Alarming Rise in Lithium-Ion Battery Fires
Fire brigades across the United Kingdom responded to lithium-ion battery fires at a rate of one every five hours in 2025, data shows. The Guardian reported that crews handled 1,760 such incidents nationwide last year, marking a 147% rise from 713 fires in 2022. Officials attributed the surge to the growing use of e-bikes and other devices, with fire chiefs urging stronger regulations to curb risks from faulty products.
Data compiled by QBE, a global business insurer, through freedom of information requests revealed the sharp increase. Fire services dealt with 4.8 lithium-ion battery fires per day in 2025, according to the figures cited by The Guardian. E-bikes accounted for nearly one-third of these incidents, with 520 callouts last year compared to 149 in 2022—a 249% jump.
Key Sources and Contributing Factors
AOL reported that e-bikes ranked as the top source of such fires. The Guardian noted that retrofitted or converted e-bikes appeared in a disproportionate number of cases, unlike certified models. This pattern points to issues with quality control and safety standards, particularly for products sold on online marketplaces.
Electric vehicle fires also climbed, rising 133% over the three-year period, The Guardian said. However, the number of electric vehicles on U.K. roads tripled during that time, suggesting the fire rate per vehicle might have declined proportionally. Other devices contributed to the problem, including lithium-ion batteries in items like mobile phones, electric toothbrushes, toys and vapes, The Guardian reported.
Innovation News Network highlighted that electric vehicle fires often last hours rather than minutes, unlike traditional vehicle fires, posing unique challenges for responders.
Regional Hotspots and Impacts
London bore the brunt of the crisis. The London Fire Brigade managed 230 e-bike fires in 2025, accounting for 44% of the national total, according to The Guardian. Five fatalities linked to e-bike fires occurred in the capital over the past three years.
Urban density and easy access to online markets likely fueled the concentration, fire officials suggested. A high-profile incident underscored the broader impacts: A fire in Glasgow in March 2026, believed to have started in a vape shop, destroyed a historic building and forced the two-week closure of Central Station, Scotland's largest rail hub, The Guardian reported.
Fire behavior added to the strain. Innovation News Network stated that electric vehicle fires "can stretch over hours, not minutes," requiring adjusted emergency protocols. This differs from short-lived traditional fires, officials said.
Key statistics from the data include:
- 1,760 total lithium-ion battery fires in 2025 U.K.-wide.
- 520 e-bike fires in 2025, up from 149 in 2022.
- 230 e-bike fires in London in 2025.
- 5 fatalities from e-bike fires in London over three years.
- 133% increase in electric vehicle fires from 2022 to 2025.
Exposing Regulatory Shortfalls
Fire chiefs warned that regulations lag behind the spread of these devices. Spencer Sutcliff, deputy commissioner for prevention at the London Fire Brigade, told The Guardian: "We believe regulation can help improve product safety and reduce the chance of consumers being exposed on online marketplaces to faulty or counterfeit products such as ebike batteries, chargers and conversion kits."
The Guardian quoted officials saying public awareness and government rules have not matched the "ubiquity of this new hazard." Counterfeit items, including batteries and conversion kits, entered the market through online channels, exacerbating risks, according to the reports. The issue extends beyond mobility devices to everyday electronics, officials noted.
Pushing for Safer Futures
Fire services have adapted by developing new training for prolonged fires, though costs remain unclear. QBE's data suggest the trend could worsen without intervention, as device adoption grows.
Officials push for better oversight of online sales to block substandard products. The Guardian indicated that addressing retrofitted e-bikes and counterfeit goods would require coordinated action from regulators and marketplaces. International comparisons were absent from the reports, leaving questions about whether the U.K.'s 147% rise mirrors global patterns. Fire brigades called for root cause studies to pinpoint failures like manufacturing defects or user errors.
This isn't just a spike in fires—it's a glaring failure of oversight that's letting cheap, dangerous knockoffs flood the market. Regulators have dragged their feet for years, and now urban fire services are paying the price with stretched resources and real lives lost. Without swift bans on unverified online sales of batteries and kits, the U.K. will see fatalities double in the next two years; the data screams for action, not more studies. Skeptics might blame user error, but the numbers pin this on lax supply chains—time to hold marketplaces accountable before another Glasgow-scale disaster hits.