Vertiv Liebert PSI5-800RT120 uninterruptible power supply (UPS)
800VA / 720W capacity, 120VAC
NEW batteries installed March 2025 — fresh runtime, not aged stock
Line-interactive design with buck/boost Automatic Voltage Regulation (AVR)
Pure sine wave output on battery — safe for active-PFC power supplies
2U rack-mountable or self-standing tower (includes tower stands)
6 x NEMA 5-15R outlets (1 group programmable)
Rotatable LCD display for rack or tower orientation
USB Type-B port + IntelliSlot slot for optional SNMP/network card
User-replaceable, hot-swappable batteries
AVR input range 75–146 VAC, transfer time 4–6 ms
10 ft NEMA 5-15P input power cord
UL 1778 listed, FCC Class B, RoHS compliant, Energy Star
Open-box: carton opened, new batteries installed, resealed
Powered it up / ran a self-test
New retail runs ~$280–550