[keithpeter]

UK: I ran into the thing about batteries when sending a phone back to supplier not so long ago. Strange, I had to show the Post Office counter lady the original packaging that had space for the battery cut out of the foam. After some discussion, I was allowed to send the phone back but with the battery in the phone.

[sesutton]

I don't think restrictions on mailing batteries is that strange. Lithium-ion batteries can fail pretty spectacularly when damaged [0].

https://www.youtube.com/watch?v=wUFxlf4fXjo

[stephengillie]

The ability to weaponize a failure-at-will is somewhat documented by neo-anarchist cookbooks.

[MatthewWilkes]

I've posted batteries plenty of times, you just need to add a warning label to the outside of the packagem