Just like their smaller household cousins, larger automotive batteries also lose charge, wear out, and break. And just like those small batteries, car batteries have the same problems—just on a larger scale. There is hazardous waste in car batteries that makes them unsafe to throw away in the trash but can also corrode over time if left in place. Learn how to safely handle and dispose of car batteries and the hazardous materials they contain. For information on other automotive waste and household batteries, including proper handling and disposal, see the dedicated page below:
Hazards
- Automotive batteries contain sulfuric acid that can burn skin.
- Almost all car batteries contain the heavy metal lead, making them an environmental hazard.
Handling
Disconnecting batteries:
- Take precautions if disconnecting a car battery at home. Wear gloves and eye protection and confirm both negative and positive leads. Learn more on our blog.
- Handle batteries with acid-resistant rubber or leather gloves.
- Keep sparks and flames away from batteries and don’t smoke nearby.
Storing batteries:
- Never place metal objects on top of the battery because it can cause sparks. Cover battery posts with electrical tape. Remove rings, chains, and other metallic items before handling.
- Keep batteries right side up.
Moving batteries:
- Carry batteries in non-metallic, leak-proof containers. If a battery leaks, neutralize any spilled acid with baking soda or calcium carbonate (lime). Flush the area with water.
- If acid comes in contact with the skin, flush the area with water immediately and seek medical attention if burning continues.
Management Options
- Do not throw batteries in the trash. Automotive batteries are banned from landfills and combustion facilities in Massachusetts.
- Most automotive battery retailers will accept used batteries when purchasing a new one.
- Take to a permitted Household Hazardous Products Collection Center.
- Most community recycling centers and household hazardous waste events accept automotive batteries.
This information was brought to you by the Massachusetts Department of Environmental Protection (MassDEP) and NEDT. For more information, including links to their guides, visit our Fact Sheets & Links page, and make sure to check out our NEDT Blog and Household Hazardous Products Resources for more in-depth information.
