P91 Li vs APC Easy UPS Online SRVSL
The P91 Li and APC Easy UPS Online SRVSL are both online double-conversion lithium UPS platforms for IT, edge, and distributed infrastructure. The P91 Li differentiates with LiFePO₄ chemistry, longer design life, higher efficiency, a 1500 VA option optimized for 120V/15A circuits, TAA compliance, and a 6-year warranty.
What the P91 Li brings
- LiFePO₄ chemistry for safety and longer lifecycle
- Up to 15-year design life vs 8–10 years typical
- Higher efficiency (up to 93% online / 98% ECO)
- A 1500 VA model optimized for 120V / 15A circuits
- TAA compliance for regulated procurement
- 6-year warranty on UPS and battery
Side-by-side specifications
| Specification | Xtreme Power P91 Li | APC Easy UPS Online SRVSL | Advantage |
|---|---|---|---|
| Topology | Online double-conversion | Online double-conversion | Equivalent topology |
| Battery chemistry | LiFePO₄ | Lithium-ion | P91 Li – LiFePO₄ safety & lifecycle |
| Battery design life | Up to 15 years | 8–10 years typical | P91 Li – longer lifecycle |
| Capacity range | 1500 / 2000 / 3000 VA | 1000 / 2000 / 3000 VA | P91 Li – 1500 VA / 15A option |
| Efficiency | Up to 93% online / 98% ECO | Up to 90% online / 96% ECO | P91 Li – higher efficiency |
| Runtime (full load) | 8–14 min | 9–10 min | Comparable runtime |
| Form factor | 2U rack / tower | Rack / tower | Comparable |
| TAA compliance | Yes | No | P91 Li – federal procurement |
| Warranty | 6 years (UPS + battery) | 3 years | P91 Li – longer warranty |
Specifications from Xtreme Power’s supplied P91 Li vs APC Easy UPS SRVSL comparison; confirm against current vendor documentation. APC SRVSL is a Schneider Electric platform.
Choosing between them
Both are online double-conversion lithium platforms. The P91 Li leads on chemistry, lifecycle, efficiency, capacity flexibility, TAA, and warranty; the APC SRVSL is positioned as a value online-lithium option aligned with APC ecosystems.
Choose the P91 Li if you need
- LiFePO₄ for longer lifecycle and improved safety
- Higher efficiency and reduced thermal output
- A 1500 VA option for 120V / 15A circuits
- TAA compliance and a 6-year warranty
The Easy UPS Online SRVSL may fit if you need
- Alignment with existing APC infrastructure
- Commercial IT environments
- A lower-cost online lithium platform
Related comparisons
Standardizing on lithium rack UPS?
Xtreme Power supports UPS selection, lifecycle planning, and distributed infrastructure design for lithium rack UPS across IT, networking, and regulated environments.