UPS battery backupsENERGY STAR certified
Minuteman EN900LGU
900 VA / 500 W passive standby UPS.
Capacity
900 VA
500 W real power
Topology
Passive Standby
Efficiency
98.3%
weighted, as tested
Runtime @ 50%
11 min
3 min at full load
A UPS has two ratings and the lower one is the limit. This unit is rated 900 VA and 500 W, so the equipment plugged into its battery outlets should draw no more than about 400 W if you want the usual 20% headroom. How to size a UPS.
Its weighted efficiency of 98.3% compares with a median of 98.6% across 179 certified units within 25% of its capacity.
- Maker
- Minuteman
- Model
- EN900LGU
- Apparent power rating
- 900 VA
- Real power rating
- 500 W
- Power factor
- 0.56
- Topology
- Passive Standby
- Intended use
- Consumer, Commercial, Data Center
- Battery
- Valve Regulated Lead-acid Battery
- Runtime at 50% load
- 11 min
- Runtime at 100% load
- 3 min
- Battery warranty
- 2 yr
- Weighted efficiency
- 98.3%
- Efficiency at 25 / 50 / 75 / 100% load
- 97.4% / 98.4% / 98.6% / 98.6%
- Outlets
- 10 (5 battery + surge, 5 surge only)
- Rack mountable
- No
- Rated input voltage
- 120 V
- Rated output voltage
- 120 V
- Connections
- USB Port
- Size (H x W x D)
- 103 x 198 x 324 mm
- Maker take-back program
- Yes
- On the market since
- Jan 2022
- ENERGY STAR certified
- 14 Oct 2021
Source: ENERGY STAR certified uninterruptible power supplies dataset, US EPA, record 2386087, data build 2026-09-29. Figures are as the maker certified them. How we use this data.
Other makers
Machines comparable to the EN900LGU
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 |
| APC BVN900M1 | 900 VA / 480 W | Passive Standby | 99.0% | 10 min |
| APC BVN900M1-CA | 900 VA / 480 W | Passive Standby | 99.0% | 10 min |
Minuteman
More Minuteman UPS battery backups
| Model | Capacity | Topology | Efficiency | Runtime @ 50% |
|---|---|---|---|---|
| EC1000RTXL2U | 1,000 VA / 900 W | Double Conversion | 90.9% | 10 min |
| EC1500RTXL2U | 1,500 VA / 1,350 W | Double Conversion | 91.1% | 10 min |
| EC2000RTXL2U | 2,000 VA / 1,800 W | Double Conversion | 91.7% | 10 min |
| EC3000RTXL2U | 3,000 VA / 2,700 W | Double Conversion | 91.9% | 10 min |
| ED10KRT | 10 kVA / 9,000 W | Double Conversion | 93.9% | 7 min |
| ED5KRT | 5,000 VA / 4,500 W | Double Conversion | 93.8% | 11 min |
| ED6KRT | 6,000 VA / 5,400 W | Double Conversion | 93.9% | 7 min |
| ED8KRT | 8,000 VA / 7,200 W | Double Conversion | 94.1% | 11 min |