Wyze lock battery replacement instructions?

Approaching the 6 month mark of use and got a first low battery alert at around 20%. Figured I get to it sooner than later. I went to look for battery replacement steps in the manual but for the life of me I can’t find a link to a Wyze Lock manual document. Nor any other “article” covering the subject of replacement of batteries of an already installed unit.
So my question is should I be worried of resetting the lock in any way after pulling the batteries or is it momentary power loss fool proof and so there no need for battery replacement instructions? The two banks of batteries makes me wonder if perhaps formal replacement steps would entail replacing one pair first and then the other to avoid total power disconnect. If so is it important which order they are replaced?
I’m probably over thinking this but I want to avoid needless calibration or Bridge pairing.