I've got an existing alarm panel with a 12V SLA battery. The panel has a 17V AC input and connects a charging circuit to the battery, and also has 12V aux power output.
I've connected the Konnected board and the existing powered sensors up to the 12V aux power from the alarm panel, and this seems to work fine when the panel is running on mains or battery - giving me a battery back up.
However the battery and alarm panel take up all the room inside the cabinet. I'd really like to rip out the alarm panel board and replace it with a smaller board that can charge the 12V SLA battery and supply the 12V to the Konnected board and the powered sensors. Ideally it would also have outputs to indicate if it is running on mains or battery, and if the battery is low - something the alarm panel does natively but doesn't expose as outputs.
Has anyone come across or know of a board like this?