UPS battery backupsENERGY STAR certified
APC BE900G3
900 VA / 540 W passive standby UPS.
APC Back-UPS 900VA/540W Floor/Wall Mount 120V 8x NEMA 5-15R outlets USB Type A + C Ports
Capacity
900 VA
540 W real power
Topology
Passive Standby
Efficiency
99.0%
weighted, as tested
Runtime @ 50%
10 min
2 min at full load
A UPS has two ratings and the lower one is the limit. This unit is rated 900 VA and 540 W, so the equipment plugged into its battery outlets should draw no more than about 432 W if you want the usual 20% headroom. How to size a UPS.
Its weighted efficiency of 99.0% compares with a median of 98.6% across 179 certified units within 25% of its capacity. With nothing plugged in it still draws 2.0 W, about $2.22 a year at 13¢/kWh just to stand ready.
- Maker
- APC
- Model
- BE900G3
- Description
- APC Back-UPS 900VA/540W Floor/Wall Mount 120V 8x NEMA 5-15R outlets USB Type A + C Ports
- Apparent power rating
- 900 VA
- Real power rating
- 540 W
- Power factor
- 0.60
- Topology
- Passive Standby
- Intended use
- Consumer
- Battery
- Valve Regulated Lead-acid Battery
- Runtime at 50% load
- 10 min
- Runtime at 100% load
- 2 min
- Battery warranty
- 3 yr
- Weighted efficiency
- 99.0%
- Efficiency at 25 / 50 / 75 / 100% load
- 98.5% / 99.1% / 99.2% / 99.2%
- Input power at no load
- 2.0 W
- Outlets
- 8 (6 battery + surge, 2 surge only)
- Rack mountable
- No
- Rated input voltage
- 120 V
- Rated output voltage
- 120 V
- Connections
- USB Port
- Size (H x W x D)
- 90 x 167 x 318 mm
- Maker take-back program
- Yes
- On the market since
- Jan 2024
- ENERGY STAR certified
- 15 Jan 2024
Certified under the same record
The maker lists these as the same machine or a variant of it: APC Back-UPS 900VA/540W Floor/Wall Mount 120V 8x NEMA 5-15R outlets USB Type A + C Ports Factory Serviced, BE900G3W, Std Exch APC Back-UPS 900VA/540W Floor/Wall Mount 120V 8x NEMA 5-15R outlets USB Type A + C Ports, BE900G3Q.
Source: ENERGY STAR certified uninterruptible power supplies dataset, US EPA, record 3360892, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the BE900G3
Certified UPS units from other makers within 25% of its VA rating.
| Model | Capacity | Topology | Efficiency | Runtime @ 50% |
|---|---|---|---|---|
| CyberPower ST900U | 900 VA / 500 W | Passive Standby | 98.4% | 8 min |
| Tripp Lite AG-0317 | 900 VA / 480 W | Passive Standby | 99.5% | 8 min |
| Tripp Lite AG-0318 | 900 VA / 480 W | Passive Standby | 99.3% | 8 min |
| Tripp Lite AGPS8294 | 900 VA / 900 W | Multi-Mode Double Conversion | 92.6% | 12 min |
| CyberPower CP1200AVR2 | 900 VA / 560 W | Line Interactive | 98.7% | 11 min |
| Tripp Lite AG-0309 | 900 VA / 480 W | Line Interactive | 99.3% | 3 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 |