P91-2kLi vs Eaton 9PX2000RT-L
The P91-2kLi and Eaton 9PX2000RT-L are both 2 kVA online double-conversion UPS on LiFePO₄ batteries with integrated BMS and equal real power. The P91-2kLi adds higher-temperature operation, faster recharge, slightly longer runtime, longer service life, and TAA eligibility.
What the P91-2kLi brings
- Operation up to 50 °C vs 40 °C
- Nearly double battery service life (up to 15 yr)
- Faster recharge (1.5 h vs 3 h to 90%)
- Slightly longer full-load runtime (14 vs 13 min)
- TAA compliance and a 6-year warranty
Side-by-side specifications
| Specification | Xtreme Power P91-2kLi | Eaton 9PX2000RT-L | Advantage |
|---|---|---|---|
| Battery technology | LiFePO₄ with integrated BMS | LiFePO₄ with integrated BMS | Comparable technology |
| Battery life | Up to 15 yr / 3,000–5,000 cycles | 8–10 years | P91 – nearly double service life |
| Capacity | 2000 VA / 1800 W | 2000 VA / 1800 W | Equal real power |
| Topology | Online double-conversion | Online double-conversion | Equivalent protection |
| High-temperature operation | Up to 50°C, derates above 40°C | Rated to 40°C | P91 – higher ambient |
| Recharge | 1.5 h to 90% | 3 h to 90% | P91 – faster recharge |
| Runtime (full load) | 14 min | 13 min | P91 – slightly longer |
| TAA compliance | Yes | No | P91 – federal procurement |
| Warranty | 6-year UPS & battery | 5-year UPS & battery | P91 – longer coverage |
Specifications from Xtreme Power’s supplied P91-2kLi vs Eaton 9PX2000RT-L comparison; confirm against current vendor documentation. Both are online double-conversion LiFePO4 platforms.
Choosing between them
Matched on power, topology, and chemistry. The P91-2kLi leads on temperature, recharge, runtime, service life, TAA, and warranty.
Choose the P91-2kLi if you need
- Mission-critical IT and network environments
- Edge / distributed deployments with elevated temperatures
- Fast battery recharge for availability
- Government / public-sector projects requiring TAA
The 9PX2000RT-L may fit if you need
- Commercial IT standardized on Eaton platforms
- Climate-controlled rooms with predictable maintenance
- Familiar Eaton architecture with standard lithium life
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