Can You Put Out A Lithium Battery Fire With Water

The short answer is no — you should not use water to extinguish a lithium battery fire.
Instead, you should understand why these fires occur, how they behave, and which methods are truly safe.
At Jiangmen Hongli Energy Co., Ltd., we focus on the design of stable, non-rechargeable 3V lithium batteries that are built with safety at the core — minimizing the risk of combustion or explosion.

1. Why Lithium Batteries Can Catch Fire

Lithium batteries store a large amount of energy in a compact size. When damaged or misused, this energy can release uncontrollably, causing a thermal runaway — a rapid increase in temperature and pressure that may lead to ignition.

Common causes include:

• Overcharging or charging the wrong type of battery

• Short circuits caused by damaged casings or internal faults

• Exposure to fire or high heat (above 100°C)

• Crushing, puncturing, or deforming the cell body

• Poor manufacturing or contamination inside the cell

While Hongli Energy’s 3V primary lithium batteries are designed for excellent stability, improper handling of any lithium cell can trigger dangerous reactions.

2. Why You Should Not Use Water on a Lithium Battery Fire

When lithium reacts with water, it produces hydrogen gas and heat, which can intensify the fire or even cause explosions.

Chemical Reaction Example:

2Li + 2H₂O → 2LiOH + H₂↑ + heat

This means spraying water on a burning lithium battery introduces more fuel (hydrogen) and worsens the situation.

Dangers of Using Water:

• May spread flames to surrounding materials

• Generates toxic gases and explosive hydrogen

• Can cause secondary short circuits if water enters electronics

• Ineffective in cooling metal-lithium combustion

For this reason, water should never be your first response to a lithium battery fire.

3. The Correct Way to Extinguish a Lithium Battery Fire

The safest way to put out a lithium battery fire is to use the correct extinguishing agents and handle the situation carefully.

Step-by-Step Procedure

1. Assess the situation quickly

   • If the fire is small and isolated, proceed with a lithium-rated extinguisher.

   • If it’s large or spreading, evacuate immediately and call emergency services.

2. Use a Class D Fire Extinguisher

   • These are specifically designed for metal fires, including lithium.

   • Class D extinguishers use dry powder (such as graphite, copper, or sodium carbonate) that smothers the flames and absorbs heat.

3. If no Class D extinguisher is available:

   • Use dry sand, limestone powder, or fire blankets to cover the fire.

   • Avoid using water, CO₂, or foam extinguishers — they are ineffective against lithium metal fires.

4. Cool surrounding areas

   • If other materials are burning (like plastic or packaging), you may use water to cool surfaces around, but never directly on the battery.

5. Isolate the batteries

   • Once extinguished, move remaining intact batteries to a safe outdoor area for inspection.

4. How Hongli Energy Minimizes Fire Risks

At Jiangmen Hongli Energy, every lithium cell is designed and tested for maximum safety — ensuring that the risk of thermal runaway or fire is extremely low.

4.1 Stable Chemical System

Our 3V primary lithium batteries (CR123A, CR2, CR14250, CR14505, CR17500, CRP2, 2CR5) use lithium-manganese dioxide (Li/MnO₂) chemistry, which is far more stable than rechargeable lithium-ion systems.
This chemistry significantly reduces flammability under normal use.

4.2 Hermetic Stainless-Steel Sealing

Each cell is laser-welded and pressure-tested, ensuring zero gas leakage or moisture intrusion — two major causes of overheating.

4.3 Safety Mechanisms

• PTC (Positive Temperature Coefficient) device — stops current flow in overcurrent conditions.

• Pressure relief vent — releases internal gas safely if pressure builds up.

• High-purity materials — prevent contamination that might cause internal shorting.

4.4 Rigorous Quality Testing

Every Hongli Energy product undergoes:

• Short-circuit and overheat simulation tests

• High-temperature storage (70°C, 48h)

• Drop and vibration tests

• UN38.3 safety certification for transport stability

These processes ensure our batteries meet the highest global safety standards.

5. What to Do If a Lithium Battery Overheats (Before Fire Starts)

Early action can prevent a fire entirely.
If a lithium battery starts to smoke, swell, or feel hot, follow these steps:

1. Unplug or turn off the device immediately.

2. Move the battery to a non-flammable surface (like concrete or metal).

3. Do not touch it with bare hands or try to puncture it.

4. Use sand or dry powder if it ignites.

5. Let the battery cool completely before disposal.

With Hongli’s primary lithium batteries, these situations are rare, but awareness ensures complete safety.

6. Disposal of Damaged or Burned Lithium Batteries

Damaged lithium batteries must be disposed of properly to prevent future hazards.

• Place the cell in non-metallic containers (e.g., plastic or glass).

• Cover terminals with insulating tape to prevent contact.

• Deliver to an authorized recycling or hazardous waste center.

• Never throw them in regular trash or incinerate.

Hongli Energy promotes environmentally responsible recycling, ensuring that lithium materials are handled safely and sustainably.

7. Why Hongli Energy Lithium Batteries Are Trusted Worldwide

As a National High-Tech Enterprise established in 2015, Jiangmen Hongli Energy Co., Ltd. specializes in safe, high-performance 3V primary lithium batteries.

Our Key Strengths:

• Leak-proof, explosion-resistant structure

• Wide temperature operation: -40°C to +70°C

• 10-year shelf life with less than 1% annual self-discharge

• Full OEM & ODM customization for international clients

• Certifications: CE, RoHS, UN38.3, MSDS compliance

With over 40 million cells produced annually, Hongli Energy is a global supplier trusted for quality, safety, and innovation.

Conclusion

So, can you put out a lithium battery fire with water?
No. Water reacts dangerously with lithium and can make the fire worse.
Instead, always use Class D extinguishers, dry sand, or fire blankets, and handle batteries according to professional safety practices.

With Hongli Energy’s advanced manufacturing, thermal stability, and multi-layer protection, our 3V lithium batteries remain exceptionally safe for long-term use in industrial, commercial, and consumer applications.

To learn more about our fire-safe, high-performance lithium batteries, visit www.honglienergy.com or contact us for OEM/ODM cooperation.