2000–2200 VA · 120 VAC · 1U Online Lithium UPS Comparison (LFP vs Li-ion)

J90-2kLiD vs APC Smart-UPS Ultra SRTL2K2RM1UNC

The Xtreme Power J90-2kLiD and APC Smart-UPS Ultra SRTL2K2RM1UNC are both 1U online double-conversion lithium UPS at 2 kVA, 120 V. The J90 uses lithium iron phosphate (LFP); the SRTL2K2 uses lithium-ion. The J90 leads on chemistry, battery life, temperature, outlet control, TAA, and warranty; the APC carries a slightly higher VA rating and bundles network management.

Xtreme Power J90-2kLiD 1U online lithium rack-mount UPS, front panel with color status display
Xtreme Power
J90-2kLiD
vs
APC
Smart-UPS Ultra SRTL2K2RM1UNC
Where the J90-2kLiD leads

What the J90-2kLiD brings

  • LiFePO₄ chemistry with longer cycle life and thermal stability
  • Up to 15-year battery life vs 8–10
  • 50 °C operation (derates above 40) vs 40 °C
  • Per-outlet control (the SRTL2K2 does not support it)
  • TAA compliance and a 6-year warranty
Side-by-side

Side-by-side specifications

SpecificationXtreme Power J90-2kLiDAPC Smart-UPS Ultra SRTL2K2Advantage / consideration
Battery chemistryLithium iron phosphate (LFP)Lithium-ionJ90 – longer cycle life, thermal stability
Battery lifeUp to 15 yr / 3,000–5,000 cycles8–10 yr typicalJ90 – fewer replacements
TopologyOnline double conversionOnline double conversionEqual zero-transfer protection
Capacity2000 VA / 1800 W2200 VA / 1870 WAPC – higher VA rating
High-temperature operationUp to 50 °C (derates above 40)Up to 40 °CJ90 – better in hot spaces
Outlet controlIndividually controllable (Web/SNMP)Not supportedJ90 – per-outlet remote reboot
Runtime optionsInternal + EBP (J90-EBP48)Internal + EBP (SRTL50RMBP1U)Scalable on both
Form factor / mounting1U rack or wall1U rack or wallEqual flexibility
Network / managementOptional (SNMP-2PV3)IntegratedAPC – network management bundled
TAA complianceYes (COO Taiwan)No (COO Philippines)J90 – federal procurement eligible
Warranty6-year UPS & battery5-year limitedJ90 – longer coverage

Specifications based on publicly available manufacturer documentation; confirm against current vendor data. The SRTL2K2 carries a slightly higher VA rating and bundles network management; the J90 derates above 40 C.

Where each fits

Choosing between them

Both are 1U online lithium UPS. The J90-2kLiD leads on LFP chemistry, battery life, temperature, outlet control, TAA, and warranty; the SRTL2K2 carries a slightly higher VA rating and includes network management as standard. Topology, form factor, and EBP scalability are equal.

Choose the J90-2kLiD if you need

  • LFP chemistry with extended service life and thermal safety
  • Operation up to 50 °C
  • Per-outlet control for remote reboot
  • TAA compliance and a 6-year warranty
  • Long service life with reduced maintenance

The APC Smart-UPS Ultra SRTL2K2 may fit if you need

  • A slightly higher VA rating in 1U
  • Integrated network management as standard
  • Alignment with existing APC Smart-UPS Ultra deployments
Questions

Frequently asked questions

Both are lithium, so what is the difference?

The J90 uses lithium iron phosphate (LFP) rated up to 15 years with better thermal stability and 50 C operation; the SRTL2K2 uses lithium-ion (8 to 10 years typical, rated to 40 C). The J90 also adds per-outlet control, TAA, and a 6-year warranty; the APC bundles network management and carries a slightly higher VA rating.

Which has more capacity?

The APC, at 2200 VA / 1870 W versus the J90’s 2000 VA / 1800 W. Size to your actual load.

Does the APC support per-outlet control?

No. The SRTL2K2 does not support individually controllable outlets; the J90 does with the Web/SNMP card, for remote reboot of specific loads.

Is the J90 TAA compliant?

Yes. The J90 is TAA compliant (country of origin Taiwan), making it eligible for U.S. federal and regulated procurement; the APC unit is not.

Comparing 1U online lithium UPS?

Xtreme Power supports sizing, runtime planning, and specification for edge IT, telecom, AV, and regulated environments.