How To Put Out A Lithium Battery Fire

Lithium batteries are increasingly common in our daily lives, powering everything from smartphones and laptops to electric vehicles and energy storage systems. While these batteries are generally safe and reliable, they can pose a serious fire hazard if damaged, overheated, or misused. It's crucial to understand the risks associated with lithium batteries and know how to respond effectively in case of a fire.

At First-Line Fire, we’re here to educate you on fire safety and help you keep your property safe.

Common Causes of Lithium Battery Fires

Prevention always starts with identification. Some of the most common causes of lithium battery fires include:

  • Physical damage (punctures, crushing, or severe impacts)

  • Overcharging or charging with incompatible chargers

  • Exposure to extreme temperatures (both hot and cold)

  • Manufacturing defects or poor design

  • Short-circuiting due to improper handling or storage

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How to Extinguish a Lithium Battery Fire

Safety First

Ensure your own safety and the safety of others. Evacuate the area if necessary and call emergency services if the fire is large or uncontrollable.

Use The Right Extinguisher

Use an F500 fire extinguisher or a similar lithium-ion capable extinguisher. Once a thermal runaway begins, the best option is to submerge the battery in water and contain it. However, be aware that this process may produce toxic gases.

Smother The Fire

If no extinguisher is available, use a large amount of sand, baking soda, or dry cement to smother and cool the burning battery. Avoid using water or foam, as they may not be effective in stopping the thermal runaway process.

Cool And Contain

If possible, remove the burning battery to a safe, outdoor area away from flammable materials. Continue cooling the battery with a large amount of water from a safe distance until the fire is fully extinguished.

Monitor And Dispose

Even after the fire appears to be extinguished, continue monitoring the battery for at least 24 hours, as re-ignition can occur. Dispose of the damaged battery properly through a certified battery recycler.

 

Best Practices for Lithium Battery Safety

Always use the charger and cable provided by the manufacturer or a certified third-party accessory.

  • Avoid exposing batteries to extreme temperatures, direct sunlight, or moisture.

  • Store batteries in a cool, dry place away from flammable materials.

  • Regularly inspect your devices and batteries for signs of damage, swelling, or overheating.

  • Follow the manufacturer's guidelines for charging, discharging, and handling lithium batteries.

  • Properly dispose of damaged or depleted batteries through certified recycling programs.

By understanding the risks, knowing how to respond to a fire, and following best practices for handling and storage, you can significantly reduce the risk of lithium battery fires and ensure the safety of yourself and those around you. Stay informed, stay prepared, and prioritize safety when dealing with these powerful energy storage devices.