How to Clean Battery Corrosion Cleanzen Infographic


Over time, battery acid can leak out of batteries, and this often results in corrosion around the battery terminals. While this leakage is normal, the corrosion can have a significant impact on the battery’s ability to provide power to your vehicle, remote control or other battery-powered equipment.


However, you can easily remove the corrosion and enjoy full use of your equipment once again when you know how to clean battery corrosion the right way.


What is Battery Acid?


Battery acid is found in all batteries, including your car battery and batteries used around the house. This is a highly corrosive liquid that ultimately can damage your devices and equipment. More than that, if you are exposed to it, the battery acid can be harmful.


When acid leaks from alkaline batteries, that fluid will turn into a powdery, white crust. This blocks the terminals, impairing the batteries’ ability to power your devices. Lithium-ion batteries are also used around the house. While these batteries don’t leak, they can suddenly stop delivering power. They could even explode or cause a fire.


What Causes Car Battery Corrosion?


As energy passes between the battery and the terminals, the water and sulfuric acid in the battery will undergo a chemical change and turn into potassium hydroxide. In addition, hydrogen gas is emitted from this process. When it interacts with copper wire, aluminum terminals and other metallic surfaces, that hydrogen acid can damage the metal.


Is Battery Corrosion Dangerous?


Battery acid contains potassium hydroxide, which is both caustic and toxic.


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This means that it can harm your skin, eyes and respiratory system. Because of this, you should always take safety precautions when handling corroded batteries and when cleaning the terminals. This includes wearing eye protection, a face mask and gloves. Keep in mind that lithium-ion batteries can cause injuries related to a fire or an explosion.


What Is Best Way to Clean Battery Corrosion?


While battery corrosion is dangerous, it is easy to clean with products that may be in your kitchen today.

These products are baking soda as well as either lemon juice or white vinegar. The baking soda works by neutralizing battery acid. Both vinegar and lemon juice will then react with the baking soda or decompose the corrosion for easy removal. Here’s the step by step guide on how to clean battery corrosion:

  • Lay down an old rag or piece of cardboard as a protective work surface. Put on gloves, a face mask and safety glasses to protect yourself from harm.
  • Pull out the battery. Rather than tossing it into the trash, make plans to throw it away in your trash service’s hazardous waste removal service.
  • Then, focus on cleaning the corrosion off of the battery terminals and device. Pour a small amount of baking soda on the corrosion.
  • Dampen a cotton swab with the lemon juice or vinegar. Then, use the wet cotton swab to dampen the baking soda on the terminals. You will notice that the baking soda starts to fizz.
  • After several minutes, use a cotton swab that is damp with fresh water to wipe away the corrosion and baking soda.
  • After the terminals are completely dry, install new batteries.


Here’s a guide on how you can simply clean the corroded terminals of your favorite electronic devices:



How to Prevent Battery Corrosion


Battery corrosion happens when the acid in the batteries leak and dry on the terminals. This leakage is common and normal. Furthermore, you cannot prevent the leakage or corrosion. Instead, you need to proactively clean the terminals before the corrosion completely prevents energy from being distributed to the device.


How to Dispose Used Batteries


Old batteries should never be tossed in the regular trash. This is because the acid can leach into the soil. When this happens, it can work its way into the community’s water supply and harm the environment.How to Clean Battery Corrosion Cleanzen Image of Recycled BatteriesMany stores collect old batteries and recycle them properly. Simply collect old batteries in a plastic container or box. When the container is full, drop the batteries to local recycling locations like Earth911 and Call2Recycle. You can also return your old car battery to your automotive facility or shop for safe disposal.


Are you stressed out by the state of your home? Your home can grow dirtier and more disorganized by the day, so it requires your regular attention with weekly cleaning and deep cleaning. If you need help around the house, our professional cleaners in Massachusetts are ready to help. To learn about Cleanzen cleaning services, contact us today.


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