Energizer has come up with a coin battery for AirTag that aims to be as safe as possible, preventing burns if a child swallows it.

Energizer Ultimate Child Shield coin batteries include the version used to power Apple AirTag

Energizer Ultimate Child Shield coin batteries include the version used to power Apple AirTag
Apple has previously dealt with a lot of criticism over the extremely useful AirTag, due to its power source. As a very compact device, it uses a lithium coin cell battery, which has been deemed a choking hazard by regulators.
This has already led to Apple updating its warnings for the AirTag to comply with violation rulings.