@santi
There's a HACS integration called Battery Notes which you can use to notify when a device does not report its battery level for a day or two. I still haven't figured out how to do something similar for wall-powered devices (like a heartbeat check).
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Mauricio Teixeira 🇧🇷🇺🇲 (badnetmask@hachyderm.io)'s status on Tuesday, 29-Apr-2025 11:58:06 JST Mauricio Teixeira 🇧🇷🇺🇲