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EcoFlow DELTA Pro Ultra X Whole-Home Backup Power

EcoFlow DELTA Pro Ultra X Whole-Home Backup Power
Save 23% Save 25%
$10,597.00
$10,597.00 - $24,493.00
$10,597.00
$7,999.00
$7,999.00 - $18,799.00
$7,999.00
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Bundle Options: 1 x Delta Pro Ultra X Inverter + 2 x Batteries

DELTA Pro Ultra X Whole-Home Backup Power

The EcoFlow DELTA Pro Ultra X is the ultimate whole-home backup power solution, designed to keep every appliance and essential circuit running seamlessly during any outage. Delivering a massive 12kW of output—expandable up to 36kW when multiple units are connected—it provides full 120V/240V service capable of powering your entire home, including heavy-duty systems like HVAC, refrigerators, and well pumps. With expandable storage from 6.1kWh to an impressive 180kWh, the Ultra X adapts to your energy needs, whether you’re looking for short-term emergency power or long-term off-grid reliability.

Setup is fast and flexible, featuring EcoFlow’s plug-and-play installation and smart home integration that can be ready in as little as seven days. The automatic transfer switch activates in less than 20 milliseconds, ensuring a smooth transition when the grid goes down. The system supports up to 10kW of solar input and is compatible with gas or propane generators for extended runtime, giving you complete control over how you power your home.


Engineered with advanced LFP battery technology, the DELTA Pro Ultra X offers safe, efficient, and long-lasting energy storage. A comprehensive Battery Management System (BMS) provides real-time monitoring, temperature regulation, and overcharge protection, while the weather-resistant enclosure makes it suitable for both indoor and outdoor installation. With intelligent load management and energy prioritization, the Ultra X ensures that your most critical systems stay powered longer without unnecessary energy waste.

Perfect for homeowners who want professional-grade backup power without the complexity of traditional systems, the EcoFlow DELTA Pro Ultra X combines high performance, scalability, and smart energy management in one future-ready solution. From everyday peace of mind to complete energy independence, it’s built to power your life—anytime, anywhere.

Inverter Includes: EcoFlow DELTA Pro Ultra X Inverter, EcoFlow PV Switch Box, EcoFlow AC Charging Cable, EcoFlow Battery Connection Cable (2.46ft), EcoFlow DELTA pro Ulta/Ultra X Portable Stand, 4 x EcoFlow Side Mount Casters. EcoFlow Solar Panel MC4 Disconnect Tool, User Manual

Battery Includes: EcoFlow Smart Extra Battery (Deltra Pro Ultra X), EcoFlow Battery Conneciton Cable (.65ft), and User Manual

DELTA Pro Ultra X Whole-Home Backup Power

EcoFlow DELTA Pro Ultra X Specs

  • Standard Capacity: 12.288kWh, 6144Wh x 2
  • Maximum Capacity with 1 inverter: 61.440kWh, 6144Wh x 10
  • Maximum Capacity with 3 inverters: 184.32kWh, 6144Wh x 30
  • AC Output: 12kW, 120/240V, 60Hz | Up to 36kW in 3 parallel units
  • Inverter Weight: 70.06 lbs
  • Battery Weight: 111.3 lbs
  • Inverter Dimensions: 26.6 × 18.7 × 9.06 in
  • Battery Dimensions: 26 × 18 × 8 in
  • Battery Chemistry: LFP
  • AC Outlets: NEMA 5-20 (x2) 120V 20A, NEMA L14-30 (x1) 120/240V 30A, NEMA 14-50 (x1) 120/240V 50A
  • Rated AC Input Power: 12kW,100/200-120/240V, 50A
  • PV Input: Total 10kW, 2 ports | 80-500V/15A, 5000W Max Each
  • IP Rating: IP54
  • Battery Temperature: −4°F to 113°F
  • Inverter Temperature: −4°F to 122°F

EcoFlow DELTA Pro Ultra X Features

  • High Power. High IQ.: DELTA Pro Ultra X scales from 12 to 36kW. With a new Adaptive Start algorithm, it intelligently identifies connected appliances and tailors startup for each, seamlessly handling surges up to 45kW and high-demand appliances like a 5-ton AC.
  • Smart Extreme-Weather Protection: Heats batteries in extreme cold for safe charging and longer runtime, while high-temp protection allows charging even at up to 45°C (113°F).
  • 12–180kWh Capacity, Power That Lasts : Start with 12kWh. Scale instantly to 180kWh with up to 30 plug-in expansion batteries, no tools, no hassle. Power grows with your needs. The wide-body inverter and battery are a stand-alone, off-grid unit, no wall mounting required. Its flexible design allows for faster, simpler approval than grid-tied systems. The exclusive quick-connect makes plug-and-play with the Smart Home Panel 3 or Smart Gateway effortless.
  • During the Storm: Extended Backup Time: With the Optional Smart Home Panel 3, tag appliances by priority in the app. Essentials stay powered while non-essentials are throttled—extending backup time by up to 42%. EcoFlow AI Assistant fine-tunes power use in real time, adapting to weather, usage, and solar input.
  • Durable battery pack: Perfectly matched cells ensure identical capacity, voltage, and resistance, minimizing wear and maximizing battery life. 24/7 Self-Maintenance: Automatic SOC balancing maximizes efficiency across the battery’s entire lifespan.
  • EV-grade full-tab cells: The first EV-grade full-tab cells deliver higher capacity with lower resistance, less heat, and longer-lasting performance. 25% More Efficient power flow (thanks to lower resistance: 1.5 mΩ vs. 2 mΩ) 25% Less Self-Heating
  • No Wasted Watts: With the EcoFlow Current Sense Transformer, every extra watt is redirected to your DELTA Pro Ultra X Smart Extra battery, never wasted or sold back to the grid for pennies.
  • 3-Level System Safety Architecture: Power Protection: 1.2M circuit samples/sec, millisecond-level anomaly detection for inverter and battery. Connection Monitoring: Intelligent cable and interface safeguards track heat, recognize faults, and allow instant shutdown for total electrical security. Load Isolation: Continuous voltage/current monitoring with triple-layer isolation. Faulty devices are cut off automatically while critical loads stay powered.
  • When the Storm Hits: Lights Stay On: EcoFlow DELTA Pro Ultra X, paired with the Smart Home Panel 3 or Smart Gateway, switches your whole home from grid to battery power in under 20ms—faster than a blink. The lights stay on, Wi-Fi stays up, and even the game console keeps running. Zero delays. Zero disruptions.
  • Dual BMS Protection: Local BMS – X-Guard® System: 44+ safeguards and comprehensive monitoring ensures all-around safety. Safeguards: overcharge/discharge, extreme temperatures, short circuits, component failures, and more Cloud BMS – Big Data Protection: 100+ anomaly detectors run 24/7, with instant alerts, local service response, and remote emergency support.

Your Satisfaction with EcoFlow is Guaranteed:

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