I am asking more-or-less the same question as in this post: How can I disconnect power to an ADT alarm system?
The house has an ADT alarm installed by its previous owner. I am not paying for monitoring, so I see no real value in it. It has become a nuisance lately because there are battery-powered smoke detectors which signal back to the system, as I've recently discovered, do so on low battery.
I've attached some pictures to help with specifics. As it appears to me, the unit normally draws power from an A/C adapter next to the box, but also has a backup battery. My question: can I simply disconnect both, or would there be other power sources to feed the system's noise makers?
I'm wondering about the control panels... I assume they are hard-wired, but would they have their own internal back-up power or operate solely from their connection to the main unit?