Good case for storage and shipping.
Very nice, nice catch.
Hadn’t thought much about it, but I guess these things are probably pretty hard to carry onto a commercial flight. Worse than the “residual gasoline” that ICE pilots have to worry about.
I was wondering where have you find those warning stickers? I think it’s a good idea to have those on the case and would like to add some myself.
Batteries can’t be checked, only in cabin. But there is a mAh limit which effectively limits what you can carry to things like laptops and mobile phone boosters.