Last week I purchased an Shelly Windows/Door 2 Sensor. The device is working proberly (the funcions itself) except the battery life time. The battery is completly discharged within 3 days.
I disabled all functions (LED Control, Alarms; Tilt, MQTT, Wakeup by Light, Cloud, Vibration, ) and measured the idle current. When the device sleeps (no WLAN.., Door closed) the current is about 23mA, when WIFi is switched on then the current is about 100mA, this is ok.
Firmware is 20200818-120407/v1.8.2@36539b0b
So the calculation is simple 
Battery is empty after 1600mAh / 23mA ~ 69h This is what I observed.
Any hints whats wrong?
