Investigation records published by the U.S. CPSC indicate that the recalled portable heating devices were linked to thermal runaway incidents, resulting in property fires, burn injuries, and a fatality. Technical audits revealed that during high-heat operation or fast charging, the internal lithium-ion cells experienced thermal runaway due to insufficient thermal isolation barriers and the absence of secondary hardware-level Battery Management System (BMS) cut-off circuits. The CPSC mandated immediate commercial halts and product returns across Amazon, Walmart, and direct retail channels. Regulatory compliance specialists warn small appliance manufacturers that as winter seasonal sourcing peaks, rechargeable heating gadgets must strictly conform to UL 2056 and UL 1642 standards. OEM/ODM factories must integrate dual redundant NTC thermistors and hardware-level overcurrent fuses to prevent port detentions and product liability exposure.