Heated Insole Warning Issued After Reports of Amazon Products Igniting

Defective battery-powered insoles have been linked to multiple reports of severe burn injuries.

Federal safety officials are urging consumers to immediately stop using certain Junsyoung heated insoles sold on Amazon, warning that the internal lithium-ion battery may overheat and catch on fire during use.

The U.S. Consumer Product Safety Commission (CPSC) announced the Junsyoung heated insole warning on March 5, following at least four reports of the products igniting, catching fire or causing other thermal incidents that resulted in burn injuries, including second and third degree burns requiring skin grafts.

Heated insoles are wearable warming devices designed to generate heat inside shoes or boots during cold weather. The products typically contain thin heating elements embedded in the sole that are powered by small rechargeable lithium-ion batteries, allowing users to maintain warmth while working, hiking or spending extended time outdoors in freezing temperatures.

However, because the devices operate inside enclosed footwear and remain in direct contact with the bottom of a user’s foot, any battery malfunction or overheating event can quickly lead to serious injuries before the wearer has time to remove the shoe.

The newly reported incidents are not the first safety concerns involving battery powered heated insoles. Similar products sold through Amazon and other online retailers have previously been linked to burn injuries, prompting safety warnings, product recalls, and a growing number of heated insole lawsuits filed by consumers who claim defective designs caused serious burns to their feet.

According to the warning, officials are instructing consumers to stop using Junsyoung heated insoles that were manufactured in China and sold on Amazon from July 2023 through March 2024. 

The insoles are black and red and contain a lithium ion battery in the heel area that is operated by a remote. The brand name “Junsyoung” or the seller name “JAMRIC” can be found on the purchase receipt.

Despite the reports of fires and severe burn injuries, the CPSC indicates that the manufacturer has been unresponsive to requests for additional information and has failed to respond to the agency’s request to issue a formal recall.

To prevent additional injuries, the CPSC is urging consumers to immediately dispose of the defective heated insoles and follow local household hazardous waste disposal procedures, warning that the lithium-ion batteries should not be thrown in the trash, placed in standard recycling bins, or dropped in retail battery recycling boxes due to the increased fire risk posed by damaged batteries.

Heated Insole Lawsuits 

The latest safety warning adds to a growing pattern of safety concerns involving battery powered heated insoles sold through Amazon, which have been linked to fires and severe burn injuries in multiple incidents reported to federal regulators.

Federal safety officials have previously issued similar warnings involving other heated insole products. In July 2025, the U.S. Consumer Product Safety Commission warned consumers to immediately stop using iHeat heated insoles sold on Amazon after receiving 11 reports of fires, explosions and other thermal incidents involving the products. At least eight of those reports involved burn injuries, including second and third degree burns. 

The agency later issued another warning in September 2025 involving Tajarly heated insoles, which were linked to multiple ignition incidents that resulted in burn injuries, including cases that required extended hospital stays. In both situations, the manufacturers were reported to be unresponsive to CPSC requests for safety information or voluntary recalls.

As reports of burn injuries have continued to emerge, consumers are now filing heated insole burn injury lawsuits, alleging the products were defectively designed, lacked adequate temperature controls or automatic shutoff protections, and were sold without sufficient warnings about the risk of burns while being worn inside enclosed footwear.

Heated insole injury attorneys are reviewing claims on behalf of consumers nationwide. Investigations focus on incidents where these battery-powered products allegedly malfunctioned during ordinary use, leading to serious injuries, including:

• Burns to the feet or toes
• Overheating, igniting or catching fire during normal use
• Emergency medical treatment or hospitalization for burn injuries
• Surgery or skin grafts related to foot burns
• Ongoing pain, scarring or mobility limitations

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