Do these tags not use lithium batteries which are not permitted in checked luggage due to fire hazard?
Apparently only in large quantities.
Don't risk having them take your bag and put it in the belly. These days if you're seated last it is almost a certainty. Get a separate small slim computer bag with shoulder strap. I tuck my point-and-shoot camera in there with laptop and chargers, etc. Also has all the paperwork. You can slide it under the seat if worse comes to worse. Wear one pair boots on the plane with backups in checked bag. Stick a pair of crushable slippers in carryon and slip out of the boots in flight if needed (or just walk around in socks). Easier to shove boots overhead than a bag. One set of hunting clothes, underwear, and socks in the bag + toiletries/meds. I still have room for extra glasses, binocs (2), and two scopes. Stuff a light fleece jacket or rain jacket in the bag. Wear your cap. It can go in the seat slot on the plane.
My computer bag has always been let slide. If it will slip under the seat ahead, they don't care ... so far. But airlines are realizing what a cash cow it can be to charge for luggage. A lot of current controversy about this.
