Online Lithium UPS Comparison for IT, Edge, and Regulated Deployments
The Xtreme Power P91 Li from Xtreme Power Conversion and the APC Schneider Easy UPS Online Lithium-ion SRVSL RT from APC are both online double conversion lithium UPS systems designed to protect critical IT and infrastructure loads.
While both platforms provide continuous clean power, the P91 Li is engineered with a stronger focus on long term lifecycle value, safety, efficiency, size flexibility, and government compliance. Key differences appear in battery chemistry, available capacity options, efficiency, warranty coverage, and eligibility for regulated procurement.
This comparison highlights where each platform fits best and why many organizations select the P91 Li for demanding and long life deployments.
Learn more about the Xtreme Power P91 Li https://xpcc.com/products/p91li-1-3kva/
Key Differentiators at a Glance
- Lithium iron phosphate battery chemistry with integrated battery management
- Unique 1500VA size optimized for 15A and 120V circuits
- Higher operating efficiency and reduced thermal load
- Longer internal runtime on select models
- TAA compliance for government and regulated procurement
- Six-year warranty covering UPS electronics and batteries
P91 Li vs APC SRVSL RT Feature Comparison
| Feature | Xtreme Power P91 Li | APC Easy UPS Online Lithium-ion SRVSL RT | P91 Li Advantage |
| Battery Technology | Lithium Iron Phosphate with integrated BMS | Lithium-ion chemistry not specified | Improved safety, thermal stability, and service life |
| Available Capacities | 1500VA / 1350W 2000VA / 1800W 3000VA / 2700W |
1000VA / 900W 2000VA / 1800W 3000VA / 2700W |
Exclusive 1500VA option ideal for 15A circuits |
| UPS Topology | Online double conversion | Online double conversion | Equivalent continuous power protection |
| Efficiency | Up to 98 percent in ECO mode Up to 93 percent in online mode |
Up to 96 percent in ECO mode Up to 90 percent in online mode |
Lower power loss and reduced cooling requirements |
| Battery Recharge Time | Approximately 1.5 hours to 90 percent | Approximately 1.5 hours to 90 percent | Comparable recharge performance |
| Battery Runtime at Full Load | Approximately 8 to 14 minutes depending on model | Approximately 9 to 10 minutes | Longer runtime on select P91 Li models |
| Form Factor | 2U rack or tower | Rack or tower | Comparable mounting flexibility |
| TAA Compliance | Yes | No | Eligible for U.S. federal and public sector procurement |
| Warranty | Six year warranty covering UPS and batteries | Three year warranty | Double the warranty coverage and lower lifecycle cost |
Where the P91 Li Excels
- IT and edge deployments requiring long life lithium UPS platforms
- Environments prioritizing battery safety and thermal stability
- Installations constrained to 15A or 120V branch circuits
- Applications where higher efficiency reduces heat and cooling costs
- Government and public sector projects requiring TAA compliance
- Long term deployments focused on total cost of ownership
When APC Easy UPS SRVSL RT May Be a Fit
- Commercial IT environments standardized on APC platforms
- Deployments without TAA or regulatory requirements
Who Should Choose Which
Choose Xtreme Power P91 Li if you need:
- Online UPS protection with lithium iron phosphate batteries
- Higher efficiency and reduced thermal output
- A 1500VA size option optimized for common branch circuits
- Eligibility for federal and public sector procurement
- Long term warranty coverage and lower maintenance costs
Choose APC Easy UPS Online Lithium-ion SRVSL RT if you need:
- An online lithium UPS within an APC standardized environment
- A solution focused on commercial rather than regulated deployments
Download the Printable Comparison
Download the Xtreme Power P91 Li vs APC Schneider Easy UPS Online Lithium-ion SRVSL RT Comparison PDF
https://xpcc.com/wp-content/uploads/Xtreme-P91-Li-APC-Schneider-Easy-UPS-Online-Lithium-ion-SRVSL-RT-Comparison-1.pdf
(Ideal for procurement reviews, specification packages, and internal approvals)
Plan With Confidence
Xtreme Power supports early specification, design in, and lifecycle planning for IT, networking, edge, and regulated environments.
(800) 582 4524
sales@xpcc.com