For incidents involving lithium-ion batteries, responders should?

• A. Take special precautions due to the risk of explosions and toxic fumes.
• B. Treat as a normal electrical fire with no extra measures.
• C. Only use water without PPE.
• D. Evacuate but not worry about fumes.

Answer: (A)

Lithium-ion battery incidents carry a unique danger because these packs store a lot of energy in a small space. If a cell is damaged or overheated, it can undergo thermal runaway, where heat from one cell drives others to heat up, potentially causing a violent failure, explosion, or rapid venting of flammable electrolyte and toxic gases. That combination of blast risk and hazardous fumes means responders can’t treat it like a normal electrical fire.

Because of that risk, responders must take extra precautions: establish a safe perimeter, keep people away, and, if possible and safe, disconnect the energy source to stop further heating. Use full PPE and breathing protection, since fumes can irritate or injure the eyes, skin, and lungs. Cooling the battery with copious amounts of water over an extended period is key to preventing further thermal runaway and reignition, rather than relying on standard fire suppression alone. Be mindful of the potential for reignition even after it seems extinguished, and vigilantly monitor for signs of heat or new flames. Avoid puncturing or crushing the battery, and minimize ignition sources near the incident.

These factors explain why this situation requires special precautions rather than treating it as a routine electrical fire, or relying on water without protective measures, or evacuating without addressing the fumes.