Any car battery is filled in with sulfuric acid. Chemical reactions between sulfuric acid and metal pins of a car battery result in corrosion on a car battery.
Corrosion on car battery terminals may be one of the reasons for why your engine doesn’t start. Corrosion occurs as the result of the hydrogen gas being released from the sulfuric acid inside a car battery. The gas reacts to the atmosphere it is in. As a result, there occurs a corrosion environment. If there are salts and a high level of humidity present, they only contribute to the process. It’s common for the corrosion to occur on the negative battery terminal. It means that a car battery is not charged enough. The main reason for it is that the electricity generator doesn’t have time to make up for the lost power capacity of a car battery because of the increased electricity usage in the electric main of a car and also because a car is used not often. In case corrosion occurs on the positive battery terminal, it means that a car battery is overcharged.
Main reasons for the occurrence of corrosion on battery terminals
- 1. Condition of a car battery. The thing is that the electrolyte maybe dripping. As a rule, it’s caused by the overcharging of a car battery that occurs due to the wrong functioning of the generator.
- 2. Defects in the electricity main of a car. There may be poor contact between battery terminal and a battery itself.
- 3. The vent holes of a car battery jars may be clogged. As a result, the pressure of the electrolyte inside the car battery may be increased. Consequently, it starts dripping through cracks and fractures in a jar.
You should also pay attention to the quality of a battery jar. As a rule, the electrolyte may be dripping due to the cracks and fractures on a battery jar. Then, the electrolyte may get on a battery terminal through a crack close to the contacts of the battery. As a result, corrosion will occur. Mist often, fractures occur because of a battery terminal vibration and loosening of a battery terminal inside of a battery jar.
Most often, the occurrence of corrosion is the sign that you need to urgently change your car battery.
Corrosion may also result in a number of other problems that have to do with a car battery. The list of such like problems involves the damage of car frame, electric wiring and air conditioning. If you want to prolong the service life of your car battery, you need to necessarily take certain preventive measures against corrosion.
How to Prevent Corrosion On a Car Battery Terminals
- 1. Pay attention to the functioning of your car. It should function properly.
- 2. You need to regularly examine your car battery, clean dust off it and check whether battery terminals are loose.
- 3. Disconnect your car battery from the battery terminals in case you go on a holiday and won’t use your car for a long period of time. This way you’ll prevent the case of electrolyte dripping.
- 4. You should not only pay attention to the condition of a car battery, but also check the condition of battery terminals and contacts.
If you notice even the slightest corrosion on battery terminals, you need to remove it. It’s not hard to do it. However, you need to follow certain safety rules when doing it.
Safety Rules for Prevent a Car Battery Corrosion
– Put rubber gloves on and disconnect battery terminals from your car battery. You need to disconnect the negative battery terminal first. It may have a munis sign drawn on it (-) or there may be the abbreviation “NEG” written on it. Negative battery terminals are black in color. Next, you need to disconnect positive battery terminal. It may either have a plus sign drawn on it or the abbreviation “POS” written on it. Positive battery terminals are red in color.
– Check if there are any signs of corrosion and deterioration on battery terminals. Check if there are any fractures and cracks, or signs of insulation damage.
– Cover the places where there is corrosion with special cleaning substance. It will not only remove the corrosion, but also neutralize a car battery acid. If necessary, do it once again.
You can find lots of tips on the Internet telling you to use soda and other substances you can find at home instead of the special cleaning substance. Of course, all these substances may be great. Still, the majority of them won’t remove and neutralize toxic acid of a car battery. Besides, such like substances may damage the engine of your car. Under no condition should you use Coca Cola in order to remove corrosion. It contains synthetic sugars and phosphorus acid that may damage not only the engine of your car, but also the items located near it.
– Once corrosion is removed, dry your car battery, the metal pins and the battery terminals. The best way to do it is to use microfiber. Remove the last signs of corrosion using a brush for car battery terminals.
– Use certain protective layer pads for the battery terminals. They are also called corrosion resistant layer pads. You need to put a layer pad on each metal pin. You’d better buy the layer pads soaked in a corrosion resistant solution.
– Connect battery terminals to the car battery. You need to connect the positive battery terminal first. After it, you need to connect the negative battery terminal.
– Cover the battery terminals with a corrosion resistant solution.