FIBARO DOOR/ WINDOW SENSOR 2 FGDW-002 Battery drain

Hi everyone
I have just installed yesterday this Fibaro sensor.
The battery has been drained in 24 hours from 100% to 25% and stopped without any particular settings change.
Anyone has a clue where it could come from?
Thanks!

Hi,
Maybe you got a shelf warmer and therefore the battery was end of life?
Or you got a defect article. Try a new battery and see how it works.

Merry Andreas