UL Solutions Issues Warning on Model A23 Hand Warmers
The agency warns consumers that these products bear unauthorized safety marks and have not been evaluated.
Updated on Oct. 25, 2026 in Appliances
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UL Solutions has issued a public notice regarding Model A23 hand warmers sold on Amazon due to the presence of unauthorized certification marks. The agency advises that these devices have not undergone safety testing and should be discarded.
Why it matters
Consumers rely on certification marks to identify products that meet rigorous safety standards, and unauthorized labels can mislead users about potential hazards. These hand warmers have not been evaluated by safety experts, posing an unknown risk to users.
The Model A23 hand warmers were manufactured by Shenzhen Little Black Technology Electronics Co., Ltd. and sold via Amazon.com. The product and its packaging display an unauthorized UL Certification Mark, though the device has not undergone formal testing.
The players
UL Solutions
An international safety science company based in Northbrook, Ill., that operates in 110 countries and has 40 years of experience in battery testing.
Shenzhen Little Black Technology Electronics Co., Ltd.
The Shenzhen-based manufacturer responsible for the production of the Model A23 hand warmers.
Amazon.com
A global e-commerce marketplace that served as the retail platform for the affected hand warmers.
The details
The safety agency issued public notice 26PN-0213 to alert shoppers that the manufacturer improperly applied certification marks to the hardware. Officials recommend disposing of the units according to standard protocols for handling lithium-ion battery waste.
Timeline
UL Solutions issued the public safety notice on October 25, 2026.
Culture Shift
This incident highlights a growing tension between global e-commerce marketplaces and the integrity of product safety certifications. It underscores a shift where unauthorized manufacturing practices undermine long-standing safety standards relied upon by international consumers.
If you purchased these hand warmers, you should immediately stop using them to avoid potential battery-related hazards. Dispose of the devices following local hazardous waste guidelines for lithium-ion batteries rather than putting them in standard trash.
The takeaway
Always verify safety markings directly on the manufacturer or certification website if you have doubts about a product's origin. Checking for official compliance can prevent the use of devices that lack necessary safety testing.
Further reading
For more information on product safety and regulatory guidance, visit the Appliances section.
Source note: This article includes information reported by La Opinión Digital.
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