Li90 – Lithium Iron Phosphate (LiFePO₄) Three-Phase UPS

10 kW, 20 kW, 30 kW | 208/120 VAC Three-Phase

Long-Life, Compact, Lightweight Lithium UPS for Critical Three-Phase Applications

The Xtreme Power Li90 Series is a high-performance three-phase lithium UPS designed for applications where battery longevity, compact footprint, and reduced system weight are critical to lifecycle cost and installation success. Powered by advanced Lithium Iron Phosphate (LiFePO₄) batteries, the Li90 delivers up to 15 years of battery design life under ideal operating conditions, with reliable operation in environments up to 50 °C (122 °F).

Available in 10 kW, 20 kW, and 30 kW models, the Li90 provides unity power factor (kW = kVA) output in an ultra-slim 12.6-inch-wide cabinet, making it ideal for edge computing, industrial automation, retrofit projects, and space-constrained facilities.

Product Documents

Access detailed specifications, performance data, and installation guidance for the Li90 UPS platform.

Datasheet (PDF)
Li90 Product Flyer 

Explore additional solutions in our
Industrial Lithium UPS portfolio and learn more about systems designed for extreme environments on our
High-Temperature UPS solutions page.

Compact Footprint and Lightweight Architecture with Industry-Leading Battery Life

Traditional three-phase UPS systems rely on large, heavy VRLA battery cabinets that increase floor space, structural requirements, and long-term maintenance costs. The Li90 replaces that approach with an integrated lithium architecture that is significantly smaller and lighter, simplifying transport, installation, and service.

With 3,000–5,000 charge/discharge cycles and a battery design life of up to 15 years under ideal conditions, the Li90 significantly reduces battery replacements over a 10–15 year system lifecycle, lowering downtime risk and total cost of ownership compared to conventional VRLA-based UPS platforms.

Key Features & Benefits

• Up to 15-Year LiFePO₄ Battery Design Life
  Long-life lithium batteries rated for 3,000–5,000 cycles under ideal operating conditions reduce replacements and maintenance over the system lifecycle.
• Compact, Lightweight Cabinet
  Just 12.6 inches wide, the Li90 delivers high power density while reducing footprint and system weight compared to traditional three-phase UPS systems.
• High-Temperature Operation
  Designed to operate safely up to 50 °C (122 °F), ideal for industrial, edge, and non-conditioned environments.
• Unity Power Factor Output (1.0 PF)
  Delivers full usable kW capacity without derating for high-density loads.
• Hot-Swappable Lithium Battery Modules
  Battery modules can be replaced without powering down the UPS or connected equipment.
• Integrated Maintenance Bypass
  Enables safe on-site service while keeping critical loads powered.
• Rugged Industrial Design
  Conformal-coated PCBs and a smart de-dust cooling system enhance reliability in harsh environments.
• Advanced Communications
  Supports SNMP, RS-485, USB, EPO, dry contacts, and dual communication card slots.

Product Snapshot

*Battery life is based on ideal operating conditions, including controlled ambient temperature, charge/discharge profile, and usage. Actual battery life may vary based on application and environment.

**Elevated operating temperatures may reduce battery service life over time.

Why Choose the Li90 Lithium UPS?

• Up to 15-year lithium battery life
• Smaller footprint and lighter weight than traditional VRLA three-phase UPS systems
• Designed for high-temperature and industrial environments
• Full rated output power (kW = kVA)
• 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 Solutions
• Hospitality and Commercial Facilities – See Hospitality UPS Systems

For high-capacity deployments, view the dedicated
Li90 30 kVA Lithium UPS product page.

Compare the Li90 to Other Three-Phase UPS Platforms

Standardizing or evaluating alternatives often requires clear side-by-side data. We’ve published detailed comparisons showing how the Li90 compares to traditional three-phase UPS platforms from APC, Eaton, and Vertiv, as well as other Xtreme Power lithium systems.

View all Li90 UPS comparisons
https://xpcc.com/li90-ups-comparisons/

Contact Us

The Li90 UPS delivers long-life lithium performance, compact high-density design, and high-temperature resilience for modern three-phase power protection.

Contact Us | View All Products | UPS Selector
(800) 582-4524
sales@xpcc.com