Interesting thread
I work in the aviation industry and lithium batteries are a real pain at the min as the rules change all the time. My role I have to be fully trained on dangerous goods.
All aviation authorities inc the CAA answer to a body called IATA and they produce the rules for the carriage of dangerous goods by air.
IATA have produced a table for check in staff see attached
https://www.iata.org/whatwedo/cargo/...ble-23A-en.pdf.
In it you will find relevant info regards lipo's
If oople members would find it of use I will post any updates to the rules regards lipos and air travel.