So I got fed up of constatnly needing to replace the batteries in my smart deadbolt lock, so I decided to convert it to a wired connection/backup battery. So far been working for over a month. Even tested the backup battery (which is rechargeable) and it ran for several days (next test is to see what the max amount of days).
Hardware needed:
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YX850 Power failure automatic switching: https://www.aliexpress.com/item/4000030742166.html?spm=a2g0o.order_list.order_list_main.212.60b2180288MsiF
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5V Lithium Battery Rechargeable: https://www.aliexpress.com/item/1005005930716695.html?spm=a2g0o.order_list.order_list_main.217.60b2180288MsiF
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type 9V Battery Snap Connector: https://www.aliexpress.com/item/1005005930716695.html?spm=a2g0o.order_list.order_list_main.217.60b2180288MsiF
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5V transformer
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wire (from the pcb board to the lock)
I ran the wire inside my door so I bought this piece as well:
- Door Loop Electric Exposed Mounting Protection: https://www.aliexpress.com/item/1005001568585310.html?spm=a2g0o.order_list.order_list_main.223.3a0818021ssULp
I’ll try to post some images of my setup once I get a chance.