UPS battery backupsENERGY STAR certified
APC Smart-UPS SRT 1500VA 120V
1,500 VA / 1,350 W multi-mode double conversion UPS, model number SRT1500XLA.
Capacity
1,500 VA
1,350 W real power
Topology
Multi-Mode Double Conversion
Efficiency
91.6%
weighted, as tested
Runtime @ 50%
13 min
5 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 34.6 W, about $39 a year at 13¢/kWh just to stand ready.
- Maker
- APC
- Model
- APC Smart-UPS SRT 1500VA 120V
- Model number
- SRT1500XLA
- 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
- 5 min
- Battery warranty
- 2 yr
- Weighted efficiency
- 91.6%
- Efficiency at 25 / 50 / 75 / 100% load
- 87.9% / 91.3% / 91.9% / 91.6%
- Input power at no load
- 34.6 W
- Outlets
- 6 (6 battery + surge, 0 surge only)
- Rack mountable
- No
- Rated input voltage
- 120 V
- Rated output voltage
- 120 V
- Connections
- Serial Port,USB Port
- Size (H x W x D)
- 432 x 85 x 508 mm
- Maker take-back program
- Yes
- On the market since
- Jan 2019
- ENERGY STAR certified
- 14 Feb 2019
Certified under the same record
The maker lists these as the same machine or a variant of it: APC Smart-UPS SRT 1500VA 120V Factory Serviced, SRT1500XLAW, Std Exch APC Smart-UPS SRT 1500VA 120V, SRT1500XLAQ.
Source: ENERGY STAR certified uninterruptible power supplies dataset, US EPA, record 2333707, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the APC Smart-UPS SRT 1500VA 120V
Certified UPS units from other makers within 25% of its VA rating.
| Model | Capacity | Topology | Efficiency | Runtime @ 50% |
|---|---|---|---|---|
| CyberPower PR1500RTXL2U | 1,500 VA / 1,500 W | Line Interactive | 98.5% | 19 min |
| CyberPower CP1500AVRTa | 1,500 VA / 900 W | Line Interactive | 98.8% | 12 min |
| Delta RT-1.5K | 1,500 VA / 1,350 W | Double Conversion | 91.2% | 12 min |
| CyberPower OL1500RT JP | 1,500 VA / 1,350 W | Double Conversion | 90.9% | 11 min |
| CyberPower OL1500RTN JP | 1,500 VA / 1,350 W | Double Conversion | 90.9% | 11 min |
| CyberPower OL1500RTXL2U | 1,500 VA / 1,350 W | Double Conversion | 90.9% | 11 min |
APC
More APC UPS battery backups
| Model | Capacity | Topology | Efficiency | Runtime @ 50% |
|---|---|---|---|---|
| APC Back-UPS 350 | 350 VA / 210 W | Passive Standby | 98.0% | 20 min |
| APC Back-UPS 350VA X545 120V | 350 VA / 210 W | Passive Standby | 98.0% | 20 min |
| APC Back-UPS 400VA 120V Slim Flexible Mounting | 400 VA / 220 W | Passive Standby | 98.5% | 20 min |
| APC Back-UPS 500 (beige) | 500 VA / 300 W | Passive Standby | 98.6% | 15 min |
| APC Back-UPS 500 (black) | 500 VA / 300 W | Passive Standby | 98.6% | 15 min |
| APC Back-UPS 650VA 120V 8 NEMA outlets (4 surge) | 650 VA / 390 W | Passive Standby | 98.8% | 12 min |
| APC Back-UPS BE550G | 550 VA / 330 W | Passive Standby | 98.6% | 13 min |
| APC Power Saving Back-UPS Pro 1500 | 1,500 VA / 865 W | Line Interactive | 98.9% | 13 min |