Full Circle Lithium Corp. (FCLI-X) has announced its FCL-X lithium-ion battery fire extinguisher has been certified by Underwriters Laboratories Solutions (UL) for taking on class-A fires in Canada and the U.S.

The certification is expected to widen the market reach for the product. Full Circle's extinguisher is one of the few measures designed to assist in fighting these types of fires, which burn much hotter than most traditional materials and are becoming more common due to the massive growth in the lithium-ion battery industry.

An Illinois-based safety science company that certifies products that meet its safety requirements, UL is a globally recognized standard. After passing a series of UL tests, Full Circle’s FCL-X was recognized as a water-based agent that can extinguish class-A fires, which are fuelled by ordinary combustibles such as paper, wood, rubber and cloth.

The company noted UL has not given any guidance for lithium-ion battery fires with the certification.

Called a “major inflection point” for the company, founder and CEO Carlos Vicens said the recognition “opens the door to accelerated revenue growth and a broader commercial footprint in the U.S. and globally."

FCL-X is now open to broader adoption in environments with common combustibles, the company said. Those include new markets in the industrial, commercial, retail and military sectors, plus government transportation agencies.

Full Circle is a Toronto-based company with manufacturing operations in Georgia. With the increasing number of electric vehicles (EVs) and consumer electronics – cars, trucks, bikes, scooters, cellphones – battery fires have been identified as a growing safety problem by fire departments around the world.

Such blazes – which can reach a staggering 2,760 C – burn more than three times hotter than a fire from a gas-powered car due to the battery chemicals, leading to thermal runaway.

Full Circle's sales and plans

FCL-X is a water-based chemical agent made from recycled batteries. By opting for water rather than foam or gel, the agent can “penetrate everywhere,” Vicens previously told Sustainable Biz Canada.

In a past test, around 120 gallons of FCL-X stifled an EV battery fire that reached approximately 800 C within 15 minutes, without re-ignition. A similar result was found when the product was tested by a large EV manufacturer and a fire department in Georgia.

Full Circle said in 2024 its product passed the NTA 8133, a Dutch standard for portable extinguishers of lithium-ion battery fires.

Sold in 2.5-gallon extinguishers and bulk containers and tanks, the company has already secured some customers. 

In 2024, it signed a global distribution agreement with US Fire Pump Company, made its first sale to a fire department in Georgia, and inked its first master distribution agreement in the U.S. with AEST Fire and Safety, a North Carolina-based firefighting equipment firm.

Over the horizon, Full Circle will continue to pursue regulatory and industry certifications, the company said, including those specific to lithium-ion battery fire suppression.

In March 2025, the company unveiled a memorandum of understanding with Japanese firm ITOCHU Corporation to bring FCL-X to Japan and South Korea. From those two countries as a starting point, the hope is to expand to other Asian markets.

In its Q1 financials announced April, the company reported US$384,749 in revenue from its initial quarter of FCL-X marketing and sales in North America.

The retail launch of a smaller FCL-X extinguisher designed for fires that emerge from electronics, e-scooters and e-bikes is expected to be launched by the end of Q3 2025.