You can have batteries in your luggage, in a device for which they are intended, provided it is turned off. AirTags being a device which transmit and and contai

You can have batteries in your luggage, in a device for which they are intended, provided it is turned off. AirTags being a device which transmit and and contain lithium, and wouldn’t normally be be turned off might be forbidden under a strict interpretation of the rules. The statement from Lufthansa is clearly an interpretation of existing rules and not a specific ban on AirTags.