1U Lithium UPS with Remote Outlet Control: J90 and J90i
The Xtreme Power J90 is a compact 1U rackmount lithium UPS, 1 to 3 kVA at 120V (J90) or 208–240V (J90i), engineered for space-constrained, high-temperature environments where traditional UPS systems fall short. Powered by Lithium Iron Phosphate (LiFePO₄) batteries, it delivers long service life, enhanced safety, and reliable backup power for edge computing, industrial automation, medical carts, kiosks, and IT enclosures — commonly deployed in micro-edge and wall-mount rack environments.
Rated for continuous operation up to 50 °C (122 °F), the J90 provides up to 7 minutes of runtime at full load and supports optional remote outlet control, letting IT and operations teams reboot connected devices without a site visit. TAA-compliant models, optional extended runtime, and an industry-leading 6-year warranty make it ideal for government, healthcare, and mission-critical deployments. See UPS for Edge Data Centers.
Lithium UPS with remote outlet control & an industry-leading warranty
Every J90 pairs LiFePO₄ chemistry with an intelligent battery management system and optional network-based outlet control — built to run reliably where heat, space, and access are constrained.
Superior thermal stability, long cycle life, and enhanced safety versus traditional lithium-ion and VRLA.
Actively monitors voltage, temperature, and charge state to protect battery health and maximize lifespan.
Up to 15-year design life or 3,000–5,000 cycles, cutting replacement and maintenance costs.
Optional Web/SNMP card enables remote rebooting, outlet scheduling, and intelligent power management.
Designed for continuous performance up to 50 °C (122 °F) in harsh or poorly ventilated spaces.
Optional J90-EBP48 external battery modules for the J90-1.5kLiX and the 2kVA and 3kVA models (J90 & J90i).
Typical recharge in 4 hours on the 1 and 1.5 kVA models and 1 hour on the 2 and 3 kVA, minimizing exposure after an outage.
Lightweight, space-saving design for racks, cabinets, and enclosures.
Industry-leading coverage across the UPS and lithium battery in the USA and Canada, plus a $50,000 load protection policy on connected equipment.
Warranty is reduced to 2 years for applications operating above 40 °C (104 °F) and up to 50 °C (122 °F). Outside the USA and Canada, 2 years depot repair. Load protection applies in the USA and Canada, to the J90i when installed at 208 or 240V; registration required within 10 days of purchase.
Looking for an alternative to APC Smart-UPS Ultra 1U?
Many organizations evaluating 1U lithium UPS systems compare the J90 to APC Smart-UPS Ultra 1U models such as the SRTL3KRM1UWC and SRTL2KRM1UWC. The J90 platform is purpose-built for deployments where higher ambient temperatures, scalable runtime, and remote device recovery are critical — a strong fit for edge, industrial, and unattended installations.
- Continuous operation up to 50 °C (122 °F) for hot closets, cabinets, and enclosures
- LiFePO₄ chemistry for improved safety and cycle life
- Optional extended runtime via external battery module on 2kVA / 3kVA models
- Remote outlet control to reboot edge devices without dispatching a technician
- TAA-compliant models with an industry-leading 6-year warranty
J90 & J90i 1U lithium UPS models (TAA compliant)
J90 Lithium UPS
J90i Lithium UPS
The best 1U lithium UPS for your business
Compared to traditional 1U lithium and lead-acid UPS systems from major vendors, the Xtreme Power J90 platform stands out on the metrics that matter for edge and industrial power.
- Higher operating temperature capability for challenging environments
- Scalable runtime through external battery expansion
- Longer battery life with lower total cost of ownership
- Remote reboot capability for faster recovery at unattended sites
- Compact, lightweight design that fits where others can’t
- Procurement-ready TAA compliance for government and institutional use
Industrial, edge, commercial, medical & education
- Factory & industrial automation — PLCs, sensors, HMIs, and industrial PCs
- High-temperature installs — reliable in enclosures without active cooling
- Automation cabinets & control panels — clean 1U integration in tight systems
- Smart home & AV automation — automation hubs, AV racks, control systems
- Security & surveillance — uptime for NVRs, DVRs, and IP cameras
- ATMs & self-service kiosks — uninterrupted unattended operation
- Casino & gaming terminals — no disruption to gaming and POS systems
- Structured wiring panels — slim design fits structured wiring cabinets
- Medical & dental carts — lightweight design and rapid recharge for mobile equipment
- Healthcare & laboratory equipment — safe lithium chemistry for sensitive environments
- Education & classroom technology — reliable backup for AV, Wi-Fi, and IT
Need a short-depth lithium UPS?
For installations with limited rack depth, explore the Xtreme Power J60C — the world’s shortest-depth 600VA 1U lithium UPS.
- 8.5″ shallow depth for tight enclosures
- LiFePO₄ battery, up to 15-year life
- TAA compliant
- 5-year warranty and $25,000 load protection (USA and Canada)
1U lithium UPS: frequently asked questions
What is a 1U lithium UPS?
How do I choose a 1U UPS?
What runtime does the J90 provide?
Can runtime be extended on the J90 and J90i?
Can I remotely reboot connected devices?
How long does recharge take after an outage?
Will a 1U UPS fit a shallow or wall-mount rack?
Is the J90 TAA compliant?
What is the warranty, and is connected equipment covered?
Is the J90 an alternative to the APC Smart-UPS Ultra 1U?
Explore the full range of Xtreme Power lithium UPS systems for IT, industrial and commercial applications: single-phase lithium UPS.
Size the right 1U lithium UPS for your deployment
Our power specialists help you match capacity, runtime, temperature rating, and remote-management options to your edge, industrial, or medical application.