“Our investigation determined that the battery supplier was no longer meeting our quality standards and that there is a potential that certain battery cells supplied by this vendor may pose a fire safety risk,” Humane wrote in an email viewed by TechCrunch. “As a result, we immediately disqualified this battery vendor while we work to identify a new vendor to avoid such issues and maintain our high quality standards.”
https://techcrunch.com/2024/06/05/humane-urges-customers-to-stop-using-charging-case-citing-battery-fire-concerns