CyberPower UPS, ENERGY STAR certified
CyberPower CP425G3
425 VA / 255 W passive standby UPS.
Capacity
425 VA
255 W real power
Topology
Passive Standby
Efficiency
97.9%
weighted, as tested
Runtime @ 50%
8 min
2 min at full load
A UPS has two ratings and the lower one is the limit. This unit is rated 425 VA and 255 W, so the equipment plugged into its battery outlets should draw no more than about 204 W if you want the usual 20% headroom. How to size a UPS.
Its weighted efficiency of 97.9% compares with a median of 98.2% across 38 certified units within 25% of its capacity. With nothing plugged in it still draws 2.8 W, about $3.19 a year at 13¢/kWh just to stand ready.
- Maker
- CyberPower
- Model
- CP425G3
- Apparent power rating
- 425 VA
- Real power rating
- 255 W
- Power factor
- 0.60
- Topology
- Passive Standby
- Intended use
- Consumer
- Battery
- Valve Regulated Lead-acid Battery
- Runtime at 50% load
- 8 min
- Runtime at 100% load
- 2 min
- Battery warranty
- 3 yr
- Weighted efficiency
- 97.9%
- Efficiency at 25 / 50 / 75 / 100% load
- 95.8% / 97.9% / 98.5% / 98.7%
- Input power at no load
- 2.8 W
- Rack mountable
- No
- Rated input voltage
- 120 V
- Rated output voltage
- 120 V
- Connections
- None
- Size (H x W x D)
- 81 x 180 x 109 mm
- Maker take-back program
- Yes
- On the market since
- Jan 2019
- ENERGY STAR certified
- 6 Dec 2018
Certified under the same record
The maker lists these as the same machine or a variant of it: CP425G3TAA.
Source: ENERGY STAR certified uninterruptible power supplies dataset, US EPA, record 2330846, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the CP425G3
Certified UPS units from other makers within 25% of its VA rating.
| Model | Capacity | Topology | Efficiency | Runtime @ 50% |
|---|---|---|---|---|
| Amazon Basics ABST400 | 400 VA / 255 W | Line Interactive | 98.3% | 7 min |
| APC Back-UPS 400VA 120V Slim Flexible Mounting | 400 VA / 220 W | Passive Standby | 98.5% | 20 min |
| Tripp Lite AGBC5758 | 450 VA / 450 W | Passive Standby | 98.2% | 10 min |
| Minuteman EN450G | 450 VA / 250 W | Passive Standby | 97.9% | 10 min |
| Tripp Lite AG-0394 | 450 VA / 255 W | Passive Standby | 98.7% | 7 min |
| Tripp Lite AG-0683 | 450 VA / 240 W | Line Interactive | 99.0% | 5 min |
CyberPower
More CyberPower UPS battery backups
| Model | Capacity | Topology | Efficiency | Runtime @ 50% |
|---|---|---|---|---|
| AVRG1000LCD | 1,000 VA / 530 W | Line Interactive | 98.6% | 10 min |
| BL1250U2 | 1,200 VA / 800 W | Line Interactive | 98.7% | 11 min |
| BL1450U | 1,200 VA / 800 W | Line Interactive | 98.7% | 11 min |
| BRG1000AVRLCD | 1,000 VA / 600 W | Line Interactive | 98.5% | 9 min |
| BRG1500AVRLCD | 1,500 VA / 900 W | Line Interactive | 98.6% | 12 min |
| BRG1500AVRLCD2 | 1,500 VA / 900 W | Line Interactive | 98.8% | 11 min |
| CP1000PFCLCD | 1,000 VA / 600 W | Line Interactive | 98.8% | 9 min |
| CP1000PFCLCDa | 1,000 VA / 600 W | Line Interactive | 99.3% | 8 min |