Apple Battery Overheating: What the Official Records Say

If Your Device Got Too Hot: What Battery Overheating Is and How It Can Happen

A lithium-ion battery stores a large amount of energy in a small space, and that energy turns into heat when something goes wrong inside a cell. Overheating means the battery is producing or holding more heat than it is built to handle.

The most serious form is thermal runaway: a self-reinforcing cycle of heat buildup inside a battery cell, where rising heat drives reactions that make still more heat, which can lead to fire or explosion. Once that cycle starts in one cell, it can spread to the cells next to it.

One cause the federal records name directly is an internal short circuit, where current flows inside the cell along a path it was never meant to take. Two of the CPSC recall notices discussed below give exactly that reason, stating that "an internal short can cause the battery cells to overheat."

Most rechargeable devices also have a battery management system: the electronic system that monitors and controls a battery's charge, temperature and discharge. It is meant to keep the battery inside safe limits.

For someone who was burned or lost property, how the battery failed is not an abstract question: the cause is what later separates a product problem from an accident. Overheating can occur while a device is charging, in use or sitting idle, and people often think back to which it was, since that timing often matters later.

Is Your Battery Covered? What the CPSC Recall Notices Say About Specific Apple Products

Each notice below is described only as its own CPSC page states it.

A recall is a safety action that removes products from use or offers a remedy, such as a replacement. Federal law sets out what a recall notice ordered by the Commission generally contains. Under 15 U.S.C. § 2064, that content includes a description of the product, the number of units, a description of the hazard, any injuries or deaths associated with the product, and the remedy available to a consumer. That structure is why the notices below read the way they do.

CPSC recall 06-245 (August 24, 2006). The CPSC notice titled "Apple Announces Recall of Batteries Used in Previous iBook and PowerBook Computers Due To Fire Hazard" states that Apple Computer Inc. was "voluntarily recalling about 1.1 million battery packs," described as "rechargeable, lithium-ion batteries with cells manufactured by Sony for certain previous iBook G4 and PowerBook G4 notebook computers only." Its hazard statement reads: "These lithium-ion batteries can overheat, posing a fire hazard to consumers." The notice lists battery models A1061, A1079, A1078 and A1148 within stated serial-number ranges, for the 12-inch iBook G4, 12-inch PowerBook G4 and 15-inch PowerBook G4, and states that "No other Apple notebook computers are involved in this recall." It reports that "Apple has received nine reports of batteries overheating, including two reports of minor burns from handling overheated computers and other reports of minor property damage. No serious injuries were reported." The remedy listed is a replacement battery, free of charge.

CPSC recall 05-179 (May 20, 2005). The CPSC notice titled "CPSC, Apple Announce Recall of iBook and PowerBook Computer Batteries" covers "about 128,000 units (in the United States)" of batteries with model numbers A1061, A1078 and A1079 and serial numbers beginning HQ441 through HQ507 or 3X446 through 3X510. Its hazard statement reads: "An internal short can cause the battery cells to overheat, posing a fire hazard to consumers." It names LG Chem Ltd. as the battery manufacturer and states that "Apple has received six reports worldwide of batteries overheating, including two reports in the United States." It states that "No other PowerBook or iBook batteries are involved in this recall."

CPSC recall 04-201 (August 19, 2004). The CPSC notice titled "CPSC, Apple Announce Recall of PowerBook Computer Batteries" covers "about 28,000 rechargeable batteries used in 15-inch PowerBook G4 computers," model A1045, with serial numbers beginning HQ404 through HQ408 and cells "manufactured during the last week of December 2003 only." Its hazard statement reads: "An internal short can cause the battery cells to overheat, posing a fire hazard to consumers." It states that "Apple has received four reports of batteries overheating, though no injuries have been reported."

Each notice covers only the units it names. None of them describes Apple products generally, or any phone, tablet or later computer. A recall is not a finding that the manufacturer is liable, and a reported incident in a notice does not establish what caused any particular injury.

In practice, a battery whose model and serial number fall inside a listed range is the subject of a public record that the government and the company identified a hazard in it; a battery outside those ranges is not addressed by the notice either way. Comparing the battery label with the ranges above is often the first thing people check. The site keeps similar records for other brands, such as its Anker battery recall page and its INIU power bank recall page.

What People in This Situation Usually Gather

After a battery overheats and someone is hurt, the first days are usually about treatment, a damaged home and getting through the week, not paperwork. Later, a few kinds of records tend to come up again and again.

For an injured person, these usually include the medical records that document the injury and its treatment, and photographs and video of the device, the damaged area and the injury, which show the scene before it changed.

The device or battery itself, where it still exists, is often the most important single item, because model and serial numbers are how a recall notice identifies the units it covers. The 2006 notice, for example, tells consumers that the numbers are "labeled on the bottom of the unit." If the device is discarded, that link to a recall record can be lost.

Purchase records, receipts or an online order history can show when and where a device or a replacement battery came from. Fire department, police or other incident reports, if any were made, record what responders saw. The names and contact information of witnesses can also matter.

Records made close to the event are often the clearest account of it. None of this is a checklist that decides a claim; which items are relevant, and how much weight they carry, depends on the device, the battery, its history and how the event unfolded.

Who Could Be Held Responsible If You Were Burned by a Battery

Product liability is the area of law that asks whether a product had a defect that caused the harm. It looks at the people and businesses in that product's chain, by their role, rather than at a single company.

Claims of this kind usually rest on one of three kinds of defect. A design defect is a flaw in the product's original design that makes it unreasonably dangerous, so every unit built to that design carries the risk. A manufacturing defect is a flaw introduced during production that makes a specific unit deviate from its intended design. Failure to warn is the absence of adequate instructions or warnings about a product's known risks. A design claim points to the whole product line, while a manufacturing claim points to the specific unit that failed, which is one reason the device itself matters.

Federal safety regulations describe defects in a similar way for a different purpose. Under 16 C.F.R. § 1115.4, which tells companies when they must report to the Commission, "a defect is a fault, flaw, or irregularity that causes weakness, failure, or inadequacy in form or function," and it may come from a manufacturing error, from the design and materials, or from a product's "contents, construction, finish, packaging, warnings, and/or instructions." That regulation governs reporting duties; a court deciding an injury claim applies its own state's law.

The roles that may bear responsibility, depending on the facts, include a manufacturer of the device or the battery cells, an importer, a seller and a repairer who replaced or altered a battery. Federal law gives several of these roles a duty to report. Under 15 U.S.C. § 2064, every manufacturer, distributor and retailer that obtains information reasonably supporting the conclusion that a product contains a defect that could create a substantial product hazard, or creates an unreasonable risk of serious injury or death, generally must inform the Commission, unless it knows the Commission has already been adequately informed.

An injured person's claim typically has to show four things: a duty, a defect, causation (proof that the defect actually caused the harm) and damages. Being hurt does not by itself prove the battery was defective, and showing a defect does not by itself prove it caused a particular injury. In practice, the questions that sort this out are whether the battery was original or a replacement, who sold or installed it, and whether anyone repaired the device; a conversation with an attorney can help identify which roles and which defect theory the facts point to.

Which State's Rules Apply to Your Battery Injury Claim

Most battery injury claims are decided under state law, not federal law. The place where the fire or burn happened, and sometimes where the product was bought, can change the rules that apply.

A statute of limitations is the period within which a legal claim must be filed, after which the right to sue is generally lost, so an otherwise sound claim can be barred if filed late. These periods differ from state to state, as do the rules on when the period starts and what can pause it. Some states reduce what an injured person may recover by that person's own share of fault, and others treat that differently. Rules on what losses may be recovered also vary.

If a family member died in a battery fire, the family's right to bring a claim comes from a state wrongful-death law, which covers a death resulting from another party's wrongful act or negligence. Who may bring it, what it may cover and when it must be filed are set by that state's law.

No single state's rule is the rule everywhere. The site's California lithium battery injury page covers that state's law on its own terms, and it says nothing about anywhere else.

This is often where the questions become specific: which state's law applies, and what deadline may matter. Those questions can be discussed with our attorney through a case evaluation request.