P91-1500 vs Eaton 9PX1500RT
The P91-1500 and Eaton 9PX1500RT are both true online double-conversion VRLA UPS delivering continuous sine-wave output for critical IT, network, AV, and edge infrastructure. The P91-1500 differentiates with higher usable watts, much faster recharge, greater runtime scalability, lighter weight, and full TAA compliance.
What the P91-1500 brings
- Higher usable watts (1450 W vs 1350 W)
- Much faster recharge (<3 h vs 8 h)
- Greater runtime scalability (up to 7 packs vs 4)
- Programmable 1–8 A charger vs a fixed charger
- Shallower and lighter; better high-altitude rating; TAA
Side-by-side specifications
| Specification | Xtreme Power P91-1500 | Eaton 9PX1500RT | Advantage |
|---|---|---|---|
| Capacity | 1500 VA / 1450 W | 1500 VA / 1350 W | P91 – higher usable watts |
| Topology | Online double-conversion | Online double-conversion | Equal topology |
| Battery chemistry | VRLA | VRLA | Equal |
| Recharge time | <3 hours | 8 hours | P91 – much faster recharge |
| Extended runtime | Up to 7 external packs | Up to 4 external packs | P91 – greater scalability |
| Charger | Programmable high-capacity (1–8 A) | Fixed charger | P91 – faster with large strings |
| Dimensions (W×D×H) | 17.2 × 16.1 × 3.4 in | 17.2 × 17.7 × 3.4 in | P91 – shallower depth |
| Weight | 34.2 lb | 42.5 lb | P91 – lighter |
| Operating altitude (40°C) | Derates above 6,500 ft | Derates above 4,921 ft | P91 – better at altitude |
| TAA compliance | Yes | No | P91 – federal procurement |
| Warranty | 3 years | 3 years | Equal coverage |
Specifications from Xtreme Power’s supplied P91-1500 vs Eaton 9PX1500RT comparison; confirm against current vendor documentation. Both are online double-conversion VRLA platforms.
Choosing between them
Both deliver equivalent online VRLA protection at equal warranty. The P91-1500 leads on usable watts, recharge speed, runtime scalability, charger, weight, altitude, and TAA; the Eaton fits Eaton-standardized, shorter-runtime environments.
Choose the P91-1500 if you need
- Long-runtime installs needing fast recharge and scalable batteries
- Edge, IDF, and MDF deployments with limited rack depth
- Federally funded and TAA-restricted procurement
- Higher-elevation or warmer operating sites
The 9PX1500RT may fit if you need
- Existing Eaton-standardized UPS environments
- Modest / standard runtime requirements
- Well-cooled, low-altitude IT rooms where TAA isn’t required
Related comparisons
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