Just ran across these. Holy cow...
https://gotowncrier.com/2023/12/county-officials-urge-proper-disposal-of-lithium-batteries/
https://azbigmedia.com/lifestyle/lithium-battery-fires-a-growing-concern-in-valley/
"Consumers using products with such batteries should watch for signs like high heat or swelling of the product frame..."
Or, flames licking up your wall.