{"id":7764,"date":"2020-06-04T02:42:00","date_gmt":"2020-06-04T09:42:00","guid":{"rendered":"https:\/\/carupgrade.co\/?p=7764"},"modified":"2020-11-12T16:55:08","modified_gmt":"2020-11-13T00:55:08","slug":"car-battery-corrosion","status":"publish","type":"post","link":"https:\/\/carupgrade.co\/blog\/car-battery-corrosion\/","title":{"rendered":"Car Battery Corrosion \u2013 What Are The Causes and How to Remove It"},"content":{"rendered":"\n

If you\u2019ve owned a car for an extended time, you understand that corrosion builds around the battery. It starts at the terminal and, at first, seems harmless but may potentially cause damage to your car engine. Neglection of these problems can even lead you to have battery failure or engine seizure. Therefore, it is important to understand what causes corrosion in the battery of your cars.<\/p>\n\n\n\n

What Is Corrosion?<\/strong><\/h2>\n\n\n\n

Corrosion build-up in your battery can differ in color from being white to green or bluish. It is often powdery, and even salty in taste. Although it is not advised to taste it, this corrosion starts forming around the terminal of your battery. Over time, it keeps building and turning into a chunk that eats your battery.<\/p>\n\n\n\n

It is a natural occurrence. You can not control or stop the corrosion of metals. However, there are many ways to either maintain and prevent this corrosion for a prolonged time frame.
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How Does Corrosion Build-Up in Batteries?<\/strong><\/h2>\n\n\n\n

Primarily, corrosion is common in batteries that use acid and lead. Sulphuric acid is a common acid poured in these batteries. <\/p>\n\n\n\n

The corrosion builds up over time due to the shift in the temperatures around the battery. It leads to the formation of gases that exhausts from the battery vents. However, this ventilation can also lead to a mixture of gases with anything in their immediate surrounding. When they mix up with an agent or element, it causes corrosion.<\/p>\n\n\n\n

Corrosion does not have any particular time-limit or requirement. It can form at any time, and the severity depends on the quality of the battery, acid, elements in contact, and several other factors.
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What Are The Causes of Battery Terminals Corrosion?<\/strong><\/h2>\n\n\n\n

As you have understood, there are many factors contributing to the build-up of corrosion. However, as stated, corrosion can differentiate in colors and textures. Therefore, you need to distinguish between these reasons to rectify the problem adequately. <\/p>\n\n\n\n

Similarly, it can also help you in determining when you need a change or service for the battery:<\/p>\n\n\n\n

Too Much Water: <\/strong><\/h3>\n\n\n\n

A battery requires water to operate. If your battery runs out of the water, then it will \u2018dry out\u2019 and wouldn\u2019t operate optimally. The opposite is also true. If you fill your battery with excessive water, then the overflow will lead to corrosion. Therefore, it is important to keep track of the electrolytes and only fill up to the maximum mark. <\/p>\n\n\n\n

Take care of the temperature, as well. It is ideal for filling the battery in a cool or room temperature to gauge it adequately. This will provide electrolytes enough space to expand without causing corrosion.<\/p>\n\n\n\n

Excessive Charging: <\/strong><\/h3>\n\n\n\n

You might have heard that it is not a good idea to charge any battery for a prolonged time. The same goes for the batteries of your car. Overcharging a battery wouldn\u2019t only cause corrosion, but also reduce its performance.  You might have seen batteries budge, or expand when they are charged for too long. It is due to the rise in temperature that makes the electrolytes react. <\/p>\n\n\n\n

Hence, it leads to the release of the pressure from the battery either through vents or by forming cracks. Even batteries with proper ventilation and pressure control can\u2019t completely contain pressure. Thus, you will end up with a corroded battery due to the overflow of the electrolytes.<\/p>\n\n\n\n

Hydrogen Release: <\/strong><\/h3>\n\n\n\n

The gas is present in the atmosphere, which is usually harmless. However, when it releases from the battery, there are other factors such as temperature and pressure. We can not forget that batteries also contain acid and other agents. Relatively, hydrogen gas is released in a higher quantity from the batteries. <\/p>\n\n\n\n

It either happens due to overcharge or undercharge. An undercharged battery is an exhausted battery without any power. Either way, the hydrogen gas released can be a contributing factor to corrosion build-up mainly because it will mix with other elements and agents to cause unwanted reactions.<\/p>\n\n\n\n

Electrolytes: <\/strong><\/h3>\n\n\n\n

As you might have noticed, electrolytes seem to be a primary cause of corrosion. Usually, batteries have a build to contain the acid and control other reactions. Most of the batteries even come with ventilation or pressure control. <\/p>\n\n\n\n

However, electrolytes can still leak out, especially around the terminals, causing corrosion. While most of the high-grade and maintenance-free batteries will discard the need for many cautions, during a filling or charging, it is important to keep a note of electrolytes overflow.<\/p>\n\n\n\n

The Copper Clamp Reaction: <\/strong><\/h3>\n\n\n\n

Copper is used as clamps because of its exceptional longevity. It does not corrode by itself and usually has better conduction of electricity. This is the primary reason most of the electric wires use copper, and the same goes for the battery. <\/p>\n\n\n\n

However, when the leakage of acid or gases is ensured from the battery, it can very-well mix with the copper to cause a reaction. The primary cause of this corrosion is sulphuric acid and the release of its gas that mixes with copper. <\/p>\n\n\n\n

By mixing with copper, copper sulfate is produced that corrodes the terminals. These are the primary reasons for blue or greenish crystallization corrosion around the terminals.<\/p>\n\n\n\n

Timespan: <\/strong><\/h3>\n\n\n\n

A battery is bound to malfunction sooner or later. However, most of the modern batteries last up to 5 years. This is also a good point to note that when you get a lifetime warranty or guarantee, then it is only a 5-year plan or promise for the batteries. <\/p>\n\n\n\n

No company actually means \u2018your lifetime,\u2019 but the standard \u2018battery\u2019s lifetime.\u2019 Overtime, your battery will start to wear out and corrode. If you use the battery past the 5-year time frame, it will only cause problems for you.
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The Consequences Of Corrosion<\/strong><\/strong><\/h2>\n\n\n\n

Modern vehicles are full of circuits and modules that rely upon batteries to function. Even when your car is not running, the battery is providing them a little backup to function optimally. <\/p>\n\n\n\n

These are the list of problems you might face with corroded battery:<\/strong><\/p>\n\n\n\n