A:AnswerYes, you can replace the batteries and these batteries don’t need to come from Apple. You just twist off the back of the tag, remove, replace and re-twist. I am not a handy gal, but this was not a problem for me.
A:AnswerAbout one year until battery replacement, which is alerted to you by the Find My iPhone app. Battery replacement was easy (twist off back of tag, remove old, put in new, retwist back on) and does require a special Apple battery.
A:AnswerThere are apps that will alert samsung users of a near by unknown airtag. But it wont make a sound from the tag if that is what you are asking.
A:AnswerIf you still have an old device with the same apple id you connected the airtag to, you can remove the airtag and connect it to another new apple id. Another option is to share the airtag with another apple id from the main device.
