[tsimionescu]

Here [0] is the FAA site about lithium battery powered devices in checked-in baggage. The ICAO has the same rule, but I haven't found a similarly concise statement.

> Devices containing lithium metal batteries or lithium ion batteries, including – but not limited to – smartphones, tablets, cameras and laptops, should be kept in carry-on baggage. If these devices are packed in checked baggage, they should be turned completely off, protected from accidental activation and packed so they are protected from damage. [emphasis mine]

[0] https://www.faa.gov/newsroom/lithium-batteries-baggage