Using a GEL battery that was intended for the office power supply.
The plan is to not discharge this battery below 50%, effectively extending it's lifespan.
The battery an charger is inside, on the floor of the cabinet.
12V 6A (iirc) Gel charger.
The charger is directly connected to the battery.
This appears to be the only photo I have of the setup:
There is no DB board at the home cabinet.
The power supply features a 10A fuse.