Despite @JonathanReez’s comment, the risk from checked batteries is real. It’s relatively small - but higher than never having a cargo hold fire.
I had a sealed lead acid (motorcycle) battery that I took legally as carry-on on a NZ domestic flight. It was stupidly and improperly rejected by checkin.
I hid it in an airport garden and it was collected by someone else in due course.
They subsequently carried it as check-in luggage on the same route.
I gave them the correct IATA magic words and exemption codes to write on the wrapper - as required by the rules.
The battery arrived OK BUT it was evident that it had been checked during transit. Presumably it would have been removed if it had not met rules.
IATA code must be good juju :-). 次に何が起こりますか?
「何もしないでください」が起こります。
バッテリーの取り外しが起こります。
罰金または起訴される可能性があります。