Energy storage with EcoFlow STREAM Ultra X microinverter (3.84kWh)

EcoFlow STREAM Ultra X Energy Storage with Microinverter (3.84 kWh)

Looking for a smart, easy way to get more from your solar setup? The EcoFlow STREAM Ultra X is a powerful 3.84 kWh home energy storage system with a built-in microinverter, designed to help you use more of the energy your panels generate and rely less on the grid. It’s a great fit for hobbyist solar users who want a flexible, scalable, and user-friendly solution for everyday power savings, backup use, and smarter energy management.

With 4 MPPT inputs, support for up to 2000 W PV input, and the ability to handle loads up to 2300 W, the STREAM Ultra X combines strong performance with simple plug-and-play installation. As part of the EcoFlow STREAM ecosystem, it intelligently prioritizes solar power first, then stored battery power, and only uses grid energy when needed. The result? Better self-consumption, lower electricity bills, and more energy independence.

Key benefits

• 3.84 kWh battery capacity for daily use, evening power, and emergency backup
• Built-in microinverter for a cleaner, simpler solar energy setup
• Up to 2000 W solar input via 4 independent MPPT trackers
• Supports loads up to 2300 W in bypass mode
• Scalable up to 23 kWh with up to 6 units
• Smart app control with real-time monitoring and automation features
• LFP battery cells rated for around 6000 cycles
• Quiet operation under 30 dB
• IP65 protection for reliable indoor or outdoor installation
• Works with smart home ecosystems including Shelly, Matter, and Tibber

Up to 2300 W of usable power

The EcoFlow STREAM Ultra X can power demanding devices with up to 2300 W in two practical ways. In a single-unit setup, the system combines solar power up to 1200 W with grid input up to 1100 W to cover higher energy demand without overloading your installation. If you connect two units in parallel, you can achieve 2300 W output powered entirely by solar energy, reducing grid draw to zero and maximizing solar self-consumption.

Expandable up to 23 kWh

The built-in 3.84 kWh capacity is enough to keep essential devices running after sunset or during a power outage. Need more? You can expand the system to as many as 6 units for a total of 23 kWh. That makes the STREAM Ultra X a future-ready option that can grow with your setup—from a compact backup solution to a more complete home energy system.

Maximize solar harvest with 4 MPPT inputs

With 4 MPPT channels and support for up to 2000 W solar input (4 × 500 W), the STREAM Ultra X is built to capture more energy throughout the day. Its advanced low-light performance helps the battery keep charging even in weaker sunlight, such as during cloudy weather or early morning hours. More energy collected during the day means less power pulled from the grid and a faster return on your solar investment.

Create a solar network across your home

The EcoFlow STREAM Ultra X lets you build a decentralized home solar network. Simply place units in different locations—one near your PV panels and others near high-consumption appliances. The STREAM system automatically links all modules into one intelligent network and directs energy where it’s needed most, whether that’s the kitchen, laundry room, or living room, with no complicated manual setup required.

Smart energy control and automation

Using the EcoFlow app and OASIS system, you can monitor energy flow in real time, set usage priorities, and create custom schedules. AI Mode analyzes weather forecasts, dynamic electricity pricing, and your consumption habits to automatically charge the battery during cheaper hours and discharge it when electricity costs are higher. You can also build your own automation rules for smart home scenarios, such as charging an EV when solar production peaks. Please note that some app features may require a premium subscription.

Smart home integration

The STREAM Ultra X works with EcoFlow smart meters and smart plugs, including offline communication support. It can automatically adjust the amount of power fed into your home network to help prevent energy waste. Compatibility with popular platforms such as Shelly, Matter, and Tibber gives you more control over your energy system from one convenient app environment.

Built for long-term safety and reliability

The use of LFP battery cells ensures a long service life of around 6000 charge cycles at 70% SOH, which translates into many years of dependable use. The housing is fire-resistant, while the multi-level protection system helps guard against overload, overheating, and other electrical risks. Fast voltage drop response in under 0.7 seconds adds another layer of installation safety, and globally recognized certifications support strong privacy and data protection standards.

Ready for indoor and outdoor use

Thanks to its IP65-rated enclosure, the EcoFlow STREAM Ultra X is protected against dust and rain. It also features a battery self-heating function, allowing reliable operation in temperatures as low as -20°C. That means you can install it indoors or outdoors and count on stable performance all year round.

Quiet, stylish, and easy to install

With a noise level below 30 dB, the STREAM Ultra X runs quietly enough for everyday home environments, including living rooms or even bedrooms. Its housing is made from materials with a reduced carbon footprint, making it a more eco-conscious choice. Setup is quick and simple thanks to the plug-and-play design, and optional interchangeable front panels sold separately—available in natural wood and elegant black—make it easier to match the unit to your interior style.

What’s in the box

• EcoFlow STREAM Ultra X energy storage unit
• PV extension cable (2.95 m) ×8
• STREAM AC cable (1.5 m)
• PV wrench
• Mounting bracket
• Locking bracket
• Safety instructions
• Installation guide
• Warranty card