Can you end up on the “No Fly” list for putting AirTags in your luggage?
These have batteries inside, which are not allowed in checked bags.
The AirTag uses a primary coin cell battery (aka non-rechargeable) those are generally not prohibited in regulations like rechargeable lithium batteries are.
Having more than 100mL of liquid is also not allowed, but you won't get on the no fly list for that. They'll just ask you to throw it out. Not sure about airtags, but it could be the same.
Electric toothbrushes, shavers, etc are all fine in checked luggage and their batteries are many times larger. There's nothing wrong with batteries so long as they don't surpass a certain size.
Battery bank of certain size is not allowed. General batteries inside device is normally fine
Batteries are not allowed in checked bags? I must have unintentionally broken this rule many times by bringing my electronics
Airlines mostly dislike 20,000 mAh power banks that can self-ignite in the checked-in luggage.
If they detect something like that in your luggage, they will kindly ask you to take it in the cabin.
They never cared about CR2032 cells.
Of course you can put these in checked bags. These contain tiny primary cells. TSA will issues with only Lithium batteries over 100wh.
Where did you get the information that batteries are not allowed? Please post a source for that claim.
This is like saying you can’t wear a watch on board because it has a battery..