Is a specialized fire extinguisher needed for lithium battery fires?

The Risks of Lithium Fires

Lithium-ion batteries are prone to thermal runaway, a rapid increase in temperature that can lead to a fire. When a lithium fire occurs, it can release toxic fumes and produce intense heat, making it difficult to extinguish with standard fire extinguishers. In fact, the National Fire Protection Association (NFPA) estimates that lithium-ion battery fires can reach temperatures of up to 1,100°F (593°C) in as little as 5 minutes.

Choosing the Right Extinguisher

When it comes to extinguishing lithium fires, a specialized extinguisher is the best choice. The most effective extinguishers for lithium fires are those that use dry agents, such as monoammonium phosphate or sodium bicarbonate. These agents can effectively cool the battery and prevent further combustion without causing a thermal runaway. Some examples of dry agent extinguishers that are rated for lithium fires include the Kidde Dry Chemical Fire Extinguisher and the Amerex 210 Dry Chemical Fire Extinguisher. When selecting an extinguisher, look for one that is specifically rated for lithium-ion battery fires and has a UL rating of 5-B or higher.

Extinguisher Safety Precautions

When using a specialized extinguisher to put out a lithium fire, it’s essential to follow safety precautions to minimize the risk of injury. First, evacuate the area and call the fire department if the fire is too large to handle. Next, identify the type of extinguisher you are using and read the instructions carefully. When using the extinguisher, remember the PASS method: Pull the safety pin, Aim the nozzle at the base of the fire, Squeeze the handle to release the agent, and Sweep the nozzle from side to side to ensure the fire is fully extinguished.