In practice, just replacing the AirTag's battery should not cause it to unpair with your iPhone. I'm assuming that you replaced the battery with one that does not use a bitterant coating and it was a CR2032 coin-type battery. Have you tried any of the following: Tried removing & repla...
They are battery-operated apparatus that come in various shapes and sizes. Many are manufactured to resemble pen drives while the others have been made to resemble pens or cigars. Regardless of their shape could be, all of them are intended to address a similar condition. Many people use E...