Tesla Battery Fires: What They Are, How They Happen, and What the Law Asks

Why a Fire That Starts Inside a Home Battery Behaves Differently

Tesla, Inc., of Reno, Nevada, is the manufacturer named in the U.S. Consumer Product Safety Commission recall notice for the Powerwall 2, and that notice lists the product as manufactured in the United States. The Powerwall 2 runs on lithium-ion battery cells, and the CPSC notice places the hazard in those cells.

A fire in a lithium-ion battery often starts with thermal runaway: a self-feeding chain reaction inside a cell in which heat produces more heat, releasing flammable gases and potentially causing the cell to vent, smoke or ignite. This is a matter of battery chemistry, not of any one brand. Our page on lithium battery thermal runaway explains the reaction in more depth.

Most rechargeable battery systems also rely on a battery management system, the electronics that monitor each cell's voltage, temperature and current to keep the battery within safe limits. When a fire happens, the questions that follow usually concern the cells, the electronics that watched over them, and the conditions the unit was in.

For a family after a fire, this matters because the cause of a battery fire is rarely visible from the outside. The burned unit, the installation and the records around it are usually what an investigator, an insurer or a court later works from. If the unit or its remains are still in your home, they may be the most important evidence of what happened inside the battery.

Tesla Products That Use Lithium-Ion Battery Packs

The CPSC notice describes the recalled product this way: "certain Tesla Powerwall 2 units, fully-integrated AC battery systems used for energy storage for self-consumption, time-based control, and backup power." In plain terms, it is a home energy storage unit that holds electricity for a household to use later, including as backup power.

The notice gives a way to identify the product: "Model number 'Powerwall 2' is printed on the nameplate label on the side of the unit." It also states that only certain Powerwall 2 units are included, so the model name alone does not tell an owner whether a particular unit is part of the recall.

The product descriptions on this page come from that official notice. This page does not describe Tesla's market position, sales or reputation, and nothing here suggests that any Tesla product is defective or has injured anyone.

The product category also matters. A home storage battery, a vehicle and a small device can be governed by different safety regulators and recall systems, and the record that applies to one does not carry over to another. A home battery is also usually installed by someone, and the notice states the Powerwall 2 was sold through certified Tesla installers, so the installer can be part of the story alongside the manufacturer.

What the 2025 Powerwall 2 Recall Says, and What It Means for Owners

A recall is a safety action in which a manufacturer, working with a federal agency, notifies the public of a product hazard and offers a remedy such as a repair, a replacement or a refund. The official record here is CPSC recall 26-092, "Tesla Recalls Powerwall 2 AC Battery Power Systems Due to Fire and Burn Hazards; Risk of Serious Injury or Death", with a recall date of November 13, 2025.

The CPSC notice states the hazard in these words: "The lithium-ion battery cells in certain Powerwall 2 systems can cause the unit to stop functioning during normal use, which can result in overheating and, in some cases, smoke or flame and can cause death or serious injury due to fire and burn hazards."

The notice records the following:

• The remedy is listed as "Replace."
• About 10,500 units are covered.
• On incidents, it states: "The firm has received 22 reports of overheating, including six reports of smoking and five reports of fire, resulting in minor property damage. No injuries have been reported."
• On the interim step, it states: "Tesla has remotely discharged (or removed energy from the battery of) affected Powerwall 2 systems that are online, to prevent overheating, until the replacement is installed."
• It says owners can confirm that their system is online and check the Tesla App for a notification about whether their unit is included.

The notice states that the units were sold at Tesla.com/powerwall and through certified Tesla installers nationwide from November 2020 through December 2022 for about $8,000.

The incident figures above are reports the firm received, as the notice describes them. Our guide to the lithium battery recall lookup walks through reading a CPSC notice field by field.

Federal law shapes what a notice like this contains. Under 15 U.S.C. § 2064, a notice required under a Commission order generally must include, among other items, a description of the product, the action being taken, the number of units, a description of the hazard, and "the number and a description of any injuries or deaths associated with the product."

If your unit caught fire, whether it was covered by this recall is one fact among several. It can be relevant to an insurer's questions and to later investigation, but it does not answer what caused your fire.

Why the Fire in Your Home May Have Started Inside the Battery

The CPSC notice describes one sequence for the recalled units: cells that "can cause the unit to stop functioning during normal use," which "can result in overheating and, in some cases, smoke or flame." That is the agency's description of the hazard. It is not a statement about what caused any particular fire.

Beyond that record, the general categories that can set off thermal runaway in lithium-ion cells include physical damage to a cell, charging outside safe limits, flaws introduced when a cell was made, a failure of the battery management system, and outside heat. Once a cell overheats, heat can spread to neighboring cells in the same pack. These categories apply to lithium-ion batteries in general, not findings about any Tesla product.

Each possibility points toward different questions and potentially different parties: how the unit was designed and built points toward the manufacturer, how it was installed toward the installer, and how it was used or what else was in the room toward other explanations. Which of these matters, if any, depends on the facts and on what an investigation shows. Sorting through those possibilities is something a conversation with an attorney can help with.

What the Law Needs to Show After a Battery Fire Injures Someone

If you were hurt, product liability is the body of law that may apply: under it, manufacturers, distributors and sellers can be held responsible when a defective product causes injury. It recognizes three broad kinds of defect: a design defect, where the product's design itself presents an unreasonable danger; a manufacturing defect, where a specific unit departs from its intended design; and a failure to warn, where instructions or warnings about a risk are inadequate.

For a homeowner, the distinction shapes the questions asked. A design defect claim looks at the product line as a whole; a manufacturing defect claim looks at whether your particular unit differed from the others. Where a third-party contractor installed the unit, how it was installed can become a separate question from how it was designed or built, which can affect who may be responsible.

The CPSC's own regulation shows how the word "defect" is used in federal safety law, which can help in reading a recall notice. 16 C.F.R. § 1115.4 states that "a defect is a fault, flaw, or irregularity that causes weakness, failure, or inadequacy in form or function," and that "a product may contain a defect even if the product is manufactured exactly in accordance with its design and specifications, if the design presents a risk of injury to the public." It adds that a defect "can also occur in a product's contents, construction, finish, packaging, warnings, and/or instructions." That regulation guides what firms report to the Commission; it is not itself the test a court applies in an injury case.

To succeed, a person generally must show both that a defect existed and that the defect caused the injury. An injury alone establishes neither, and a fire alone does not prove a defect.

In practice, the federal rules and your own claim run on separate tracks. The Consumer Product Safety Act, which begins at 15 U.S.C. § 2051, states its purposes, including "to protect the public against unreasonable risks of injury associated with consumer products." Section 2064 lets the Commission, after an opportunity for a hearing, order a manufacturer, distributor or retailer to repair a product, replace it or refund the purchase price. Injury claims themselves are decided under state law, and the elements, the comparative or contributory fault rules and the damages rules differ from state to state. No single state's rule, California's included, is the rule everywhere. Our overview of a lithium battery injury claim covers the supply-chain questions in more detail.

Why the Statute of Limitations Is the Deadline That Matters Most for Your Situation

A statute of limitations is a law that sets the maximum time after an event within which a lawsuit may be filed. When it runs out, a claim can be barred no matter how strong it might otherwise have been. That is why, for a person recovering from a battery fire, this deadline often carries more weight than any other.

Each state sets its own periods. A wrongful death claim, which surviving family members bring when a person dies because of another party's wrongful act or a defective product, can have its own period, separate from the one for personal injury. When a period starts to run, and what exceptions may pause or extend it, also differ from state to state. Some states also have separate time limits that apply specifically to product claims.

Because of that variation, this national page does not state a period for any state. State-specific pages, such as those for a Texas lithium battery injury or a California lithium battery injury, set out those states' rules from their own statute text.

If you are unsure which state's law applies, perhaps because the unit was bought in one place and the fire happened in another, that is one of the questions a conversation with our attorney can cover. You may want to consider a case evaluation to talk through where and when the fire happened and the dates involved.

Records That Often Matter in a Battery Fire Injury Case

After a battery fire, the records that are often relevant include medical records documenting injuries and treatment; photos and video of the unit, the fire scene and the injuries; the product itself or what remains of it, along with packaging, receipts, installation paperwork or order records; incident reports and fire investigation reports; any notices or messages from the manufacturer, an installer or a retailer about the product; and the names and contact details of witnesses.

Fire investigation reports, whether from a local fire department or an insurance investigator, may record where a fire started and what the investigator believed caused it. Those are records of one person's assessment, not legal findings, and an incident report does not establish what caused an injury. If an insurer has opened a claim, its investigator's view is one assessment among others.

Where a CPSC recall notice covers the product involved, that notice is a public record too. For a Powerwall 2, the notice describes how owners can check, through the Tesla App, whether a unit is included, so any app notification can become part of the paper trail. Installation paperwork can also show who installed the unit, which bears on the installer questions above.

If you were hurt, much of this material may already be scattered across hospital portals, insurance claim files and phone photos. Bringing it together can make it easier to describe what happened, in order, when you talk the situation through, and it gives an attorney what is needed to assess defect and causation.