This is a case for the Tile Mate bluetooth tracker.
With the original tile case it's not possible to change battery without breaking the case. So I made this case which has a threaded lid for replacing the battery.
The battery inside the Tile Mate is a CR2025, however the bigger CR2032 can also be used with this case.
Print the three parts, lid, plug and bottom. You might want to glue lid and bottom together.
There's two small dots on the bottom part which are supposed to hold the Tile circuit board in place. If your printer cannot print such small parts you might need to grind them down or removed them, the circuit board will probably stay in place anyway.