EcoFlow STREAM Ultra X

The EcoFlow STREAM Ultra X is an energy storage station with a 3.84 kWh battery, built for domestic solar self-consumption. It stores the solar surplus produced during the day and returns it to your appliances when production drops. It plugs into an AC socket and installs without an electrician.

Why this product

• 3.84 kWh of storage — expandable to 23 kWh with additional STREAM series units.
• 1,200 W AC output — runs higher-draw appliances, with peaks up to 2,300 W (10 A).
• 4 MPPTs and 2,000 W of solar input — 500 W per input, tracked independently.
• 6,000 cycles to 70% of capacity — sized for daily charging and discharging.
• IP65 and -20 °C to 55 °C — works outdoors, with automatic battery heating at 5 °C or below.

Specifications

• Capacity: 3.84 kWh (expandable to 23 kWh)
• Cycle life: 6,000 cycles to 70% of capacity
• AC output: 1,200 W
• Grid-tied AC output: 800 W
• Maximum device power supported: 2,300 W (10 A)
• AC charging input: 1,200 W (10 A)
• Solar input: 2,000 W (500 W × 4)
• PV input voltage: 60 V DC maximum
• MPPT: 4
• Operating temperature: -20 °C to 55 °C
• Battery heating: automatic low-temperature charging activation (≤ 5 °C)
• Connectivity: Wi-Fi and Bluetooth
• Protection rating: IP65
• Acoustic noise: below 30 dB
• Dimensions: 420 × 294 × 460 mm
• Net weight: 38.8 kg
• Warranty: 10 years
• Reference: EFSTREAMULTRAX800W-EU
• EAN: 4895251652933

What is in the box

• 1 × EcoFlow STREAM Ultra X

The supplier does not detail the remaining accessories included.

Compatibility

It connects in parallel to another STREAM series unit or to a STREAM extra battery through a parallel cable, expanding capacity and power. Several STREAM units on the same Wi-Fi network form a distributed solar network and keep running over the local network without cloud access. It also accepts third-party devices using the Tibber, Matter and Shelly protocols.