The Xtreme Power Li90 is a family of compact three-phase lithium UPS systems designed for data center, industrial, telecom, and facility infrastructure requiring high power density, internal batteries, and reliable operation in elevated-temperature environments. The Li90 platform delivers scalable 3-phase lithium UPS capacity in a slim, lightweight cabinet architecture optimized for space-constrained electrical rooms and retrofit applications.
Available in 10 kVA, 20 kVA, and 30 kVA models, Li90 integrates lithium iron phosphate (LiFePO₄) batteries within the UPS enclosure to eliminate external battery cabinets while maintaining compact footprint and simplified installation. This architecture enables deployment in locations where traditional VRLA UPS systems are oversized, heavy, or impractical. Designed for distributed edge and telecom applications requiring reduced maintenance and compact footprint. See UPS for Edge Data Centers.

Compact Li90 3-phase lithium UPS with internal batteries
Available Li90 Capacities
The Li90 family provides compact three-phase lithium UPS protection across multiple power levels to support distributed and centralized infrastructure requirements.
10 kVA lithium UPS
https://xpcc.com/li90-10kva-lithium-ups/
20 kVA lithium UPS
https://xpcc.com/li90-20kva-lithium-ups/
30 kVA lithium UPS
https://xpcc.com/li90-30kva-lithium-ups/
View full Li90 product specifications
https://xpcc.com/products/li90/
Compact 3-Phase Lithium UPS Architecture
Li90 integrates lithium batteries directly within the UPS cabinet, eliminating the need for external battery frames common in conventional three-phase UPS systems. This internal battery architecture reduces footprint, weight, and installation complexity while enabling deployment in constrained electrical environments.
Platform architecture advantages:
- Internal lithium batteries
- Slim cabinet footprint
- Reduced system weight
- Simplified installation
- No external battery cabinets
- Minimal maintenance access
High-Temperature 3-Phase UPS Platform
Li90 supports reliable operation in ambient temperatures up to 50 °C (122 °F), enabling deployment in telecom shelters, industrial rooms, and electrical spaces where VRLA UPS systems require cooling or derating.
High-temperature UPS solutions
https://xpcc.com/high-temperature-ups/
Ideal Lithium Replacement for 3-Phase VRLA UPS
Many legacy three-phase UPS installations rely on large external VRLA battery cabinets that consume floor space and require periodic replacement. The Li90 platform replaces these systems with integrated lithium UPS architecture offering longer service life, reduced footprint, and simplified lifecycle maintenance.
Compared to typical VRLA 3-phase UPS systems:
- Smaller installation footprint
- Lower system weight
- No external battery cabinets
- Longer battery design life
- Higher temperature tolerance
- Reduced lifecycle cost

Slim Li90 cabinet footprint for space-constrained electrical rooms
Li90 Applications
The Li90 platform supports compact three-phase lithium UPS deployments across distributed and centralized infrastructure environments.
Telecom and distributed infrastructure
https://xpcc.com/industrial-lithium-ups/
Hospitality and casino infrastructure
https://xpcc.com/hospitality-ups-systems/
Industrial automation and control
https://xpcc.com/industrial-lithium-ups/
Data center and IT rooms
https://xpcc.com/data-center-ups/
Selecting the Right Li90 Model
Each Li90 capacity supports different infrastructure tiers and runtime requirements.
Distributed and small electrical rooms
10 kVA → https://xpcc.com/li90-10kva-lithium-ups/
Facility and mid-tier infrastructure
20 kVA → https://xpcc.com/li90-20kva-lithium-ups/
Central IT and core infrastructure
30 kVA → https://xpcc.com/li90-30kva-lithium-ups/
Li90 3-Phase Lithium UPS Platform
The Li90 family provides scalable three-phase lithium UPS capacity with internal batteries, compact cabinet architecture, and high-temperature capability across 10 kVA to 30 kVA deployments.
Li90 product overview
https://xpcc.com/products/li90/
10 kVA model
https://xpcc.com/li90-10kva-lithium-ups/
20 kVA model
https://xpcc.com/li90-20kva-lithium-ups/
30 kVA model
https://xpcc.com/li90-30kva-lithium-ups/
Request Li90 platform or model selection support →
(800) 582-4524
sales@xpcc.com
