10kVA Online Double-Conversion UPS Comparison for Three-Phase Critical Loads
The Xtreme Power Li90 and the Vertiv Liebert EXS10KXRN from Vertiv are high-performance, online double-conversion UPS systems designed to protect mission-critical three-phase loads in data centers, industrial facilities, healthcare environments, and infrastructure applications.
While both platforms deliver full-rated output and support ECO-mode operation, the Li90 differentiates itself with higher efficiency, dramatically longer lithium battery life, a significantly smaller and lighter footprint, higher operating-temperature tolerance, and longer warranty coverage.
For environments where space, heat, and long-term lifecycle cost matter, the Li90 delivers clear next-generation advantages.
Learn more about the Xtreme Power Li90
https://xpcc.com/products/li90/
Key Differentiators at a Glance
- Lithium iron phosphate (LiFePO₄) battery technology
- Higher online efficiency with lower heat dissipation
- Significantly smaller footprint and over 65% lighter weight
- Scalable internal runtime using modular lithium battery strings
- Operation up to 50 °C (122 °F)
- Much longer battery service life
- Substantially longer battery and system warranty coverage
- Lower installation, maintenance, and total lifecycle costs
10kVA 208/120V Three-Phase UPS Feature Comparison
| Feature | Xtreme Power Li90 (10kVA) | Vertiv Liebert EXS10KXRN | Li90 Advantage |
| Rated Capacity | 10kVA / 10kW | 10kVA / 10kW | Equal full-rated (unity PF) output |
| UPS Topology | Online Double Conversion + ECO Mode | Online Double Conversion + ECO Mode | Equivalent premium protection |
| Online Efficiency / Heat Output | ~94.5% / ~1,985 BTU/hr | ~93.4% / ~2,410 BTU/hr | Lower energy use and cooling demand |
| Battery Technology | Lithium Iron Phosphate (LiFePO₄) | VRLA (Lead-Acid) | Much longer life, smaller & lighter |
| Internal Battery Runtime Options | ~15 min @ 10kW (1 string) ~30 min @ 10kW (2 strings) ~45 min @ 10kW (3 strings) |
~30 min @ 10kW | Comparable runtime in a much lighter system |
| Battery Life Expectancy | Up to 15 years or 3,000–5,000 cycles | ~6–8 years or ~300 cycles | Dramatically fewer replacements |
| Maintenance Bypass | Integrated (standard) | Integrated (standard) | Equal serviceability |
| Operating Temperature | Up to 50 °C (122 °F) | Up to 40 °C (104 °F) | Better for hot electrical rooms |
| Physical Size / Weight (with base battery) | 12.6 × 35.2 × 49.2 in / ~287 lb | 22.7 × 25.6 × 51.2 in / ~893 lb | Far smaller footprint and >65% lighter |
| Battery Warranty | 5 years (LiFePO₄) | 1 year (VRLA) | 5× longer coverage |
| Start-Up & System Warranty | Start-up included; 2-year warranty (US & Canada) | 1-year warranty | Longer standard coverage |
Where the Li90 Excels
- 10kVA three-phase deployments with space or floor-loading constraints
- Electrical rooms with elevated ambient temperatures
- Sites seeking lower heat output and reduced HVAC load
- Installations aiming to minimize battery replacement and downtime
- Projects focused on long-term lifecycle cost reduction
- Edge and industrial environments
When the Vertiv Liebert EXS10KXRN May Be a Fit
- Traditional data center environments with ample space
- Sites standardized on Vertiv EXS platforms
- Installations comfortable with VRLA battery replacement cycles
Who Should Choose Which?
Choose Xtreme Power Li90 if you need:
- Lithium UPS technology with long service life
- Higher efficiency and lower thermal output
- Scalable runtime in a compact, lightweight system
- Operation up to 50 °C without derating
- Longer battery and system warranty coverage
Choose Vertiv Liebert EXS10KXRN if you need:
- A traditional VRLA-based three-phase UPS
- Alignment with existing Vertiv infrastructure
- Standard operating conditions with controlled cooling
Download the Printable Comparison
Download the Xtreme Power Li90 vs Vertiv Liebert EXS10KXRN Comparison PDF
https://xpcc.com/wp-content/uploads/Xtreme-Li90-Vertiv-EXS10KXRN-Comparison.pdf
(Ideal for specification reviews, project planning, and internal approvals)
Compare Li90 to Other UPS Alternatives
Evaluating lithium and VRLA UPS platforms for critical infrastructure?
View all Xtreme Power UPS comparisons
https://xpcc.com/ups-comparisons/
Plan with Confidence
Xtreme Power Conversion supports early specification, design-in, and lifecycle planning for data centers, industrial facilities, healthcare, and regulated environments.
(800) 582-4524
sales@xpcc.com