I see many manufacturers advertising the fact that their door lock is “battery powered - no cords needed” as a feature.
I find this crazy! I much prefer a one-time installation over a constant yearly (or even 2 times a year according to some reviews) battery replacement. And don’t forget that if you’re too lazy to replace the battery in time, you might find yourself locked outside of your own house… unless you find some bizzare, hard to find, prehistoric 9V backup battery.
For some reason I couldn’t find ANY z-wave / zigbee door lock that is using a constant power.
There are other, non-“smart” door locks solutions that uses constant power, obviously, but I’m looking for something that I will be able to control from my SmartThings…