Safe-T-Alert Power Supply

Thanks for the replies... I understand what everyone is suggesting, and thank y'all for them. I have done nothing to change the flow of current to the detector. And until I recently noticed that it was staying after the battery disconnect switch was employed, it always turned off and on "normally" because I would hear it "chirp" when it turned on. I also read in the manual that it is wired to the Load Side of the disconnect. The kitchen is on a slide and I had a roller on that slide replaced right before I put it to sleep for the winter in November. I just recently returned from a trip and that is when I noticed it was staying on. While it was stored I checked on it monthly and now I can't remember if it was powering up and down normally - meaning I don't recall if I heard a chirp. Perhaps the tech for whatever reason screwed with it. Guess I will have to start doing some line tracing.