Description
EcoFlow STREAM Ultra X Microinverter Energy Storage System (3.84 kWh)
EcoFlow STREAM Ultra X is an advanced 3.84 kWh energy storage system with an integrated microinverter. Combined with photovoltaic panels, it allows you to make the most of the electricity generated by the sun and save on your bills. It features four MPPT inputs with a total power of 2,000 watts and can handle appliances up to 2,300 watts. Furthermore, it is very easy to install. As part of the STREAM ecosystem, the device first powers the home with energy from the photovoltaic panels, then draws energy stored in the battery, and only then draws from the grid. This translates into greater independence and complete energy security, even in emergency situations.

Powerful 2300 watts
EcoFlow STREAM Ultra X can power devices up to 2,300 watts in two ways. With a single unit, the system combines solar energy (up to 1,200 watts) with grid power (up to 1,100 watts) to fully meet your energy needs, ideal for powering high-energy-draining appliances every day without the risk of overloading the system. By connecting two units in parallel, you can get 2,300 watts of power output entirely from solar energy, reducing grid draw to zero and maximizing self-consumption.

Scalable up to 23 kWh: a solution for years to come.
A base capacity of 3.84 kWh is enough to power your most important devices in the dark or in an emergency. But if you need more capacity, you can expand the system up to six units, obtaining 23 kWh of energy. It's a flexible solution that grows with your needs, from a small backup system to a complete whole-home power system.

Make the most of solar energy: 4 MPPT and 2,000 watts of PV input power.
The STREAM Ultra X features four MPPT inputs and supports solar panel input power of up to 2,000 W (4 × 500 W). Furthermore, thanks to advanced low-light technology, the battery stores energy even in weak sunlight. This solution allows for up to an additional hour of production per day, even in cloudy weather and at dawn. More energy during the day means less grid consumption and a faster return on investment!

Solar system throughout the house
EcoFlow STREAM Ultra X allows you to create a decentralized solar grid. Simply plug the units into power outlets in different locations: one near the photovoltaic panels and the others near energy-intensive appliances. STREAM automatically connects all the modules into a single intelligent system and distributes energy where it's needed most, such as the kitchen, laundry room, or living room, without the need for manual configuration.

Intelligent management and automation
With the EcoFlow app and OASIS, you have full control of your energy consumption in real time, from viewing flows to setting priorities and schedules. The AI mode analyzes weather forecasts, dynamic rates, and your consumption profile, automatically charging the battery during low-cost hours and discharging it when energy is most expensive. You can also create your own rules and automation scenarios for your smart home, such as starting your electric car charging when solar generation is at its peak. Note: Some features of the EcoFlow app require a premium subscription.

Smart home integration
STREAM Ultra X works with EcoFlow smart meters and sockets, even communicating offline. The system automatically adjusts the power supplied to your home network and prevents energy waste. Furthermore, thanks to compatibility with the most popular protocols (Shelly, Matter, Tibber), you have full control of your entire home from a single app.

Safety and reliability for years
LFP cells offer approximately 6,000 charge cycles at 70% capacity, resulting in trouble-free use for up to 15 years. The device's casing is flame-retardant, and a multi-level protection system protects against overcharging and overheating, among other things. Rapid voltage drop (<0.7 seconds) ensures installation safety, and global certifications (ISO, TRUSTe, NIST) confirm compliance with the highest data privacy and protection standards.

weather resistance
The IP65 rating protects the device from rain and dust, and the self-heating function allows it to operate smoothly even in temperatures as low as -20°C. As a result, the STREAM Ultra X can be installed both indoors and outdoors, ensuring reliable operation all year round!

Quiet operation and thoughtful design.
With a noise level of less than 30 dB, the device won't disturb your daily life. You can easily install it in the living room or bedroom! Furthermore, its casing is made of low-impact materials, making it environmentally friendly. Finally, installation is quick and easy (plug-and-play), and the interchangeable front panels, available separately in two colors (natural wood and elegant black), allow you to match the energy storage system to your decor.

Included
- EcoFlow STREAM Ultra X Energy Storage System
- Extension cable for photovoltaic panels (2.95 m) x8
- STREAM AC cable (1.5 m)
- PV key
- Mounting bracket
- Locking bracket
- Safety instructions
- Installation manual
- Warranty card
General
| Producer | EcoFlow |
|---|---|
| Name | STREAM Ultra X |
| Model | EFSTREAMULTRAX800W |
| Weight | 38.8 kg |
| Dimensions | 420 × 294 × 460 mm |
Drums
| Battery capacity | 3.84 kWh |
|---|---|
| Battery life | 6000 cycles / 70% SOH |
| Battery Type | 200Ah Lithium-ion battery (100Ah 6S2P) |
| nominal battery voltage | 19.2 V |
| Charging voltage range | 13.8-21.9V (lower limit 2.3V, upper limit 3.65V per cell) |
| Discharge voltage range | 15-21.9V (lower limit 2.5V, upper limit 3.65V per cell) |
| Maximum charge/discharge current | 80 A |
| Maximum charging power | ≥1500 W |
| Maximum discharge power | 1200 W |
photovoltaic parameters
| MPPT | 4 |
|---|---|
| Maximum input power per channel | 500 W |
| Maximum input power of the photovoltaic panel | 2000 W |
| Maximum photovoltaic input voltage | 60 Vdc |
| MPPT voltage range | 15-60 Vdc |
network parameters
| Power delivered to the grid | 800 W |
|---|---|
| Maximum output current into mains | 2.61 A / 3.48 A / 5.22 A |
| Maximum bypass input current | 10 A |
| nominal voltage | 220/230/240 V~ |
| Voltage range | 180-270 V AC |
| Frequency range | 45-55 Hz |
Off-grid parameters
| Apparent nominal power | 1200 VA |
|---|---|
| Maximum apparent power | 1200 VA |
| Rated output current | 5.22 A |
| Maximum output current | 5.22 A |
| Rated output voltage | 230 V AC |
| Rated output frequency | 50/60 Hz |
| Output frequency range | 45-55 Hz |
Bypass parameters
| Maximum bypass output power | 2300 W (10 A) |
|---|
Efficiency
| Maximum efficiency | 93% |
|---|---|
| MPPT conversion efficiency | 96% |
| MPPT tracking efficiency | 99,8% |
Basic parameters
| Operating temperature range | From -20°C to 55°C |
|---|---|
| Storage temperature range | From -20°C to 55°C |
| Battery heating function | When charging at temperatures below 5°C |
| Operating humidity | 5-95% |
| Maximum altitude. | 4000 m |
| Monitoring method | Wi-Fi / Bluetooth |
| Noise level | <30 dB |
| Power consumption in standby mode | <5 W |
| Protection class | Degree of protection IP65 (IP54 with Schuko socket) |





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