Introducing the XPO-UPS model, a compact Uninterruptible Power Supply with a 170-270V AC input range, providing stable power output of 195-250V sine when the input is present and 230V + 5% quasi-sine without a healthy input. It accommodates a 200W lamp load, featuring a 12V/7Ah maintenance-free lead-acid battery for a 5-minute backup on a 200W lamp load or 20 minutes on a 14” PC monitor. Inclusive of a UPS trainer, the XPO-UPS model features a cuboid demo rack with non-destructive simulated faults for practical troubleshooting insights. It also serves as a USB port-based lab printer/scanner machine. With 17 test points and an optional 1-phase dimmer, the model is organized into Input/Output, Battery/Transformer, AVR/Charger, and Inverter modules, covering charger study, changeover logic, and offline UPS operation. Designed for education and experiments, the XPO-UPS model offers reliable performance in a space-efficient package.