Online Lithium UPS Comparison for IT, Edge, and Regulated Deployments
The Xtreme Power P91-1.5kLi from Xtreme Power Conversion and the Eaton 9PX1500RT-L from Eaton are both 1.5 kVA online double conversion UPS systems designed to protect critical IT, network, and edge infrastructure.
While both platforms use lithium iron phosphate battery technology and deliver equal real power output, the P91-1.5kLi is engineered for higher temperature operation, faster battery recovery, longer service life, and eligibility for federal procurement. These differences are especially important in edge, industrial, and long life deployments.
Key Differentiators at a Glance
- Lithium iron phosphate battery chemistry with long cycle life
- Higher ambient temperature tolerance
- Faster battery recharge for improved availability
- Longer expected battery service life
- TAA compliance for government and public sector procurement
- Six year warranty covering UPS and battery
1.5 kVA Feature Comparison
| Feature | Xtreme Power P91-1.5kLi | Eaton 9PX1500RT-L | P91-1.5kLi Advantage |
| Battery Chemistry | Lithium Iron Phosphate | Lithium Iron Phosphate | Comparable advanced battery technology |
| Capacity | 1500VA / 1350W | 1500VA / 1350W | Equal real power output |
| UPS Topology | Online double conversion | Online double conversion | Equivalent continuous power protection |
| High Temperature Operation | Operates up to 50 C with derating above 40 C | Operates up to 40 C | Better suited for hot environments |
| Battery Life Expectancy | Up to 15 years or 3000 to 5000 cycles | Approximately 8 to 10 years | Nearly double service life |
| Battery Recharge Time | Approximately 1.5 hours to 90 percent | Approximately 3 hours to 90 percent | Faster recovery after outages |
| Battery Runtime at Full Load | Approximately 11 minutes | Approximately 11 minutes | Comparable runtime performance |
| Form Factor | Rack or tower | Rack or tower | Equivalent mounting flexibility |
| TAA Compliance | Yes | No | Eligible for government and public sector use |
| Warranty | Six year UPS and battery | Five year UPS and battery | Longer coverage and lower lifecycle cost |
Where the P91-1.5kLi Excels
- Edge and distributed IT environments with elevated temperatures
- Deployments requiring fast battery recovery after outages
- Long life installations focused on total cost of ownership
- Government and public sector projects requiring TAA compliance
- Applications where battery replacement is costly or disruptive
When the Eaton 9PX1500RT-L May Be a Fit
- Commercial IT environments standardized on Eaton platforms
- Climate controlled data rooms with predictable maintenance access
- Deployments prioritizing platform consistency over lifecycle value
Who Should Choose Which
Choose Xtreme Power P91-1.5kLi if you need:
- Online UPS protection with long life lithium iron phosphate batteries
- Operation in higher ambient temperature environments
- Faster battery recharge to improve availability
- Eligibility for federal and public sector procurement
- Longer warranty coverage and lower lifetime ownership cost
Choose Eaton 9PX1500RT-L if you need:
- An online lithium UPS within an Eaton standardized environment
- A solution for controlled temperature commercial IT spaces
Download the Printable Comparison
Download the Xtreme Power P91-1.5kLi vs Eaton 9PX1500RT-L Comparison PDF
https://xpcc.com/wp-content/uploads/Xtreme-P91-1.5KLi-Eaton-9PX1500RT-L-Comparison.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