Dry contact Zigbee relay battery powered | Home Assistant | Page 1

spare owl Jul 10, 2025, 8:50 PM

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Hi guys. I'm looking for a battery-powered dry-contact Zigbee relay that can last me several months. I was trying to use Sonoff's 5V circuits, but a 10,000mAh battery lasted less than a week. Does anyone know of one that consumes very little power, so I can put it in a waterproof box outdoors and have the battery last for months? Any information or advice would be helpful! Thanks in advance!

royal path Jul 11, 2025, 8:03 AM

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Hello, do it yourself with a latching type relay and ESP32-C6 or nrf or PVTO firmware if simpler is required. Will last forever with such a battery... (without auto-discharge hu...)

spare owl Jul 11, 2025, 6:25 PM

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Thanks dbn!

I don't have enough knowledge to do it myself. I'd need to know electronics to design it, solder the PCB, program it, upload the firmware, etc. That's why I'm looking for something commercial, simple, low-cost, Zigbee, and only serves to open or close a circuit.

Hope it exists something like this.

royal path Jul 12, 2025, 6:26 AM

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This works: Je viens de trouver ça sur AliExpress :
€8.29 | Tuya Zigbee 1 2 4 Gang Module de relais de commutateur USB 5V Dc 12v 24v 110v 220v 230v Contact sec 4CH contrôleur sur Rail Din passerelle requise
https://a.aliexpress.com/_EvClR0m

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Exist in dc and zgbee or wifi. I have dc zigbee 4 charnels it works perfectly. Can chose output mode with buttons (toggle, invert,...)

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8€

#Dry contact Zigbee relay battery powered