E-Bike Battery Fires Surge Across UK, Prompting Urgent Safety Warnings
Safety experts are sounding alarm bells over a dramatic increase in dangerous e-bike battery fires across the United Kingdom, with London experiencing the highest concentration of incidents. New data reveals that poorly manufactured batteries and chargers sold through online marketplaces are creating serious fire hazards in homes nationwide.
Alarming Statistics Reveal Growing Danger
According to figures collected by the Press Association, there were 432 fires linked to e-bikes across the UK last year, representing a significant increase from 313 incidents recorded the previous year. This translates to more than one e-bike fire occurring on average every single day, with London Fire Brigade reporting the highest numbers at 171 e-bike fires and 35 e-scooter fires in 2025 alone.
Nick Bailey from the Battery IQ group, which monitors battery safety, explained the primary danger: "The bikes and scooters involved in fires are always cut-price products sold through online marketplaces with lax quality control. There's also a growing black market in DIY and counterfeit batteries, particularly for delivery riders, built using battery cells reclaimed from used disposable vapes."
Tragic Human Cost of Battery Fires
The consequences of these fires have been devastating. Sofia Duarte, 21, lost her life in a southeast London flat on Old Kent Road when two e-bikes exploded while charging in the corridor, just two weeks before her 22nd birthday. The fire broke out after she finished working at a nightclub on New Year's Eve, trapping her inside while her boyfriend managed to escape by jumping from a window.
Last summer, 30-year-old Eden Abera Siem became the fourth person killed in a battery fire last year, dying in hospital after being rescued from a blaze believed to be caused by a failed bike battery charger. These fires spread with terrifying speed, releasing toxic smoke that can turn homes into death traps within seconds.
Alda Simoes, a family friend of Sofia Duarte, described the ongoing trauma: "Her mum is 'in pieces' and continues to struggle two years after the fire. It was two batteries on bikes parked at the exit, so it was double the fumes, double everything." She warned that "an e-bike fire doesn't kill just one person, it kills the entire family as well."
Dangerous Online Marketplaces and Conversion Kits
Experts identify several key risk factors contributing to the surge in battery fires. Low-quality batteries and chargers sold through under-regulated online marketplaces often lack rigorous safety standards. Additionally, dangerous conversion kits that transform regular pedal bikes into e-bikes for as little as £300—compared to £2,000 for properly manufactured e-bikes—pose significant hazards.
Alda Simoes offered a stark comparison: "It is like if you buy a charger for an iPhone for £3. You charge your phone and it just heats and heats, because it's not good." She accused lawmakers of having "blood on their hands" if more people die before regulations change, adding: "There has to be a change so her death is not in vain. People will remember that her death changed the law."
Regional Fire Statistics Highlight Widespread Problem
The danger extends far beyond London, with fire services across the UK reporting significant incidents:
- Nottinghamshire Fire and Rescue Service: 30 e-bike fires, 6 e-scooter fires
- Greater Manchester Fire and Rescue Service: 29 e-bike fires, 13 e-scooter fires
- Avon Fire and Rescue Service: 19 e-bike fires, 10 e-scooter fires
- Surrey Fire and Rescue Service: 15 e-bike fires, 5 e-scooter fires
- Lancashire Fire and Rescue Service: 15 e-bike fires, 2 e-scooter fires
- Leicestershire Fire and Rescue Service: 12 e-bike fires, 2 e-scooter fires
Calls for Regulatory Action and Safety Measures
Lesley Rudd, chief executive of the Electrical Safety First charity, described unsafe batteries as "a runaway train that needs to be stopped." She emphasized: "Poorly made batteries and accessories, often sold via under-regulated online marketplaces, are of huge concern, and are a major route through which dangerous devices are entering people's homes. Without strong and enforceable changes, lives are at serious risk and further loss of life is, sadly, inevitable."
The government is currently addressing these concerns through the Product Safety Bill, which is progressing through Parliament with measures designed to crack down on unscrupulous online marketplaces. Safety experts recommend that consumers avoid suspiciously cheap batteries and conversion kits, purchase only from reputable manufacturers, and never leave batteries charging unattended.
Nick Bailey offered a personal safety perspective: "I wouldn't keep a battery in my home without continuous monitoring—regardless of what the manufacturer's sticker says." As e-bike popularity continues to grow, these warnings take on increasing urgency for riders, families, and policymakers across the United Kingdom.
