CO Detector Heiman HS-720ES-M Draining Battery Matter over Thread

Hi, first time posting.

I’m looking for a clue what to check when new device Heiman HS-720ES-M drains doble alkaline AA batteries in 7 days. Should be at least few months. I have up-to-date HAOS runing on proxmox with SONOFF Dongle Plus E flashed as thrad router (on long USB extender). I have over 30 matter devices over thread devices in small woden house and no other problems. A lot of Ikea smart plugs in every room - they are routers so coverage is massive. No other devices in the room (also Heiman smoke detector) is draining battery. I tried moving sensor between diffrent rooms but without change in battery consumption.

EDIT: I removed previously posted logs as they were result of me disabling device just before battery died.

CO sensor software is up to date: version 1.6

  • Core 2026.7.4
  • Supervisor 2026.07.5
  • Operating System 18.2
  • User Interface 20260624.6

Thanks.