UL Solutions Inc. released public notice 26PN-0213 on Sep 25, 2026, alerting consumers that rechargeable hand warmers (model A23) sold on Amazon carry UL certification marks that have not been evaluated by the company. The products, packaged with the phrase "Hand Warmers Warm Gift Warm All Winter" and labeled simply as "Hand Warmers" model A23, are manufactured by Shenzhen Little Black Technology Electronics Co., Ltd.
UL Solutions said the unauthorized marks mean the items have not been tested against UL safety standards, and it is unclear whether they comply with any safety requirements. The firm advised consumers to discard the hand warmers using proper lithium‑ion battery disposal methods.
The notice highlights a potential safety risk for buyers of the product on the Amazon marketplace, underscoring the importance of verifying certification authenticity for consumer electronics.
