Lithium-Ion Battery Fire Injury Claims

Usually more than one party, and the strongest claim is rarely against the person who owned the bike.

A battery that ignites while charging is a product that failed. That points at the cell maker, the pack assembler, the e-bike brand, the importer, and whoever sold it.

New York City banned the sale, lease, and rental of uncertified e-bikes, e-scooters, and batteries in September 2023, and New York State followed with a statewide certification requirement in 2024.

A device sold into this market after those laws took effect without proper certification is not a gray area. It is a violation of a statute written specifically to stop these fires.

Running alongside that is a premises claim, because building owners who ignored charging conditions, dead smoke alarms, blocked exits, or an illegal repair shop on the ground floor answer for what the fire did.

Call (888) 713-6653 for a free review of your burn or fire injury claim. There is no fee unless we win.

A lithium-ion pack that ignites in normal charging or normal use is behaving in a way no consumer product is supposed to behave. New York recognizes three product liability theories, and battery fire cases frequently support all three at once.

Design Defect

The pack was designed without adequate protection against the failure that occurred. Recurring issues include an absent or inadequate battery management system, no cell-level fusing, no thermal cutoff, cells packed without separation or venting, and a charger that continues delivering current past full charge. The question is whether a safer alternative design was feasible, and in this category it almost always was, because certified products with those protections were on the same market at the same time.

Manufacturing Defect

The design was adequate and this unit was not. Contaminated or misaligned cells, a separator flaw, poor welds, water intrusion through a bad seal, or a refurbished pack built from salvaged cells of mismatched age and capacity. Rebuilt and aftermarket packs assembled from used cells are a persistent source of these fires, and the rebuilder is a defendant.

Failure to Warn

The product came with no adequate instruction about charging duration, charger compatibility, storage temperature, damage inspection, or what to do when a pack swells, smells, or gets hot. Many of the devices in these cases arrived with a photocopied insert or nothing at all.

The defendants are the parties in the chain of distribution: the cell manufacturer, the pack assembler, the device brand, the importer of record, the distributor, and the retail seller, including online marketplaces depending on their role in the transaction. Many manufacturers are overseas, which is exactly why the importer and the seller matter, and why identifying the full chain early is the work that determines whether a claim reaches real coverage.

New York did not respond to this hazard with guidance. It responded with prohibitions, and those prohibitions are what turn a general defect argument into a violation of a written standard.

What New York City Banned in 2023

Local Law 39 of 2023 took effect on September 16, 2023, and prohibits the sale, lease, rental, or distribution of powered bicycles, powered mobility devices, and storage batteries for them unless the electrical systems and batteries have been certified by an accredited testing laboratory. The referenced standards are UL 2849 for e-bike electrical systems, UL 2272 for personal e-mobility devices, and UL 2271 for light electric vehicle batteries.

Enforcement has been real rather than nominal. The FDNY Lithium-Ion Battery Task Force inspected 585 e-bike shops in 2024, a 25% increase over the prior year, and issued 426 FDNY summonses, 138 violation orders, 32 criminal summonses, and seven vacate orders alongside the Department of Buildings.

What New York State Added in 2024

On July 11, 2024, the Governor signed a legislative package prohibiting the manufacture, distribution, assembly, reconditioning, or sale of lithium-ion batteries intended for e-bikes, limited use motorcycles, and other micromobility devices statewide unless certified to UL 2849, UL 2271, UL 2272, EN 15194, or another standard approved by the Department of State.^[2] Certified batteries must carry the certification or the testing laboratory's mark on the packaging or the product, and violations carry civil penalties.

What a Certification Mark Proves, and What It Does Not

A genuine mark shows the product line passed abuse testing at an accredited laboratory. It does not prove this particular unit was built to that specification, and counterfeit marks are common on imported packs. So a certification mark is a starting point in the investigation rather than a defense, and the absence of one on a device sold in New York after these dates is close to a self-proving liability fact.

When a lithium-ion cell fails, it does not burn the way ordinary materials burn. It undergoes thermal runaway: an internal reaction that generates its own heat and its own oxygen, propagating cell to cell in seconds. The pack vents flammable gas, ignites explosively, and produces flame temperatures a residential smoke detector's warning interval was never designed for.

• There is almost no warning. Occupants describe a hiss or a pop and then flame across a room, with no smoldering phase.
• Water does not stop it, and it reignites. The reaction sustains itself, and packs that appear extinguished can re-enter runaway hours later.
• It happens where people sleep. Devices are charged in hallways, living rooms, and bedrooms, frequently overnight, and often between the occupants and the only exit.
• The gases are toxic. Hydrogen fluoride and other combustion products cause airway injury independent of any burn.

That mechanism is also why the blame aimed at the rider or the delivery worker is misplaced. Someone charging a device in their own apartment, the way the manufacturer said to, is not the cause of a runaway event in a pack built without the protections a certified pack has.

Everything in a product case runs through the physical evidence, and in a fire the physical evidence is routinely thrown out by people trying to be helpful.

• The battery pack and cells. Even destroyed, a pack can be examined for cell chemistry, construction, protection circuitry, and the origin of the failure. Do not let anyone discard it.
• The charger and cord. Frequently the defect, and frequently a mismatched aftermarket unit.
• The device itself. Frame, controller, and wiring, plus any labels or markings identifying the brand, model, and importer.
• Purchase records. Receipts, order confirmations, marketplace listings, screenshots, and shop paperwork, which establish who sold it and when.
• Packaging and inserts. Where the certification marks and the warnings would appear, and their absence is evidence in itself.
• Repair and rebuild history. Who serviced the pack, who replaced cells, and where.
• The FDNY fire marshal's file. Origin and cause determination, scene photographs, and the physical evidence the Department retained.

A written preservation demand has to go out immediately, directed at the building owner, the property manager, the carrier, and any restoration contractor.

The single most valuable object in a battery fire case weighs about four pounds and looks like garbage. Insurers and landlords both move fast after a fire, and neither of them is preserving evidence for you. We have seen buildings clear a fire scene inside 72 hours. The remains of the battery, charger, and device may hold the answers to how the fire started and whether a manufacturing defect, charging failure, or electrical malfunction caused it. The first and most important step in building a successful product liability case is to preserve that evidence.

The people most exposed to this hazard in New York City have been delivery riders, who need long range on a shift, who buy on price, and who have been the most likely to end up with a rebuilt or uncertified pack charging in a shared apartment overnight. Four things follow from that, and all four cut in favor of the injured person.

• The economics were designed by someone else. A rider buying the cheapest pack that lasts a shift is responding to conditions set by an app company, a shop, and a market flooded with uncertified imports. That context is admissible and it is persuasive.
• A rebuilt pack has a builder. The shop that assembled it from salvaged cells is a manufacturer for liability purposes, and its work is traceable through service records and cell markings.
• Immigration status is not a bar. A person's status does not affect the right to bring an injury claim in New York, and fear on that point has kept real cases from being filed.
• A workplace injury does not end the analysis. A rider hurt while working may have a comp or a benefits path and still have a product claim against the manufacturer and seller, which is a separate case against a separate party. Our page on e-bike and delivery worker accident claims covers how riders are classified and what that changes.

The fires that killed 18 New Yorkers in 2023 mostly happened in apartments where nobody involved thought they had a lawsuit. Almost all of them did.

New York gives three years from the date of injury to bring a personal injury claim under CPLR § 214, and two years from the date of death for a wrongful death action under EPTL § 5-4.1.

Applied to this hazard as of July 2026, that means fires from mid-2023 forward are generally still within the personal injury window, and fires from 2022 and early 2023 generally are not for an adult claimant. It is worth having the dates checked rather than assumed, because several things change the answer.

• A child who was injured. CPLR § 208 tolls the deadline during infancy for an ordinary injury claim, so a child hurt in a 2022 fire may still have years remaining. The ten-year ceiling in that statute applies to medical and dental malpractice, not to a product or premises claim.
• Wrongful death accrual. The two-year clock runs from the date of death rather than the date of the fire, which matters where someone survived for a period afterward.
• A public defendant. If the fire occurred in a NYCHA building, a notice of claim requirement applies on a 90-day schedule that has nothing to do with the three years.
• Related criminal proceedings. In a wrongful death case, EPTL § 5-4.1 provides additional time where a related criminal action was pending.

A five-minute conversation resolves this. Our page on New York filing deadlines lays out the full set, and the honest answer on a specific fire date is worth getting before assuming the door is closed.

A battery fire case is a product case, a premises case, and a catastrophic injury case at the same time, and it has to be worked as all three from the first week.

• An office in the courthouse district. We work from 305 Broadway in Lower Manhattan, minutes from the courts where these cases are tried.
• Preservation before anything else. Written demands to the owner, the manager, the carrier, and any restoration contractor before the debris is hauled, because the pack is the case.
• The full distribution chain identified. Cell maker, assembler, brand, importer, distributor, seller, and rebuild shop, so the claim reaches coverage that actually exists.
• Both tracks worked at once. The product claim and the building's fire safety failures, because the two answer different questions and produce different defendants.
• A record across 40,000 cases. Over $100 million recovered for injured people, a 98% recovery rate, free consultations 24/7, and no fee unless we win.

Selective case acceptance by design. We are not a settlement mill. Every catastrophic injury case deserves a legal team that knows it inside and out. Deep experience and reputation only matters if it is applied to your case. If we take your case, we're fully invested in winning. Being selective allows us to give each case the attention, resources, and commitment it deserves.