Li90 – Lithium Iron Phosphate (LFP) Three-Phase UPS

10kW-30kW | 208/120 VAC Three-phase | Lithium High-Temperature UPS

The Xtreme Power Li90 Series delivers industry-leading three-phase power protection in an ultra-slim footprint using advanced Lithium Iron Phosphate (LiFePO₄) batteries. Available in 10 kW, 20 kW, and 30 kW models, the Li90 provides unity power factor output, exceptional efficiency, and up to 15 years of battery life—all in a cabinet just 12.6 inches wide.

Engineered for edge compute, automation, industrial controls, and retrofit applications, the Li90 outperforms traditional UPS systems with 3,000–5,000 charge/discharge cycles, high-temperature resilience, hot-swappable lithium battery modules, and integrated maintenance bypass for uninterrupted uptime.

Learn more about its high-temperature capabilities on the High-Temperature UPS page and see complete details at 3-Phase Lithium UPS Li90.

Key Features & Benefits

• Long-Life LiFePO₄ Batteries – Up to 15 years of service life and 3,000–5,000 cycles, reducing battery replacements and maintenance costs
• Operating Temperature Resilience – Functions safely up to 50°C (122°F) with capacity derating above 40°C (104°F), ideal for edge and industrial environments
• Unity Power Factor Output (1.0 PF) – Delivers full-rated kW capacity for high-density IT loads without derating
• Slim, High-Density Cabinet – Just 12.6 inches wide, saving valuable floor space in retrofit or constrained installations
• Hot-Swappable Lithium Battery Modules – Replace batteries without powering down the UPS or connected loads
• Integrated Maintenance Bypass – Enables safe on-site service while keeping critical loads powered
• Touchscreen LCD Interface – Full-color 4.3-inch display with one-line mimic, alarms, and event logging
• Smart De-Dust Cooling System – Self-cleaning fans extend reliability in dusty industrial environments
• Rugged Design – Conformal-coated circuit boards (PCBs) protect against humidity and airborne contaminants
• Advanced Communications – Supports SNMP, RS-485, USB, EPO, dry contacts, and dual communication card slots

Product Snapshot

Why Choose Li90?

• Longest lithium battery life in its class
• Higher temperature tolerance for harsh environments
• Best-in-class power density and installation footprint
• Full power (kW = kVA) output without derating
• Lower total cost of ownership over a 10–15 year lifecycle

Applications

The Li90 UPS is built for critical three-phase environments where compact design, longevity, and reliability are essential:

• Pro AV and Video Walls – See UPS for Pro AV and UPS for Video Walls
• Home Automation / CEDIA Systems – See UPS for Home Automation
• Data Centers and Edge Compute – See Data Center UPS
• Hospitality and Commercial Facilities – See Hospitality UPS Systems

Competitive Comparisons

• Xtreme Li90 – E91 Comparison – 15-year battery and smaller footprint
• Xtreme Li90 –APC Smart-UPS Ultra  – High temperatures, smaller footprint, and integral bypass
• Xtreme Li90 – Eaton 9355 Comparison – Higher efficiency, smaller footprint, lower weight
• Xtreme Li90 – Schneider APC Easy UPS 3S Comparison – more runtime and 15-year battery
• Xtreme Li90 – Vertiv EXS Comparison – more runtime, smaller footprint, and lithium longevity

Related Products

• E91 UPS – High-efficiency three-phase UPS for data centers
• M90U UPS – Modular three-phase UPS family for enterprise applications

Contact Us

The Li90 UPS delivers long-life lithium performance, unity power factor, and best-in-class density for three-phase applications. Compact, efficient, and field-serviceable, it’s ideal for edge compute, automation, and commercial infrastructure.

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(800) 582-4524

sales@xpcc.com