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EcoFlow DELTA Pro Ultra Inverter + 1* Battery + 1* 400W Solar Panel Solar Generator Kits EcoFlow

EcoFlow DELTA Pro Ultra Inverter + 1* Battery + 1* 400W Solar Panel

BY: EcoFlow | SKU: EFDPU-BP-400w-US Availability: In Stock
$7,297.00
$5,399.00
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EcoFlow DELTA Pro Ultra Inverter + 1 x Battery + 1 x 400W Solar Panel

Experience next-level whole-home backup power with the EcoFlow DELTA Pro Ultra Kit. This all-in-one system includes a powerful DELTA Pro Ultra Inverter, one high-capacity battery, and a 400W solar panel—giving you a scalable, smart, and solar-ready power solution for grid outages, off-grid setups, or sustainable energy independence. With support for 240V split-phase, up to 21.6kWh capacity (expandable), and ultra-fast solar + AC charging, this bundle is built to handle nearly any situation.

EcoFlow DELTA Pro Ultra Inverter + 1 x Battery + 1 x 400W Solar Panel Features

All-in-One Power Solution – Includes the inverter, one battery, and a 400W solar panel—everything you need to get started with clean, reliable power.

Massive Expandable Power – Start with 6kWh and expand up to 21.6kWh with additional batteries to meet your long-term energy needs.

240V Split-Phase Support – Power high-demand appliances like dryers, central air, and well pumps with whole-home backup capabilities.

Industry-Leading Solar Input – Harness the sun with a max solar input of 5600W and get a charge in as fast as 2.7 hours using EcoFlow’s solar panels.

Smart Energy Control – Monitor, optimize, and manage your power usage using the EcoFlow app, offering real-time data and advanced settings.

Quiet & Emission-Free Backup – Unlike gas generators, the DELTA Pro Ultra runs silently, with no fumes, no fuel, and no maintenance.

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What's Included

Everything you need is included with your product.

  • 1 x DELTA Pro Ultra Inverter (70 lbs)
  • 1 x Portable Stand + 4 x Wheels
  • 1 x Assembly/Disassembly Tool
  • 1 x Solar Low-PV Charging Cable
  • 1 x AC Charging Cable C-20
  • 1 x DELTA Pro Ultra Battery (116 lbs)
  • 1 x Inverter/Battery Connection Cable
  • 1 x Safety Guide
  • 1 x Quick-Start Guide
  • 1 x Warranty Card

EcoFlow DELTA Pro Ultra Specifications

DELTA Pro Ultra Inverter General Specifications

Category Specification
Model EFYJ751-PCS-US
Net Weight 31.7 kg | 69.9 lbs
Dimensions 690 × 481 × 214 mm | 27.2 × 18.9 × 8.4 in
Wi-Fi Frequency range: 2,412-2,462MHz | 2,422-2,452MHz , Maximum output power: 0.3597W
Bluetooth Frequency range: 2,402-2,480MHz, Maximum output power: 0.0109W
4G Modem Port Supported with the EcoFlow 4G Dongle
Screen Supported
Grid-Tied Unsupported
Maximum Operating Altitude 3000m | 9842.5ft
IP Protection Rating IP54
Noise Level <30 dB
Uninterrupted Power Supply (UPS) Backup UPS <20 ms; online UPS 0 ms
Operating Temperature Discharging temperature: −20°C to 45°C (−4°F to 113°F) | Charging temperature: −20°C to 45°C (−4°F to 113°F) | Storage temperature: −20°C to 45°C (−4°F to 113°F) | Optimum temperature: −20°C to 45°C(68°C to 86°F))

DELTA Pro Ultra Inverter Output Specifications

Category Specification
AC Output Discharging: Pure sine, 7200W Max, 120V/240V~ 60Hz | Bypass: 100-120V~30A total, 50Hz/60Hz, 3600W Max
AC Output Ports (20A) 4 x AC Output Sockets: 120V, 20A Max Per Port
AC Output Ports (30A) 1 x AC Output Socket: 120V, 30A Max | 1 x NEMA L14-30 120/240V Split Phase Port
USB Ports 2 x USB-A: 5V⎓2.4A, 12W max per port, total 24W | 2 x USB-C: 5/9/12/15/20V⎓5A, 100W max per port, total 200W
DC Output 1 x DC Port: 12.6V⎓30A, 378W Max
Anderson DC Port 1 x Anderson DC Output Port: 12.6V, 30A, 378W Max
Input/Output Port (Infinity Port) 1 x Power Input/Output Port: 100-120V, 30A; Serves as both an AC input (for charging) and output (for connecting to the Smart Home Panel 2 or EV Charger)

DELTA Pro Ultra Inverter Input Specifications

Category Specification
AC Input Charging: 100-120V~15A; 200-240V~12.5A, 50/60Hz | Bypass: 100-120V~15A, 50/60Hz (duration < 3hrs when the current exceeds 12A)
Power Input/Output (Infinity Port) 100-120~30A; 200-240V~30A, 50/60Hz
High Photovoltaic (PV) Input 80-450V⎓15A max, 4,000W max
Low Photovoltaic (PV) Input 30-150V⎓15A max, 1,600W max
Standby Power Consumption <12W

DELTA Pro Ultra Battery Specifications

Category Specification
Model EFYJ751-BP
Net Weight 52.7 kg | 116.4 lbs
Dimensions 660 × 455 × 204 mm | 26 × 18 × 8 in
Capacity 102.4V⎓60A, 6,144Wh
Cell Material LFP
Cycle Life The battery maintains 80%+ SOH (state of health) after 3,500 cycles at 0.5C/0.5C at 25°C (77°F)
Protection Type Overvoltage protection, overload protection, overtemperature protection, short circuit protection, low temperature protection, low voltage protection, overcurrent protection
Operating Temperature Discharging temp: −20°C to 45°C (−4°F to 113°F) | Charging temp: −20°C to 45°C (−4°F to 113°F) | Storage temp: −20°C to 45°C (−4°F to 113°F) (optimum: −20°C to 45°C(68°C to 86°F))
Maximum Operating Altitude 3000m | 9842.5ft
IP Protection Rating IP54

EcoFlow 400W Portable Solar Panel Specifications

Category Specification
Rated Power 400W (±3%)
Open Circuit Voltage 48V (Vmp 41V)
Short Circuit Current 11A (Imp 9.8A)
Cell Type Monocrystalline Silicone
Efficiency 23%
Dimensions 42.0 x 94.1 x 1.0 in | 106.8 x 239.0 x .4 cm
Connector Type MC4 Solar Connector
Weight (Solar Panel) 35.3 lbs | 16.0 kg
Weight (Solar Panel With Kickstand Case) 41.9 lbs | 19 kg

Frequently-Asked Questions

Can this system power my entire home?

Yes! The DELTA Pro Ultra supports 240V split-phase, meaning you can power whole-home systems including HVAC, dryers, and well pumps. You may need an electrician to integrate it with your home panel.

Is the battery expandable?

Absolutely. You can expand the system to up to 21.6kWh using additional EcoFlow batteries. It’s scalable depending on your needs.

Can I use other solar panels with this system?

Yes. The system accepts up to 5600W of solar input and supports third-party panels with compatible voltage and connectors.

Does it work during a blackout?

Yes. The DELTA Pro Ultra instantly switches to battery mode during an outage, ensuring uninterrupted power.

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