P91Li Lithium UPS – Online Double-Conversion with 15 Year Battery Life
1500VA-3000VA
120VAC
Reliable power protection for schools, AV systems, retail POS, and network infrastructure. Features long-life lithium Iron Phosphate (LFP) batteries rated up to 15 years, and 6-year warranty.
1500 VA – 3000 VA | 120 VAC | TAA Compliant | 6-Year Warranty
Reliable, TAA-compliant lithium UPS delivering long-life power protection for schools, AV systems, retail POS, and IT networks. Featuring LiFePO₄ batteries rated up to 15 years and a 6-year warranty, the Xtreme Power P91Li dramatically reduces maintenance and total cost of ownership compared to lead-acid UPS systems. The P91Li UPS provides true online double-conversion protection with the durability and efficiency of lithium-iron-phosphate (LiFePO₄) batteries. Ideal for IT racks, AV systems, classrooms, hospitality, and broadcast applications, it delivers long internal runtimes in a compact 2U rack/tower design—no external battery packs required. Available in 1.5 kVA, 2 kVA, and 3 kVA models, with a short-depth 1000 VA model coming soon, the P91Li combines TAA compliance, high-temperature performance, and 15-year battery life for reliable, maintenance-free backup power.
Key Features & Benefits
- TAA-Compliant UPS – Manufactured in a TAA-compliant country for U.S. government and public-sector projects.
- Short-Depth P91-1kLi (Coming Soon) – Ideal for shallow network racks, wall-mount cabinets, and compact IT spaces.
- Long-Life LFP Batteries – Up to 15-year design life and 3,000–5,000 cycles for lower total cost of ownership.
- High-Temperature Operation – Rated to 50 °C with warranty adjusting above 40 °C continuous operation.
- True Online Double Conversion – Provides continuous, isolated power for sensitive IT and AV equipment.
- Compact 2U Rack/Tower Chassis – Fits standard racks or tower installations with minimal space impact.
- Extended Internal Runtime – Long backup times without the need for external battery cabinets.
- Lightweight & Space Efficient – Smaller and lighter than traditional VRLA-based UPS systems.
- 6-Year Standard Warranty – Full coverage for electronics and batteries in the U.S. and Canada.
Product Snapshot
| Feature | Specification |
| Capacities | 1500 VA, 2000 VA, 3000 VA (1000 VA short-depth coming soon) |
| Topology | Online Double Conversion |
| Form Factor | 2U Rack / Tower Convertible |
| Battery Type | Lithium Iron Phosphate (LiFePO₄) |
| Battery Life | Up to 15 years / 3,000–5,000 cycles |
| Runtime | Long internal runtime (non-scalable) |
| Operating Temperature | Up to 50 °C (derating above 40 °C) |
| Compliance | TAA Compliant, UL, cUL, RoHS |
| Warranty | 6 years (2 years above 40 °C) – USA & Canada |
Applications
The P91Li UPS is ideal for industries requiring long-life, compact, TAA-compliant backup power:
- Pro AV / Video Walls – Power AV racks and displays with clean sine-wave output. See UPS for Pro AV.
- Home Automation / CEDIA – Maintain smart-home and theater systems. See UPS for Home Automation.
- Schools & Education – Protect classrooms, labs, and IT closets with long-life lithium batteries. See UPS for Schools.
- VoIP & Networking – Ensure communication continuity for routers and phone systems. See UPS for VoIP Phone Systems.
- Hospitality & Media – Power guest networks, studios, and control rooms. See Hospitality UPS Systems and UPS for Media Broadcast.
Tip: Pair the SPDU Smart Power Distribution Unit with the P91Li to add switched and metered-by-outlet control, enabling remote reboot, sequencing, and per-outlet monitoring for rack and AV installations.
Comparing the P91 Li to Other UPS Platforms
Organizations evaluating the P91 Li often compare it to APC, Eaton, and Vertiv online lithium UPS systems. Key decision factors typically include power topology, usable watt capacity, battery lifecycle, temperature tolerance, runtime performance, rack depth, warranty coverage, and eligibility for government or regulated procurement.
To see how the Xtreme Power P91 Li compares side by side to leading alternatives across these criteria, visit the P91 Li comparison hub.
View all P91 Li UPS comparisons
https://xpcc.com/p91-li-ups-comparisons/
Related Products
- SPDU Smart PDU – Switched & metered-by-outlet PDU for remote reboot and monitoring.
- XBDM Maintenance Bypass Module – Service or replace the UPS without power interruption.
- J90 UPS – 1U lithium UPS with high-temperature operation and switched receptacles.
- J60C UPS – Short-depth lithium UPS for shallow racks.
- P91 1–3 kVA UPS – VRLA battery version for standard runtime and budget-sensitive projects.
Contact Us Today
The Xtreme Power P91Li UPS combines TAA compliance, LiFePO₄ durability, and true online double conversion to deliver up to 15 years of battery life with a 6-year warranty.
Ideal for IT, AV, education, retail, and government applications requiring long-term, high-temperature reliability.
Contact Us | View All Products | UPS Selector
(800) 582-4524
| MODEL NUMBER | P91-1.5kLi | P91-2kLi | P91-3kLi | |
| CAPACITY | Power rating | 1500VA (1350W) | 2000VA (1800W) | 3000VA (2700W) |
| INPUT | Voltage/frequency | 55–150VAC* / 50/60Hz auto-sensing | ||
| OUTPUT | Voltage | 100**/110/115/120/127 VAC selectable | ||
| Waveform | Pure sine wave: <=2% THD (linear load), <=4% THD (non-linear load | |||
| Frequency | 50/60Hz ± 0.1Hz | |||
| Efficiency | Up to 98% ECO mode or 94% online mode | |||
| Overload capacity | Online mode: 110% & ≤ 130% for 5 min; > 130% & ≤140% for 30 sec; >140% for 1.5 sec | |||
| BATTERY | Cell type | LFP26650 2600 mAh | ||
| Cell configuration | 15S2P | 15S2P x2 | 24S1P x 3 | |
| Charger voltage | 52.5VDC | 84VDC | ||
| Charger current | 2/4/6/8A (4A default), adjustable through LCD | |||
| Recharge time | 1.5 hours to 90% charge | |||
| PHYSICAL | Dimensions (W x D x H)*** | 17.2 x 15.1 x 3.5 | 17.2 x 19 x 3.5 | 17.2 x 23.8 x 3.5 |
| Weight (lbs) | 25.6 | 33.5 | 45.2 | |
| Line cord | 6 ft, 5–15P | 6 ft, 5–20P | 6 ft, L5–30P | |
| Receptacles | (8) NEMA 5-15R | (8) NEMA 5–15/20R | L5–30R+(6)5–15/20R | |
| ENVIRONMENT | Operating temperature | 32–104°F (0–40°C) | ||
| Altitude | 11,500 ft above sea level | |||
| APPROVALS | UL, cUL, RoHS, FCC Class A, battery packs comply to UL1973, UN38.3, TAA compliant | |||
| WARRANTY | 6 years electronics, 6 years battery warranty (USA and Canada) | |||
| COMMUNICATIONS INTERFACE | RS-232, USB, EPO, intelligent slot for optional cards (Web/SNMP, Relay/dry contact, Modbus) | |||
| INCLUDED IN BOX | ViewPower software, front brackets, tower pedestals, user manual | |||
| AVAILABLE OPTIONS | Bypass distribution (XBDM), power distribution (XPDU), 4-post rail kit, 2-post shelf kit, wall mount bracket | |||