700–1500 VA · 120VAC · Line-Interactive Tower UPS Comparison

S71-1000 vs APC Back-UPS Pro BR1000MS

The S71-1000 and APC Back-UPS Pro BR1000MS are 1000 VA / 600 W line-interactive UPS systems with AVR, LCD, and VRLA batteries. The S71-1000 differentiates with faster transfer, more battery-backed outlets, faster recharge, a more compact and lighter chassis, a touch LCD, and TAA compliance; the APC outputs a pure sine wave on battery.

Xtreme Power
S71-1000
vs
APC
Back-UPS Pro BR1000MS
Where the S71-1000 leads

What the S71-1000 brings

  • Faster typical transfer time (4 ms vs 6–10 ms)
  • More battery-backed outlets (6 vs 5)
  • Faster recharge (4–6 h vs 8 h)
  • Shorter depth, lower height, and lighter
  • Touch LCD interface
  • TAA-compliant for government procurement
Side-by-side

Side-by-side specifications

SpecificationXtreme Power S71-1000APC Back-UPS Pro BR1000MSAdvantage
Capacity1000 VA / 600 W1000 VA / 600 WEqual capacity
TopologyLine-interactive with AVRLine-interactive with AVREquivalent
Output waveform (battery)Simulated sinePure sine wave (battery)APC – pure sine on battery
Transfer time (typical)4 ms6–10 ms typicalS71 – faster transfer
Receptacles(6) all battery-backed(10) total: 5 battery + 5 surgeS71 – more battery-backed (6 vs 5)
Recharge4–6 h to 90%8 h typicalS71 – faster recharge
Dimensions (W×D×H)5.1 × 12.6 × 7.1 in3.9 × 14.5 × 10.2 inS71 – shorter depth, lower height
Weight18 lb22.5 lbS71 – lighter
DisplayTouch LCDLCDS71 – touch interface
Data-line protectionRJ45 surge suppressionYesEquivalent
TAA complianceYesNoS71 – government procurement
Warranty3 years3 years typicalEqual

Specifications from Xtreme Power’s S71-1000 vs APC BR1000MS comparison; confirm against current vendor documentation. The APC outputs a pure sine wave on battery, preferable for some sensitive loads.

Where each fits

Choosing between them

The S71-1000 leads on transfer, battery-backed outlets, recharge, footprint, display, and TAA; the APC counters with a pure sine-wave output on battery and more total outlets.

Choose the S71-1000 if you need

  • More battery-backed outlets (6 vs 5)
  • Faster transfer and recharge
  • A shorter, lighter chassis with touch LCD
  • TAA compliance for procurement

The Back-UPS Pro BR1000MS may fit if you need

  • A pure sine-wave output on battery for sensitive loads
  • More total outlets (10, incl. surge-only)
  • An existing APC standard

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