I’m curious. There are a lot of lithium battery drones lost in trees and forests. Will those batteries eventually crack open and catch fire?
Probably not if they self-discharge over time.
Here are good links on the topic.
https://www.grepow.com/blog/the-real-cause-of-the-mapping-drone-battery-fire.html
https://mavicpilots.com/threads/boulder-county-fire-started-by-drone-crash-april-2022.124936/