EcoFlow Smart energy storage with microinverter 2-1 STREAM Ultra (EFSTREAMULTRA800W-EU)

Smart energy storage with microinverter 2-in-1 EcoFlow STREAM Ultra
The EcoFlow STREAM Ultra is an advanced energy storage system integrated with an inverter that allows you to take full advantage of the potential of your photovoltaic installation. The device combines robust battery capacity (2 kWh), high efficiency, and intelligent energy management to provide energy independence at home. Thanks to its quiet operation, wide temperature range, and IP65 protection class, it will work well in both indoor and outdoor environments.


Robust design and high resistance
The device has dimensions of 255 × 284 × 458 mm and a weight of 23.1 kg, which, given its capabilities, makes it extremely mobile. The IP65-rated housing provides full dustproof and waterproof protection, allowing for safe use both indoors and outdoors. Overvoltage categories DC II and AC III guarantee safe operation even in harsh conditions.


Long-life battery
The EcoFlow Stream Ultra uses a lithium-iron-phosphate (LFP - LiFePO₄) battery with a capacity of 2 kWh and a nominal voltage of 19.2 V. It is designed for a long life—offering more than 6,000 duty cycles, which translates into years of reliable use. Thanks to natural fanless cooling, the unit operates quietly and trouble-free.


Efficient charging system with 4 MPPT
Stream Ultra supports four independent MPPT (Maximum Power Point Tracking) inputs to maximize the use of energy from photovoltaic sources. Each channel supports up to 500 watts, for a total maximum input power of 2,000 watts (60V/14A). The MPPT voltage range is 15-60V, and the maximum short-circuit current is 20A, ensuring compatibility with a wide range of solar panels.


Energy independence and various output modes
With an AC input of s230 V/50 Hz, Stream Ultra generates a rated power of up to 800 W, with a max. output current of 3.48 A. The max. input power is 2,300 W, and the power factor is adjustable from 1 to 0.8. For AC output, the power supply to devices is at a continuous power of 1,200 W (1,200 VA), with a max. current of 5.22 A and an input power of 800 W. In Bypass Mode, the maximum output current is 10 A, ensuring reliability even with higher loads. On the other hand, for applications requiring more power, the system offers Parallel Connection Mode with up to 2,300 W. This arrangement provides greater flexibility and allows the solution to be scaled for more extensive installations.


Performance in all conditions
The EcoFlow Stream Ultra operates seamlessly in temperatures from -20°C to 55°C, with a humidity range of 5%-95%. It can be safely stored at temperatures from -20°C to 55°C, and its design allows it to operate at altitudes up to 4,000 meters above sea level, making it an ideal choice for applications in harsh locations—from high mountainous terrain to hot deserts.


Smart management and connectivity
The device offers Bluetooth and WLAN connectivity, and full control and management are possible via the dedicated EcoFlow app. This gives the user access to real-time data and the ability to remotely monitor and optimize system performance.





General


Manufacturer: EcoFlow
Model: STREAM Ultra
Dimensions: 255 × 284 × 458 mm
Weight: 23.1 kg
Typology: Insulated
Protection class (IP): IP65
Contamination category: PD3
Overvoltage category (OVC): DC: II, AC: III
Application: Outdoor / indoor
Cooling method: Natural convection (no fans)


Battery


Rated capacity: 2 kWh
Rated voltage: 19.2 V
Number of cycles: 6000+
Cell type: LFP (lithium-iron-phosphate)


PV input (DC)


Number of MPPT: 4
MPPT voltage range: 15 V-6ly 60 V
Max input power: 2000 W (500 W per MPPT)
Max input voltage: 60 V
Max. input current: 14 A
Max. input short-circuit current: 20 A


Grid output (AC Grid Terminal)


Voltage and frequency: 230 V~, 50 Hz
Rated power: 800 W
Rated current: 3.48 A
Max. input current: 10 A
Max input power: 2300 W
Power factor: 1 (0.8 to -0.8)


AC output


Voltage and frequency: 230 V~, 50 Hz
Max. output power: 1200 W
Rated output current: 5.22 A
Max. output current (bypass mode): 10 A
Max input power: 800 W
Max. input current: 3.48 A
Power factor: 1 (0.8 to -0.8)


Parallel output (AC Parallel Terminal)


Voltage and frequency: 230 V~, 50 Hz
Max. output power: 2300 W
Max. output current: 10 A
Max. input current: 10 A
Max input power: 2300 W
Power factor: 1 (0.8 to -0.8)


Operating environment


Operating altitude: ≤ 4000 m above sea level
Operating temperature: -20°C to 55°C
Storage temperature: -20°C to 55°C
Relative humidity: 5%-95%


Features and connectivity


Connectivity: WLAN, Bluetooth
Management: EcoFlow application