The Xtreme Power Li90 Series is a three-phase lithium online double-conversion UPS platform designed for infrastructure modernization, replacement of aging systems, and long-term lifecycle optimization.
It is commonly evaluated against UPS platforms from Eaton, Vertiv, and APC when upgrading legacy infrastructure or standardizing new enterprise deployments.
Learn more about the Li90 platform:
https://xpcc.com/3-phase-lithium-ups-li90/
Where Li90 Fits
Li90 is positioned as an integrated lithium three-phase UPS platform designed for facility-level infrastructure.
- J60C / J60Ci → shallow rack UPS
- P91 Li → standard rack UPS
- J90 / J90i → high-density rack UPS
- Li90 → facility-level three-phase lithium UPS (this platform)
Li90 is typically selected for infrastructure modernization projects where lifecycle cost reduction, reduced maintenance, and long-term performance are priorities.
Key Differentiators
Li90 is engineered for enterprise environments where lifecycle predictability and infrastructure efficiency are critical.
Key characteristics include:
- Integrated LiFePO₄ battery architecture
- Online double-conversion topology
- High power density with compact footprint
- Reduced maintenance compared to VRLA UPS systems
- Improved thermal performance and deployment flexibility
- Predictable long-term lifecycle cost
These attributes position Li90 as a modernization-focused platform for enterprise infrastructure.
How to Use This Comparison Hub
This page includes both platform-level and model-level comparisons.
Platform comparisons evaluate modernization strategy and system architecture.
Model comparisons focus on capacity alignment and replacement planning.
Most evaluations begin with platform selection, followed by sizing based on existing infrastructure.
Li90 Lithium UPS Comparison Matrix
Enterprise UPS projects frequently involve replacement of aging infrastructure alongside evaluation of modern platforms.
Legacy platforms such as Eaton 9355 and 93E are commonly evaluated for replacement with lithium UPS systems.
Platform Comparisons
| Category | Eaton (Legacy – Replacement) | Eaton (Modern) | Vertiv | APC |
| Platform | https://xpcc.com/li90-vs-eaton-9355/ (Discontinued – Replacement Focus) https://xpcc.com/li90-vs-eaton-93e-ups/ (Discontinued – Replacement Focus) |
https://xpcc.com/li90-vs-eaton-93pm/ | https://xpcc.com/li90-vs-vertiv-exs-v/ | https://xpcc.com/li90-vs-apc-galaxy-vs-ups/ |
Model-Level Comparisons
| Capacity | Eaton (9355 / 93PM) | Vertiv EXS-V | APC Galaxy VS |
| 10 kVA | https://xpcc.com/li90-vs-eaton-93pm-10kva/ https://xpcc.com/li90-vs-eaton-9355-10kva/ (Discontinued) |
— | https://xpcc.com/li90-10-vs-apc-galaxy-vs-10kva/ |
| 20 kVA | https://xpcc.com/li90-vs-eaton-93pm-20kva/ https://xpcc.com/li90-vs-eaton-9355-20kva/ (Discontinued) |
https://xpcc.com/li90-20k-vs-vertiv-exsv-20kva/ | https://xpcc.com/li90-20-vs-apc-galaxy-vs-20kva/ |
| 30 kVA | https://xpcc.com/li90-vs-eaton-93pm-30kva/ https://xpcc.com/li90-vs-eaton-9355-30kva/ (Discontinued) |
https://xpcc.com/li90-30k-vs-vertiv-exsv-30kva/ | — |
Why Lithium for Infrastructure Modernization
Many enterprise UPS projects are driven by replacement of aging VRLA-based systems.
Lithium UPS platforms enable extended battery service life, reduced maintenance intervention, improved infrastructure density, and more predictable lifecycle cost.
Learn more:
https://xpcc.com/lithium-ups-guide/
Infrastructure Architecture Context
UPS selection at the facility level is closely tied to long-term infrastructure strategy, including thermal design, maintenance planning, and system standardization.
Li90 supports modernization strategies that maintain existing electrical architecture while improving lifecycle performance and operational efficiency.
Deployment Environments
Li90 is commonly deployed in enterprise data centers, industrial facilities, commercial infrastructure, and edge data center environments.
Explore related applications:
- https://xpcc.com/data-center-ups/
- https://xpcc.com/ups-for-industrial-automation/
- https://xpcc.com/ups-for-edge-data-centers/
- https://xpcc.com/industrial-lithium-ups/
Li90 vs Other Xtreme Power Platforms
Li90 addresses facility-level infrastructure, while other platforms serve rack-level deployments.
Compare related systems:
- J90 Comparisons → https://xpcc.com/j90-ups-comparisons/
- J90i Comparisons → https://xpcc.com/j90i-ups-comparisons/
- P91 Li Comparisons → https://xpcc.com/p91-li-ups-comparisons/
Comparison Ecosystem
For a complete overview of UPS comparison resources:
Ideal Applications
Li90 is well suited for infrastructure modernization, enterprise data centers, industrial facilities, and environments requiring long-term lifecycle predictability.
Plan With Confidence
Xtreme Power Conversion supports UPS sizing, replacement planning, and infrastructure modernization.
Phone: (800) 582-4524
Email: sales@xpcc.com