Indeed, the Homey device battery status is more gadget than real. So measure your battery with a multimeter tool, or just put in a brand new one to see if issues disappear.
Wifi vs. Zigbee
-
Lost connection:
Fixing disconnected Zigbee devices (without having to modify all flows) -
Interference check:
WiFi ZigBee Interference Checker -
Background:
https://support.metageek.com/hc/en-us/articles/203845040-ZigBee-and-WiFi-Coexistence -
Wifi guideline
http://wifimetrix.com/channels-1-6-11-only -
Athom advice:
https://support.athom.com/hc/en-us/articles/360019239879-Advice-on-building-a-stable-Zigbee-network