Measure
A sump pump's motor startup can briefly draw two to three times its steady running watts -- confirm both continuous and surge output clear this, not just the nameplate running wattage
PORTABLE POWER USE CASE
Portable power for sump pump
Adjust the workload, backup duration, conversion efficiency, reserve and surge requirement before comparing products.
Pricing checked 2026-07-15· verify decisive terms directly
NU
Research profileIndependent dataRuntime and capacity estimator
Demonstration dataMINIMUM MODELLED CAPACITY1,308 Wh
✓ 2200 W output or higher
✓ 1.0–1.2 hours from an equal-size rated battery
✓ 1 kWh class
✓ Size solar from realistic daily input, not panel nameplate alone
Compare portable power stations →BEFORE YOU COMPARE
Assumptions that matter
Usable energy
Model a realistic cumulative pump-run time for the storm or outage rather than 24 hours of continuous full-load running, then extend the backup-days field to plan for a multi-day event
Output
Model 80–90% usable energy rather than assuming the full nominal capacity is available -- a basement sump pump is a property-protection load, so undersizing risks the pump failing to start exactly when flooding risk is highest
Compatibility
Confirm the pump's plug type, voltage and any float-switch or backup-pump wiring are compatible with the station's AC outlet, and test the full setup before a real storm rather than during one
Suitable current starting points
discontinued
DELTA 3 1500
Current higher-capacity DELTA 3-series option for longer backup windows.
- Capacity
- 1,536Wh
- Output
- 1,800W
- Solar
- 500W
- Weight
- 16.5kg
C1000
Fast-charging 1kWh-class station with strong solar input for its size.
- Capacity
- 1,056Wh
- Output
- 1,800W
- Solar
- 600W
- Weight
- 12.9kg
Explorer 1000 v2
Relatively light 1kWh-class station with 1,500W continuous output.
- Capacity
- 1,070Wh
- Output
- 1,500W
- Solar
- 400W
- Weight
- 10.8kg
Explorer 2000 Plus
Expandable high-output class for larger backup loads.
- Capacity
- 2,042Wh
- Output
- 3,000W
- Solar
- 1400W
- Weight
- 27.9kg
Potentially undersized
RIVER 3 Plus
Its capacity or output is below the conservative default model. Recalculate with measured loads.
Elite 30 V2
Its capacity or output is below the conservative default model. Recalculate with measured loads.
C300
Its capacity or output is below the conservative default model. Recalculate with measured loads.
TECHNICAL AND SAFETY GUIDANCE
What changes the result
Battery chemistry
LiFePO₄ commonly prioritizes cycle life and thermal stability. Manufacturer cycle claims use controlled conditions.
Solar charging
Panel nameplate watts are not daily energy. Allow for shade, angle, heat, cable loss and controller limits.
Country voltage
Buy the regional output version and confirm appliance voltage, plug shape, frequency and warranty geography.
Air travel
Passenger limits make nearly every station in this catalogue unsuitable for aircraft carriage.
UPS claims
Transfer time and waveform matter. Do not treat a consumer EPS as medical or zero-transfer infrastructure.
Safe use
Keep ventilation clear, avoid moisture and damaged cables, and follow manufacturer temperature and grounding instructions.
SUMP PUMP POWER QUESTIONS
Frequently asked questions
No. It is a planning range based on entered watts and efficiency. Temperature, standby draw, power factor and battery controls change real results.