If you’re headed to family for the holidays, consider picking up a pack of CR2032 coin cell batteries on your way. Have your folks check their AirTag battery life in“Find My” on iPhone. AirTags will report low and no batteries in that app. Rotate the top of the AirTag counterclockwise, swap battery, replace top. Presto.
@Tarah Don’t know if others find it difficult to twist open the smooth and shiny AirTags, but I find that wearing rubber gloves makes it a lot easier to grip
@dpontifex I didn’t have trouble with it but I’d just done the dishes so my fingers were squeaky.