EcoFlow DELTA Pro Ultra X Power Station With Expansion Batteries

EcoFlow DELTA Pro Ultra X

Whole-Home Power. Unbound.

12–36kW Output

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.

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.

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.

Energy That Can Move With You

DIY Solar + Plug-and-Play Batteries

Smart & Reliable When It Matters Most

Auto-Recharging · 20ms Auto Switchover · 32 Circuits · Intelligent Control

Your 24/7 Money Saver

Here's a Typical Day of Savings

Day and night, the system intelligently shifts between solar, storage, and off-peak rates, maximizing every watt to get you the best deal. Here's what that might look like on a typical day of use.

Compatible with Existing Rooftop Solar

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.

The Highest Safety
Standards

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

What's in the box?

Specs

Standard Capacity

12.288kWh, 6144Wh x 2

Maximum Capacity with 1 inverter

61.440kWh, 6144Wh x 10

AC Output

12kW, 120/240V, 60Hz

Up to 36kW in 3 parallel units

Maximum Capacity with 3 inverters

184.32kWh, 6144Wh x 30

Net Weight (lb)

Inverter: 34.5±0.2kg（70.06±0.44 lb）

Battery: 50.5±0.2kg（111.3±0.44 lb）

Dimension (mm)

Inverter: 675 × 475 × 230 mm (26.6 × 18.7 × 9.06 in.)

Battery：660 × 455 × 204 mm (26 × 18 × 8 in.)

Battery Chemistry

LFP

Warranty

5 years

Screen

✓

Extra Battery

✓

AC Outlets

NEMA 5-20 (x2) 120V 20A

NEMA L14-30 (x1) 120/240V 30A

NEMA 14-50 (x1) 120/240V 50A

UPS

<10ms standalone, <20ms with Smart Home Panel 3

Rated AC Input Power

12kW,100/200-120/240V, 50A

DC Input

Total 10kW, 2 ports

80-500V/15A, 5000W Max Each

Noise Level

Noise level <30 dB at 0.5 m (ambient temperature 25 °C, 4 kW output)

IP Rating

IP54

Battery Temperature

Operating&Storage temp: −4°F to 113°F (−20°C to 45°C)

Inverter Temperature

Operating&Storage temp: −4°F to 122°F (−20°C to 50°C)