Sealed Container Defense Shields Retailers from Liability for Latent Defects

The Court of Appeals’ decision in Weaver v. AMV Holdings, LLC reinforces a core principle of North Carolina products‑liability law: downstream retailers and distributors are protected by the sealed container defense when alleged product defects are hidden and undiscoverable.

Background

The plaintiff sustained severe injuries when a battery used in his vaping device experienced a “thermal runaway” event. He asserted claims against entities in the product’s supply chain, including negligence, failure to warn, breach of implied warranties, gross negligence, and punitive damages. The manufacturer of the battery was unknown and not a party. The defendants moved for summary judgment, arguing that the alleged defect was internal and not reasonably discoverable.

The Court’s Analysis

The Court first confirmed that all claims were governed by the Products Liability Act. Under § 99B-2(a), a seller or distributor is not liable where the product was sold in a sealed container or where the seller had no reasonable opportunity to inspect the product in a manner that would have revealed the defect.

On appeal, the plaintiff argues that the sealed container defense did not apply because lithium‑ion cell batteries present known and serious safety risks, and whether the defendants could have discovered such risks should go to the jury. The plaintiff’s expert, however, conceded that the purported defect with the product was internal and detectable only through advanced diagnostic methods.

The Court concluded it would be unreasonable to require retailers or distributors to perform such testing prior to sale.

The plaintiff also argued that the defense was unavailable because the statute does not apply if the manufacturer is insolvent or not subject to North Carolina jurisdiction. The Court held that this language operates as an exception, not an element, of the defense, meaning the plaintiff bears the burden of proving it applies.

Takeaway

Weaver reinforces the strength of the sealed container defense for non-manufacturing sellers and distributors in North Carolina. The decision confirms that liability will not attach for latent manufacturing defects that cannot be discovered through reasonable inspection and clarifies that plaintiffs bear the burden of proving statutory exceptions to the defense.