EcoFlow DELTA Pro Ultra X Whole-Home Backup Power
EcoFlow 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.
Get Through Any Outage
- 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.
- Plug your generator into DELTA Pro Ultra X for seamless backup – With the EcoFlow FlowMaster Generator Rectifier, you can charge while delivering up to 12kW output—no downtime, no compromise. Compatible with all major portable generators.
- 10kW Solar Surge – Take in 10kW solar input—enough to recharge 12kWh to 80% in just around 1 hour. Even during storm season, enjoy a full daily recharge and steady, unshakeable energy.
Smart & Reliable When It Matters Most
- Before the Storm: Get Alerts – Storm Guard Mode sends real-time alerts through the app and can automatically charge your DELTA Pro Ultra X to 100% using solar or grid power.
- 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.
- During the Storm: Extended Backup Time – With 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.
The Highest Safety Standards
- 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.
- 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.
- Dual BMS Protection – Local BMS – X-Guard® System: 44+ safeguards and comprehensive monitoring ensure 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.
- 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.
- 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).
EcoFlow DELTA Pro Ultra X Specifications
| Capacity | |
|---|---|
| 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 |
| Environment | |
| Noise Level | Noise level <30 dB at 0.5 m (ambient temperature 25 °C, 4 kW output) |
| IP Rating | IP54 |
| Battery Temperature | −4°F to 113°F (−20°C to 45°C) |
| Inverter Temperature | −4°F to 122°F (−20°C to 50°C) |
| Quick Look | |
| Net Weight (lb) | 50.5±0.2kg（111.3±0.44 lb） |
| Dimension (mm) | 675 × 475 × 230 mm (26.6 × 18.7 × 9.06 in.); Battery：660 × 455 × 204 mm (26 × 18 × 8 in.) |
| Warranty | 5 years |
| General | |
| Battery Chemistry | LFP |
| Screen | ✓ |
| Extra Battery | ✓ |
| Output | |
| AC Output | 12kW, 120/240V, 60Hz; Up to 36kW in 3 parallel units |
| UPS | <10ms standalone, <20ms with Smart Home Panel 3 |
| AC Outlets | NEMA 5-20 (x2) 120V 20A ; NEMA L14-30 (x1) 120/240V 30A ; NEMA 14-50 (x1) 120/240V 50A |
| Input | |
| Rated AC Input Power | 12kW,100/200-120/240V, 50A |
| PV Input | Total 10kW, 2 ports; 80-500V/15A, 5000W Max Each |
EcoFlow DELTA Pro Ultra X Key Features
- 100% Whole-Home Power Station: Delivers 12–36kW output and 12–180kWh capacity.
- Plug&Play design, installed in 7 Days. Save up to 80% on Time and Cost
- Smart & Reliable When It Matters Most, 20ms Auto switchover
- Save up to $6000/year, 3-Year ROI
- End-to-End System Protection, The Highest Safety Standard
*12kW/12kWh based on standard bundle (1 × EcoFlow DELTA Pro Ultra X Inverter + 2 × Smart Extra Batteries). Max 36 kW / 180 kWh with expansion. Actual performance varies by configuration.
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