Alfred smart door lock published at CES 2020: it can be recharged remotely without the need to replace the battery

 

Like all smart door locks on the market, Alfred ML2 smart locks can be opened through the phone's NFC function and cards. But it also has a function that most smart locks don't have. Wi-Charge says their technology can transfer power to the door lock, open and close the door at any time, without worrying about a shortage of power or changing the battery. Wi-Charge said the technology could "safely and efficiently provide several watts of power to customer equipment at a distance the size of a room", but did not mention how big the "room size" was.

 

The concept of long-distance wireless power transmission can be traced back to more than 100 years ago and has been proved to be effective, but its application in daily equipment has not been recognized by most technology companies. Wi-Charge has been involved in this field for many years, claiming to be the first company to receive regulatory approval for remote wireless charging technology, and its wireless indoor lighting equipment won the 2018 CES Innovation Award in the smart energy product category.

The Alfred ML2 smart lock starts at $699, with an additional charge of $150 to $180 if remote wireless charging is optional.

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