Browse
Log in / Register
Share
An 11-year-old boy died and four relatives were left in critical condition after a lithium-ion battery on an electric bike caught fire inside their apartment in the NYCHA Patterson Houses in Mott Haven just before 1 a.m. Wednesday, April 22. This report was updated April 26, 2026.
FDNY units reached the 11th-floor apartment within four minutes of the 911 call, fire officials said. Despite the quick response, the fire had already consumed the kitchen and sent toxic smoke through the rest of the home. The electric bike was in the kitchen, parked directly in front of the apartment’s main exit. That placement cut off the fastest escape route for the family.
Mayor Zohran Mamdani said no other apartments in the building needed to be evacuated. The fire was contained to the unit, but the damage was already done.
Officials said the child could not be saved. Two teenagers and two adults from the same household were critically injured, suffering burns and smoke inhalation. All four were taken to area hospitals and required intubation.
The cause, according to FDNY Commissioner Lillian Bonsignore, was the lithium-ion battery attached to the e-bike. Lithium-ion cells pack a large amount of energy into a small casing, and when they fail, they can ignite with little warning. The flames themselves are dangerous, but so is the thick black smoke that fills a room within seconds.
Firefighters found the bike in the kitchen with the battery still near the doorway. The family had little room to move past it. In a small apartment, a doorway blocked by a charging bike can turn a survivable fire into a deadly one.
Bonsignore used the Wednesday press conference to lay out grim statistics. So far this year, lithium-ion batteries have sparked 401 fires across New York City, injuring 74 people and killing six. By comparison, the FDNY reported 292 such fires, 51 injuries and one death for all of last year.
The rise is especially visible in places like the Bronx, where e-bikes have become a workhorse for delivery couriers and residents who need an affordable way to get around. Many of those bikes are stored and charged inside apartments, often because there is no secure outdoor space.
City officials said the death of the 11-year-old is a stark reminder that these devices are not just a convenience. When paired with a damaged battery, an off-brand charger, or a charging spot near an exit, they can become a lethal hazard.
NYCHA CEO Lisa Bova-Hiatt said the housing authority’s current policy allows residents to charge one e-bike inside their apartment. The conditions are specific: the bike must be kept away from exits, and an adult has to be awake and present while charging is happening.
The policy was created to balance tenant safety with the reality that many NYCHA residents rely on e-bikes for work and daily errands. But Wednesday’s fire put that policy under fresh scrutiny. Officials did not say whether the family was following the rule at the time of the fire, and they did not announce an immediate policy change.
Bova-Hiatt and other officials urged residents to keep devices out of hallways and stairwells, which are shared escape routes. An e-bike blocking a private apartment door can also be deadly, as this case showed.
At the press conference, Mamdani, Bonsignore and Bova-Hiatt pushed a short list of safety steps: use certified batteries and chargers, keep e-bikes clear of exits, never charge while asleep, unplug once the battery is full, and store the device outside living spaces when possible.
They also warned against using replacement batteries or chargers that have not been tested by an accredited lab. Counterfeit and aftermarket lithium-ion cells are a known problem, and officials said they are disproportionately involved in serious fires.
Fire officials added that batteries sometimes send warning signs before failing. Swelling, unusual heat, hissing sounds, leaking fluid or a strong chemical smell are all red flags. Anyone who sees those signs should stop using the battery immediately and move the device away from the apartment if it is safe to do so.
Fire officials have described the failure process as thermal runaway. A damaged cell can overheat, which triggers the adjacent cell, and the battery begins releasing explosive gases and intense heat. Within seconds, a small battery can produce flames that are difficult to extinguish with a standard home extinguisher.
These fires also release toxic gas that can overwhelm a sleeping person before they even wake up. That is why fire safety experts stress keeping charging bikes away from bedrooms and exits. It is also why charging overnight, while everyone is unconscious, is especially dangerous.
In this case, the apartment’s exit was blocked by the burning bike itself. Even if someone did wake up, the route to the door was not clear. That detail is likely to become a central part of the city’s broader safety messaging.
Mott Haven is a South Bronx neighborhood where a large share of residents live in public housing. For many of those families, an e-bike is not a luxury. It is the tool that gets them to delivery shifts, job sites or school. The challenge for city agencies is to preserve that utility without accepting the kind of tragedy that happened this week.
At least for now, officials are leaning heavily on public education and clearer charging rules. Mamdani said the city needs to do more to make sure residents know how to spot unsafe batteries and what to do before a fire starts.
The investigation is still open. Additional details about how the battery ignited and whether the charger or battery was certified may not be known for days. The medical examiner will also determine the official cause of the boy’s death.
For the family, the loss is complete. For the broader community, the fire is another painful example of how quickly an everyday device can turn deadly when it fails inside a small apartment. City officials said future announcements about NYCHA charging rules could follow once the investigation provides more clarity.
