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UPS battery backupsENERGY STAR certified

APC Smart-UPS Online 1500VA RM NC TAA

1,500 VA / 1,350 W multi-mode double conversion UPS, model number SRT1500RMXLA-NCUS.

Capacity

1,500 VA

1,350 W real power

Topology

Multi-Mode Double Conversion

Efficiency

91.6%

weighted, as tested

Runtime @ 50%

13 min

4 min at full load

A UPS has two ratings and the lower one is the limit. This unit is rated 1,500 VA and 1,350 W, so the equipment plugged into its battery outlets should draw no more than about 1,080 W if you want the usual 20% headroom. How to size a UPS.

Its weighted efficiency of 91.6% compares with a median of 98.7% across 153 certified units within 25% of its capacity. With nothing plugged in it still draws 35.2 W, about $40 a year at 13¢/kWh just to stand ready.

Maker
APC
Model
Smart-UPS Online 1500VA RM NC TAA
Model number
SRT1500RMXLA-NCUS
Apparent power rating
1,500 VA
Real power rating
1,350 W
Power factor
0.90
Topology
Multi-Mode Double Conversion
Intended use
Commercial
Battery
Valve Regulated Lead-acid Battery
Runtime at 50% load
13 min
Runtime at 100% load
4 min
Battery warranty
2 yr
Weighted efficiency
91.6%
Efficiency at 25 / 50 / 75 / 100% load
87.6% / 91.1% / 91.9% / 91.7%
Input power at no load
35.2 W
Outlets
6 (6 battery + surge, 0 surge only)
Rack mountable
Yes, 2U
Rated input voltage
120 V
Rated output voltage
120 V
Connections
Serial Port,Ethernet,USB Port
Size (H x W x D)
85 x 432 x 508 mm
Maker take-back program
Yes
On the market since
Jan 2024
ENERGY STAR certified
31 Oct 2023

Source: ENERGY STAR certified uninterruptible power supplies dataset, US EPA, record 2698722, data build 2026-09-29. Figures are as the maker certified them. How we use this data.

Other makers

Machines comparable to the Smart-UPS Online 1500VA RM NC TAA

Certified UPS units from other makers within 25% of its VA rating.

ModelCapacityTopologyEfficiencyRuntime @ 50%
CyberPower PR1500RTXL2U1,500 VA / 1,500 WLine Interactive98.5%19 min
CyberPower CP1500AVRTa1,500 VA / 900 WLine Interactive98.8%12 min
Delta RT-1.5K1,500 VA / 1,350 WDouble Conversion91.2%12 min
CyberPower OL1500RT JP1,500 VA / 1,350 WDouble Conversion90.9%11 min
CyberPower OL1500RTN JP1,500 VA / 1,350 WDouble Conversion90.9%11 min
CyberPower OL1500RTXL2U1,500 VA / 1,350 WDouble Conversion90.9%11 min

APC

More APC UPS battery backups

ModelCapacityTopologyEfficiencyRuntime @ 50%
APC Back-UPS 350350 VA / 210 WPassive Standby98.0%20 min
APC Back-UPS 350VA X545 120V350 VA / 210 WPassive Standby98.0%20 min
APC Back-UPS 400VA 120V Slim Flexible Mounting400 VA / 220 WPassive Standby98.5%20 min
APC Back-UPS 500 (beige)500 VA / 300 WPassive Standby98.6%15 min
APC Back-UPS 500 (black)500 VA / 300 WPassive Standby98.6%15 min
APC Back-UPS 650VA 120V 8 NEMA outlets (4 surge)650 VA / 390 WPassive Standby98.8%12 min
APC Back-UPS BE550G550 VA / 330 WPassive Standby98.6%13 min
APC Power Saving Back-UPS Pro 15001,500 VA / 865 WLine Interactive98.9%13 min

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