DEVICE 1
Source: ResMed AirSense 11 user guideThe cited guide lists 56.1 W typical and 73.2 W peak consumption. Humidifier, heated-tube, pressure, and machine settings affect real use.
Sizing calculator
How much backup power do you need?
Choose your devices, a backup window, and what you are planning for. Advanced electrical controls are optional.
POWER NEEDS
Example planning values — edit them to match your actual devices.
LOAD SUMMARY
- Devices selected
- 1
- Estimated energy
- 448 Wh
- After conversion losses
- 528 Wh
- Recommended rated capacity
- ~622 Wh+
- Maximum simultaneous load
- 56 W
Energy uses each row’s runtime, quantity, and duty cycle. Output sums checked devices; unchecked devices are treated as one-at-a-time loads. Startup replaces that device’s running draw during its start event.
YOUR ESTIMATED NEED
Battery size
~0.62 kWh+
Power output
~56 W+
Startup capability
No extra surge
See calculation details
- Device energy
- 448 Wh
- After 85% conversion efficiency
- 528 Wh
- After separate 15% reserve
- 622 Wh
RECOMMENDED MATCHES
How scoring works1
EcoFlow DELTA 3 Plus
1,024 Wh · 1,800 W · 27.6 lb
Match Score 85 / 100
Why this matches
- Meets your 56 W continuous running requirement.
- Provides enough battery capacity for your requested runtime.
- Includes UPS support for backup-power use.
Trade-off: It weighs 27.6 lb, so lighter eligible options may be easier to move.
Score breakdown
Capacity Fit 91Output Fit 60Use-case Fit 100Portability 75Feature Fit 90
Check price at manufacturer · EcoFlow USExact product listing at EcoFlow US — availability may change
Check Price on Amazon.comExact product listing at Amazon US — availability may change
2
Jackery HomePower 1000 Plus v2
1,024 Wh · 1,800 W · 23.8 lb
Match Score 85 / 100
Why this matches
- Meets your 56 W continuous running requirement.
- Provides enough battery capacity for your requested runtime.
- Includes UPS support for backup-power use.
Trade-off: Solar input is limited to 400 W.
Score breakdown
Capacity Fit 91Output Fit 60Use-case Fit 100Portability 82Feature Fit 86
Check price at manufacturer · Jackery USExact product listing at Jackery US — availability may change
Check Price on Amazon.comExact product listing at Amazon US — availability may change
3
Jackery Explorer 600 Plus
632 Wh · 800 W · 16.1 lb
Match Score 83 / 100
Why this matches
- Meets your 56 W continuous running requirement.
- Battery capacity is closely sized to your requested runtime.
- Includes UPS support for backup-power use.
Trade-off: Its battery capacity cannot be expanded later.
Score breakdown
Capacity Fit 100Output Fit 60Use-case Fit 71Portability 98Feature Fit 78
Check price at manufacturer · Jackery USExact product listing at Jackery US — availability may change
Search AmazonSearch results — exact listing not verified