DELTA Pro 3 Portable Power Station
All-in-One System Portable
EcoFlow's flagship LFP power station. 4.1 kWh, 4000 W AC (8000 W X-Boost), 2600 W solar input, modular up to 48 kWh via Smart Home Panel 2.
The Delta Pro 3 is the most thoroughly-engineered whole-home solar generator EcoFlow has shipped. Native 240 V split-phase, gen-input capable, 30 ms UPS switchover, and the Smart Home Panel 2 manages whole-circuit-level backup. 5-year warranty on the LFP cells.
Normalized price
$805 per kWh
$3,299 listed price
Methodology: lowest in-stock merchant price · normalized to nameplate
Whole-home backup with split-phase needs
The data
Specifications
Battery
| Capacity (nominal) | 4.096 kWh |
|---|---|
| Chemistry | LFP |
| Max expandable capacity | 48 kWh |
Output
| Continuous AC output | 4 kW |
|---|---|
| Surge output | 8 kW |
| UPS switchover | 30 ms |
| Outlets | 4× 120V AC, 1× 240V AC, 2× USB-A, 2× USB-C, 1× 12V DC, 1× Anderson |
Charging
| Solar input | 2600 W |
|---|---|
| Solar voltage range | 11–150 V |
| Solar charge time (max) | 95 min |
| AC input | 3.6 kW |
| AC charge time (max) | 80 min |
| Generator input | Yes |
Smart features & certifications
| App / Wi-Fi | Yes |
|---|---|
| App brand | EcoFlow |
| Certifications | UL 9540A, FCC |
Physical
| Weight | 51.5 kg |
|---|
Warranty
| Warranty | 5 years |
|---|
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Editorial
Best for, watch out for
Best for
- Whole-home backup with split-phase needs
- Owners who already have an EcoFlow ecosystem
- Off-grid cabins
Watch out for
- At 51 kg this is permanent-location gear
- Smart Home Panel 2 is sold separately
The market
Price history
Price history
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Common questions
What people ask about the DELTA Pro 3 Portable Power Station
What's the difference between DELTA Pro 3 Portable Power Station and a residential all-in-one inverter-battery?
EcoFlow DELTA Pro 3 Portable Power Station is a solar generator (portable power station) — designed to be picked up and moved, with built-in outlets and a solar input port. It's distinct from a residential AIO like the EcoFlow PowerOcean or Sol-Ark 12K, which is a permanent-install hybrid inverter wired into a home's main panel. Solar generators excel at backup-of-last-resort, off-grid trips, and powering specific high-priority devices. Residential AIOs are what you'd choose to back up the whole home.
What can EcoFlow DELTA Pro 3 Portable Power Station actually run, and for how long?
With 4000W continuous AC output, EcoFlow DELTA Pro 3 Portable Power Station can run anything that draws under that wattage continuously: refrigerators (~150W), LED lights, laptops, modems, CPAP machines, even small space heaters at low setting. Surge to 8000W means it can handle motor-startup spikes from compressors and small pumps. At 4.096kWh capacity, runtime depends on draw: a 60W draw runs 58 hours, a 600W draw runs 5.8 hours. (The 0.85 factor is realistic round-trip efficiency.)
How do I expand capacity?
EcoFlow DELTA Pro 3 Portable Power Station expands to 48kWh total via add-on battery packs from the same manufacturer. The expansion battery connects with a single high-current cable and the BMS treats the combined bank as one battery. Note that the inverter section's continuous AC output (4000W) doesn't increase with capacity — only runtime does.
Will this charge from the panels I already have?
EcoFlow DELTA Pro 3 Portable Power Station accepts 11–150V solar input up to 2600W. Most rigid 12V/24V portable panels work directly. Residential roof panels (typically 30–50V Voc) work too, but you'll need to wire panels in series to stay above the lower voltage threshold and below the upper. Confirm panel Voc + cold-temperature derating before connecting.
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