Main Features:
- Save ￡1729 Annually on Electricity: STREAM Ultra’s 2800W high-power solar input with 4 MPPT channels efficiently reduces your energy costs. The dual AC ports (1200W–2300W) power 99% of home appliances simultaneously, maximising savings effortlessly.
- Flexible Capacity, Easy DIY Expansion: STREAM Ultra effortlessly expands from 1.92kWh to 11.52kWh, connecting up to 6 units in your home. Easily integrates with EcoFlow DELTA Series batteries for increased energy storage.
- Solar Energy Indoors – Plug & Power Anywhere: EcoFlow STREAM Series batteries feature AC-coupling technology, enabling flexible indoor placement. Simply plug in and directly power household appliances like fridges, washing machines, or coffee makers with stored solar energy.
- Safe, Silent, & Space-Saving: Featuring a durable 10-year LFP battery (6,000 cycles), STREAM Ultra operates silently for undisturbed family moments. Its IP65 water-resistant and dustproof design withstands temperatures down to -20℃. Compact (only 26cm wide) with hidden wiring, it blends seamlessly into your home.
- Intelligent AI Control for Maximum Savings: EcoFlow’s AI-powered app analyses dynamic electricity pricing, your energy habits, and device status, refreshing optimal Time-of-Use (TOU) strategies hourly. Monitor performance, customise energy usage, and enjoy intelligent 24-hour support—saving you money effortlessly.
- Achieve Nearly 100% Solar Independence: Multiple EcoFlow STREAM Series batteries form an AI-managed energy network, automatically transferring surplus solar power between rooms. Maximise your solar efficiency, boost self-sufficiency, and significantly reduce electricity bills.
Maximum Solar Utilisation, Maximum Savings
2300W Output for Peak Demand Moments
When you connect two units in parallel, you can boost the output to 2300W, allowing you to power heavy-duty appliances 100% with solar energy.
Sunset to Sunrise Power: From 3.84kWh to 23kWh
EcoFlow STREAM Ultra X goes beyond industry standards, capturing surplus solar energy during the day to keep you powered through the night — and it scales easily to fit your energy needs.
2 Ways to Scale for Different Needs
Dual Units in Parallel
Connect two STREAM Series units, or pair a STREAM Ultra X with any STREAM Extra Batteries using a Parallel Cable. This setup lets you run heavy-duty appliances up to 2300W, all powered by solar energy.
Decentralised Solar Network
With multiple STREAM products, you can place one near your solar panels and the others anywhere in your home. Once the batteries are plugged into AC sockets, they automatically form a solar network, distributing energy to your devices in the laundry, kitchen, living room, and beyond.
Capture Every Ray, Maximise Sunlight
Harness the sun’s power faster than ever. With four advanced MPPTs and a massive 2000W solar input, the STREAM Battery captures and stores more solar energy, more efficiently.
Don’t Let Clouds or Dusk Limit Your Solar Power
The STREAM Battery uses advanced low-light technology to capture energy from even muted skies, delivering up to one extra hour of solar harvest each day compared to industry averages.
Safety You Can Trust
Built into Both Hardware & Software
Ready For Any Weather
AI-Driven Energy, Always Optimised
EcoFlow OASIS doesn’t just answer your energy management questions quickly—it also provides smart analysis and tailored optimisation tips to help you get the most from your system.
Total EcoFlow Energy Ecosystem Harmony
Compatible with EcoFlow Smart Meter and Smart Plug
Take full control with EcoFlow Smart Meters or Smart Plugs to ensure no power goes to waste. When you connect an EcoFlow Smart Meter with the STREAM Series, they communicate directly, even offline. This allows the STREAM Series to automatically adjust its output to your home grid in real time, with minimal delay.
Cross-Brand Ecosystem Harmony
EcoFlow OASIS brings together third-party devices that use Tiber, Matter, and Shelly protocols, all on one unified platform. Enjoy a simpler, more intuitive experience without the hassle of switching between multiple platforms and apps.
EcoFlow STREAM Ultra X
EcoFlow STREAM Ultra
EcoFlow STREAM Pro
EcoFlow STREAM Max
What’s in the box – STREAM Ultra X
Specs – EcoFlow STREAM Ultra X
Capacity
3,84kWh
Cycle Life
6000 cycles to 70% capacity
AC Charging Input
1200W
AC Output
1200W
MPPT
4
PV Input Power
2000W (500W*4)
PV Input Voltage
Maximum 60V DC
AC Output-Grid Tied
800W
AC Charging Input
10A
Max Device Power Supported
2300W (10A)
Operating Temperature
-20~55°C
Battery Self-Heating
Low-Temperature Charging Activation (≤5°C)
Connection
Wi-Fi/Bluetooth
Ingress Protection Rating
IP65
Net Weight
38,8kg
Dimensions
420mm × 294mm × 460mm
Acoustic Noise
＜30 dB
Warranty
10-Year
