J90i-1.5kLiD vs Eaton 5P1550GR
A compact 1U, 208/230V UPS suits edge IT, network closets, and distributed infrastructure where space, thermal limits, and uptime are critical. The Eaton 5P1550GR is a line-interactive unit with VRLA batteries; the Xtreme Power J90i-1.5kLiD is online double-conversion with long-life LiFePO₄. The J90i delivers 1350 W against 1100 W, about twice the runtime at 1100 W, outlet-level reboot, a lighter chassis, TAA compliance, and a 6-year warranty.
What the J90i-1.5kLiD brings
- Online double-conversion instead of line-interactive
- 1350 W against 1100 W in the same 1U
- About 2× runtime at 1100 W
- LiFePO₄ chemistry with dramatically longer service life
- Operation up to 50 °C for hot IDF and edge environments
- Optional outlet-level control with Web/SNMP card
- 15 lbs lighter and 1.7 in shallower
- TAA compliance and a 6-year warranty
J90i-1.5kLiD vs 5P1550GR: 1500VA 208/230V feature comparison
| Feature | Xtreme Power J90i-1.5kLiD | Eaton 5P1550GR | Advantage |
|---|---|---|---|
| UPS topology | Online double-conversion | Line-interactive | J90i — zero transfer time |
| Battery chemistry | LiFePO₄ | VRLA | J90i — longer, safer |
| Battery life | Up to 15 years / 3,000–5,000 cycles | 3–5 years typical | J90i — lower replacement cost |
| Capacity (VA / W) | 1500 VA / 1350 W | 1550 VA / 1100 W | J90i — 250 W more real power |
| Runtime (full load) | ~7 min @ 1350 W | ~4 min @ 1100 W | J90i — longer at a higher load |
| Runtime @ 1100 W | ~8.5 min | ~4 min | J90i — about 2× runtime |
| Extended runtime | No — external packs on 2/3kVA only | No | Equal |
| Outlets | 4 × IEC C13 | 6 × IEC C13 | Eaton — two more outlets |
| Outlet control | Individually controllable (Web/SNMP card) | No individual outlet control | J90i — outlet-level reboot |
| Rack height | 1U | 1U | Equal |
| Rack depth / weight | 20.1 in / 27.7 lbs | 21.8 in / 42.7 lbs | J90i — shallower & lighter |
| Operating temperature | Up to 50 °C (122 °F) | Up to 40 °C (104 °F) | J90i — hot edge spaces |
| Safety certification | CE | UL 1778, cUL, CE | Eaton — UL listed |
| TAA compliance | Yes | No | J90i — federal eligible |
| Warranty | 6-year UPS & battery (USA and Canada) | 3-year | J90i — longer coverage |
Eaton figures from Eaton and distributor listings, checked October 2026; verify against current Eaton documentation. J90i capacity derates at 208V (see the J90i user manual). Eaton also offers a lithium version, the 5P1550GR-L (line-interactive, 5-year warranty).
Choosing between them
The J90i-1.5kLiD suits edge IT and network closets with limited cooling, 208/230V deployments needing online protection and more runtime in 1U, and government or regulated procurement requiring TAA compliance and long service life. The 5P1550GR suits buyers who need six outlets, a UL-listed 208/230V unit, or alignment with existing Eaton infrastructure.
Choose the J90i-1.5kLiD if you need
- True online double-conversion protection in 1U
- More real power and about twice the runtime at 1100 W
- Long-life LiFePO₄ batteries and operation up to 50 °C
- Outlet-level reboot for remote troubleshooting
- TAA compliance and a 6-year warranty
The 5P1550GR may fit if you need
- Six outlets in 1U
- A UL-listed 208/230V unit
- Line-interactive protection for cost-sensitive deployments
- Alignment with existing Eaton infrastructure
J90i-1.5kLiD vs 5P1550GR: common questions
What is the Xtreme Power alternative to the Eaton 5P1550GR?
The J90i-1.5kLiD. Both are 1.5 kVA, 208/230V, 1U rack UPS systems. The J90i-1.5kLiD is online double-conversion rated 1350 W with LiFePO₄ batteries; the 5P1550GR is line-interactive rated 1100 W with VRLA batteries.
How does runtime compare?
At 1100 W, the 5P1550GR’s full load, it runs about 4 minutes and the J90i-1.5kLiD about 8.5 minutes. At its own full load of 1350 W, the J90i-1.5kLiD runs about 7 minutes.
What is the difference between online and line-interactive?
An online UPS runs the load through its inverter all the time, so there is no transfer when power fails and the output is regulated continuously. A line-interactive UPS passes utility power through with voltage correction and switches to battery on an outage.
Can I reboot a single device remotely?
With the J90i-1.5kLiD, yes: with the optional Web/SNMP card each of its four outlets can be switched individually. The 5P1550GR does not offer individual outlet control.
How do depth and weight compare?
The J90i-1.5kLiD is 20.1 in deep and 27.7 lbs versus 21.8 in and 42.7 lbs for the 5P1550GR.
Is the J90i-1.5kLiD UL listed?
No. The J90i is CE marked for 208/230V and international installations. The Eaton 5P1550GR is UL and cUL listed. For 120V installations, the UL-listed J90 is the Xtreme Power equivalent.
Is either TAA compliant?
The J90i-1.5kLiD is TAA compliant. The Eaton 5P1550GR is not.
What warranty comes with each?
The J90i-1.5kLiD carries a 6-year warranty on UPS and battery in the USA and Canada, and 2 years depot elsewhere. The 5P1550GR carries a 3-year warranty. Eaton’s lithium 5P1550GR-L carries 5 years but remains line-interactive.
Compare the J90i to other 208/230V platforms
Plan with confidence
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