parts.
- During cleaning, it is desirable to use vinyl gloves (those that for washing dishes). So you will avoid contact with potentially weary substances.
- Rinse contacts on the battery. When the soda stops the foaming and the battery there will be no more than the layer of oxides, which must be scraped, you need to "rinse" contacts. Use only a very small amount of water.
Be careful, soda paste should not get inside the battery, as the soda can neutralize the acid and reduce the battery life.
- Seeing Contacts. Wipe the contacts to dryness with a clean dry cloth.
- In order to avoid re-corrosion. Apply a few water-repellent lubrication, such as Vaseline. This will help slow the corrosion process.
- Install terminals back. First connect a positive clamp, then only then a negative clamp. Tighten them as needed, the key. Return to the place plastic or rubber protective cover terminals.
- Ready!
Cleaning alkaline battery contacts
Warnings:
- Battery should be considered a dangerous device. When removing, it produces hydrogen gas, so they can be explosive. Therefore, do not clean near open fire and avoid the occurrence of sparks.
- Corrosion around the battery contacts can cause a chemical burn, so be careful. Use gloves and eye protection.
- Batteries contain strong acids or alkalis, and the other can burn the skin and eyes. Never try to open the battery.
Almost every car enthusiast heard or personally faced such a concept as the oxidation of the battery terminals. The essence of this phenomenon is a chemical process that causes a characteristic flaw and makes it difficult to work the battery. In this article, we will talk about the reasons and consequences of this unpleasant process, as well as give several valuable tips. Practically, every car enthusiast heard or personally faced with such a concept as the oxidation of the battery terminals. The essence of this phenomenon is a chemical process that causes a characteristic flaw and makes it difficult to work the battery. In this article we will talk about the reasons and consequences of this unpleasant process, as well as give several valuable tips.
So, battery oxidation And his terminals are a process that sooner or later comes in any car battery. Most often this happens in cold and wet weather, which contributes to the spread and increase in the intensity of the chemical reaction on the surface of the contacts. You ask, but what does such a state of AKB promise? The result of oxidation is a complete or partial refusal of the car. He simply cease to start, and you will not be able to continue the operation of the car.
In order to get rid of the tax on the terminals of the battery, it is enough to clean the special brush, as well as lubricate the contacts with antioxidant lubrication. However, sometimes it will be not enough, because the root of the problem can be hidden in a completely different place.
Reasons for the oxidation of battery contacts:
1. A frequent and easy-corrected reason is weak contact between the terminal and the battery electrode. The motorists are very often just put on the Ring of the terminal on the battery and begin to operate the car, not even thinking that it is necessary to carry out the appropriate tightening bolts. In this case, you just need to remove the terminal and clean it with a brush, then put on and high qualityly tighten. Try not to resort to excessive efforts not to thread the thread.
2.
A common cause of the oxidation of the battery is the leakage or the leakage of the electrolyte - acid, which is inside the battery. Possessing certain properties, it falls on the metal terminals and excites the chemical reaction, which is the consequence of the characteristic white-colored row. If this happens, then you need to think about the replacement of the battery, because its tightness is broken. New battery. It reduces various electrolyte leaks. 
IMPORTANT: the consequences of oxidative processes in the battery is the imperative engine launch, due to the weak contact between the terminal and the electrode. The area of \u200b\u200bcontact decreases significantly, and the resistance increases, which does not allow the current to flow normally in the vehicle electrical system.
Output
If you encountered the fact that the auto does not start and weakly light indicators on the instruments, first of all check the quality of the contacts on the battery, and also timely carry out the maintenance of your iron horse.
