Li90 vs Eaton 93PM 20kVA
The Xtreme Power Li90-20k and the Eaton 93PM-20k are both online double-conversion UPS for data centers, healthcare, industrial, and enterprise IT. Both deliver continuous conditioned power and integrated maintenance bypass — but they’re built for different architectures: the 93PM is a cabinet UPS for centralized rooms with external VRLA batteries, while the Li90 is a compact lithium UPS with integrated battery modules for distributed and edge deployments.
Why engineers evaluate the Li90
- Lithium iron phosphate (LiFePO₄) battery technology
- Up to 15-year battery life vs 3–5 years for VRLA
- ~50% smaller floor footprint than a cabinet UPS
- Substantially lighter installed system weight
- 50 °C operating capability
- Integrated lithium battery modules — no external battery cabinets
20 kVA / 20 kW three-phase online UPS comparison
| Feature | Xtreme Power Li90 (20kVA) | Eaton 93PM (20kVA) | Advantage |
|---|---|---|---|
| Model reference | Li90-20k | 93PM — 9GC104A025E20R1 | Comparable system class |
| Capacity | 20kVA / 20kW (unity PF) | 20kVA / 20kW (unity PF) | Equal real power capacity |
| Topology | Online double-conversion | Online double-conversion | Equal protection |
| Battery technology | Lithium iron phosphate (LiFePO₄) | VRLA (lead-acid) | Li90 — much longer battery life |
| Battery life | Up to 15 years / 3,000–5,000 cycles | ~3–5 years | Li90 — dramatically fewer replacements |
| Efficiency (online) | 94.5% | Up to 95% | Comparable efficiency |
| Operating temperature | Up to 50 °C (122 °F) | ~40 °C typical | Li90 — better high-temperature tolerance |
| Dimensions (W×D×H) | 12.6 × 35.2 × 49.2 in | 22 × 42 × 74 in | Li90 — much smaller cabinet |
| Weight | 387 lb (two battery modules) | 1,276–1,918 lb (by battery strings) | Li90 — much lighter system |
| Floor footprint | 3.1 sq ft | 6.4 sq ft | Li90 — ~50% smaller |
| Battery warranty | 5-year lithium | 2-year VRLA | Li90 — longer coverage |
Specifications based on publicly available manufacturer data; verify against current Eaton documentation. Both are online double-conversion; the Li90 uses LiFePO₄. Note: 93PM online efficiency (up to 95%) is comparable to / marginally above the Li90’s 94.5%. Li90 warranty: 5-yr battery (USA; ambient ≤40 °C — 2-yr at 40–50 °C) and 2-yr on-site UPS.
Choosing between them
The key difference is installation architecture. The 93PM is a large cabinet UPS for centralized electrical rooms, typically with external VRLA battery cabinets; the Li90 packs integrated lithium modules into a compact cabinet that deploys closer to the load — supporting distributed and edge architectures with lower floor loading and simpler commissioning.
Choose the Li90 if you need
- Lithium battery technology with long service life
- A compact UPS footprint for space-constrained rooms
- Lower system weight for distributed or raised-floor deployments
- High operating-temperature capability (up to 50 °C)
- Reduced battery maintenance and replacement cost
Choose the Eaton 93PM if you need
- A centralized UPS installation in an electrical room
- Integration into existing Eaton infrastructure
- Modular scalability for large infrastructure deployments
Related Li90 comparisons
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