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  • Writer's pictureTim Spears

Fire Safety Alert: Lessons from Harold Hill

In a recent incident in Harold Hill, a catastrophic fire was sparked by the failure of lithium batteries in a converted e-bike. This devastating event, which led to significant property damage and hospitalizations due to smoke inhalation, underscores the critical importance of fire prevention and highlights the hazards of using aftermarket lithium-ion battery equipment that may not meet safety standards.

The London Fire Brigade emphasizes the risks associated with converting traditional bikes into e-bikes using DIY kits purchased online. These modifications, often involving second-hand or non-regulated parts, can significantly elevate the risk of fire. This incident serves as a stark reminder that the convenience offered by e-bikes and powered mobility devices must be balanced with stringent safety measures to protect our communities. (Time 107.5 fm, 2024)

Lithium-Ion Batteries: Powering Mobility, Posing Risks

At the heart of this concern are lithium-ion batteries, celebrated for their efficiency and power, driving the revolution in personal mobility with electric bikes and scooters. Yet, their potential to overheat, catch fire, or even explode when damaged or improperly handled poses a significant risk. Research from the Fire Safety Research Institute highlights the violent and rapid nature of fires stemming from these batteries, challenging traditional fire response and safety measures​​. (Weinschenk, 2023)

Steering Towards Safety: Preventative Measures and Best Practices

In light of these risks, it's crucial to prioritize safety and prevention. Key recommendations include:

  • Choosing Certified Products: Opt for devices and batteries certified by recognized testing laboratories.

  • Handling with Care: Follow manufacturer instructions, use provided chargers, and avoid extreme temperatures or modifications to the battery​​. (Fire Safety Research Institute, 2024)

  • Alertness to Warning Signs: Heed any signs of damage or unusual behavior in battery-powered devices to prevent escalation​​. (Fire Safety Research Institute, 2024)

Your Role in Fire Safety

In our quest for modern conveniences, we must not overlook the responsibilities that accompany them. By adhering to safety guidelines and spreading awareness, we contribute to a safer community. Encourage discussions on battery safety within your circles. What experiences or concerns do you have regarding lithium-ion batteries in your powered mobility devices?

Fostering an Informed Community

The tale of the Harold Hill fire serves as a compelling call to action for all of us in the building and fire safety profession. By understanding the risks associated with lithium-ion batteries and adopting comprehensive safety measures, we can mitigate these hidden dangers. Together, we can foster a well-informed community prepared to embrace the benefits of powered mobility without compromising on safety.


Fire Safety Research Institute. (2024). Learn about lithium-ion battery powered devices. Underwriters Laboratories Inc.

Time 107.5 fm. (2024). Harold Hill house fire caused by battery failure in converted e-bike. [Article]. Retrieved from

Weinschenk, C. (2023, August 7). At the Core: What Firefighters Should Know About E-scooter Battery Fires. Firehouse.


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