Blog Post

Lithium ion batteries power everything from smartphones and laptops to electric vehicles and power tools. While these batteries are efficient and long-lasting, they also come with potential fire hazards. Understanding the risks associated with lithium-ion battery fires and knowing how to respond can help prevent dangerous situations.

Why Do Lithium Batteries Catch Fire?

A lithium ion battery fires occur due to a phenomenon called thermal runaway. This happens when the battery overheats, causing a chain reaction that leads to combustion. Common causes of thermal runaway include:

• Overcharging or overheating – Excess heat can cause internal components to break down.
• Physical damage – Puncturing or crushing a battery can cause a short circuit.
• Manufacturing defects – Poorly made batteries may have internal flaws that lead to fires.
• Improper storage – Storing batteries in high temperatures or exposing them to moisture can increase fire risk.

Can Lithium Batteries Catch Fire When Not in Use?

Yes, lithium ion batteries can catch fire even when not in use. If a damaged or defective battery is stored improperly, it may slowly degrade over time, increasing the risk of a sudden fire. To reduce this risk, always store batteries in a cool, dry place and avoid exposing them to direct sunlight.

Do Lithium Batteries Explode?

Lithium ion battery explosions are rare but can happen if the fire spreads rapidly and causes a buildup of gases inside the battery. This is why proper handling and storage of these batteries are essential.

What To Do If A Lithium Battery Catches Fire

Unlike traditional fires, lithium ion battery fires require special handling. If a lithium battery fire occurs:

1. Do not use water – Water can react with lithium and worsen the fire.
2. Use a Class D fire extinguisher – These are designed for combustible metal fires, including lithium battery fires.
3. Use a dry chemical or lithium battery fire extinguisher – Certain extinguishing agents, like lithium-specific fire extinguishers, can help smother the flames.
4. Remove the heat source – If possible, move surrounding materials away to prevent the fire from spreading.
5. Evacuate and call emergency services – If the fire is uncontrollable, prioritize safety and contact professionals.

Preventing Lithium Ion Battery Fires

Prevention is key when handling lithium ion batteries. Follow these best practices:

• Store batteries properly – Keep them in a cool, dry place away from flammable materials.
• Avoid overcharging – Use the correct charger and unplug once fully charged.
• Inspect for damage – Dispose of swollen, punctured, or defective batteries safely.
• Use approved storage containers – Fireproof battery storage cases can help minimize risks.

Don’t Let Lithium Ion Battery Fires Catch You Off Guard

Lithium ion battery fires are becoming more frequent—and more dangerous. Whether you’re managing a warehouse full of electronics or simply charging devices at home, knowing how to handle these fires is crucial.

We’ve covered the why, the how, and most importantly, what you can do about it. With the right knowledge and the right fire safety tools—like lithium battery fire extinguishers—you can take control before disaster strikes.

B&C Fire Safety is here to help you stay ahead of the risk. From custom fire protection solutions to expert advice, we’ll make sure you’re prepared for anything. Contact us today to learn more about keeping your property safe from lithium-ion battery fires.