I’ve change the battery after 2 years, it is used roughly 10 times per week.
i use it for 4 months now and i have change 3 batteries.!!!It is used 3 to 5 times per day…but i dont think that this battery usage is normal.I have it paired with a zigbee2tasmota coordinator like all my devices,about 20,sonoff/aqara/tuya,never had any abnormal battery consumption issue.