I have a Kwikset 914 that started blinking red.
I looked at the device on ST and the battery was reporting 20%.
I took the batteries out and tested them. They all tested good.
So I put them back in and ST reported the battery was at 80%.
But right after I unlocked the door it started reporting 20%.
So not sure if I have a defective unit or that I need to do something to fix this.