Li90 10kVA vs Vertiv Liebert EXS10KXRN
The Xtreme Power Li90 10kVA and Vertiv Liebert EXS10KXRN are 10 kVA online double-conversion three-phase UPS with ECO mode and integrated maintenance bypass for data center, industrial, and healthcare loads. Both are full-rated unity-PF systems; the Li90 differentiates on efficiency and heat, LFP battery life, operating temperature, footprint and weight, and warranty, while the EXS is a traditional VRLA platform.
What the Li90 (10kVA) brings
- Higher online efficiency, lower heat output (94.5% vs 93.4%)
- LiFePO₄ batteries, up to 15-year life vs 6–8
- Operation to 50 °C (122 °F)
- Far smaller footprint, over 65% lighter
- 5-year battery warranty vs 1-year; 2-year system + start-up
Side-by-side specifications
| Specification | Xtreme Power Li90 (10kVA) | Vertiv Liebert EXS10KXRN | Advantage / consideration |
|---|---|---|---|
| Rated capacity | 10 kVA / 10 kW | 10 kVA / 10 kW | Equal full-rated (unity PF) |
| Topology | Online double conversion + ECO | Online double conversion + ECO | Equivalent (both ECO mode) |
| Efficiency / heat | 94.5% / 1,985 BTU/hr | 93.4% / 2,410 BTU/hr | Li90 – higher efficiency, less heat |
| Battery technology | Lithium iron phosphate (LFP) | VRLA (lead-acid) | Li90 – LFP, smaller and lighter |
| Internal runtime at 10 kW | 15 / 30 / 45 min (1 / 2 / 3 strings) | 30 min | Comparable; Li90 scales to 45 min, much lighter |
| Battery life | Up to 15 yr / 3,000–5,000 cycles | 6–8 yr / approx 300 cycles | Li90 – far longer life |
| Maintenance bypass | Integrated (standard) | Integrated (standard) | Equal serviceability |
| Operating temperature | Up to 50 °C (122 °F) | Up to 40 °C (104 °F) | Li90 – rated to 50 °C |
| Size / weight (base battery) | 12.6 × 35.2 × 49.2 in / 287 lb | 22.7 × 25.6 × 51.2 in / 893 lb | Li90 – far smaller, over 65% lighter |
| Battery warranty | 5 years (LFP) | 1 year (VRLA) | Li90 – 5x battery warranty |
| System warranty | 2 years + start-up (US/Canada) | 1 year | Li90 – longer system warranty |
Specifications based on publicly available manufacturer documentation; confirm against current vendor data. The EXS provides about 30 min at 10 kW; the Li90 matches at two strings and exceeds at three, in a much lighter system.
Choosing between them
The Li90 leads on efficiency and heat, battery life, operating temperature, footprint, weight, and warranty; the EXS10KXRN is a traditional VRLA platform for Vertiv-standardized sites with controlled cooling. Capacity, topology, and base-config runtime are comparable.
Choose the Li90 (10kVA) 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
The Vertiv Liebert EXS10KXRN may fit if you need
- A traditional VRLA-based three-phase UPS
- Alignment with an existing Vertiv standard
- Standard operating conditions with controlled cooling
Frequently asked questions
Both are 10 kVA online double-conversion three-phase UPS with ECO mode and integrated maintenance bypass. The Li90 uses LFP for far longer battery life (up to 15 years vs 6 to 8), runs more efficiently (94.5 vs 93.4%, less heat), tolerates 50 C, and is far smaller and over 65% lighter; the EXS is a traditional VRLA platform.
Comparable, with a caveat. The EXS provides about 30 minutes at 10 kW. The Li90 scales by string: about 15 minutes on one, 30 on two, 45 on three. It matches at two strings and exceeds at three, in a much lighter system.
Substantially, about 287 lb with its base battery versus roughly 893 for the EXS, over 65% lighter, with a smaller footprint, which matters for floor loading and tight electrical rooms.
The Li90 carries a 5-year LFP battery warranty and a 2-year system warranty with start-up included (US/Canada); the EXS carries a 1-year warranty.
Related comparisons
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