Ecoflow Stream Ultra X 1200W 3.84kWh Battery 4 x 470W Solar Power Kit

  
By EcoFlow
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EcoFlow STREAM Ultra X 1200W 3.84kWh Battery with 4 × Trina 470W Solar Power Kit

  • Plug‑in solar battery kit combining the EcoFlow STREAM Ultra X 3.84kWh home battery with built-in microinverter and four high‑efficiency Trina Vertex S 470W panels (≈1.88kW PV).
  • Provides up to 1200W AC output from the unit’s own AC outlets and 800W grid‑tied output, and 1200W AC device support from stored solar energy, helping to cut household electricity bills without complex rewiring.
  • Long‑life LFP battery, N‑type dual‑glass solar modules and IP‑rated hardware designed for reliable balcony, garden or small rooftop installations.

Overview

The EcoFlow STREAM Ultra X 1200W 3.84kWh Battery with 4 × Trina 470W Solar Power Kit is a complete plug‑in solar storage solution for homes and small commercial users. It pairs the STREAM Ultra X 3.84kWh LFP battery and integrated micro‑inverter with four Trina Vertex S NED9R.28 470W modules to harvest up to around 1.78kW of solar power and store it for later use.

Connected to a standard 230V socket and compatible smart meter, the Ultra X automatically manages charging, discharging and feed‑in, delivering up to 1200W grid‑tied output and supporting devices up to 1200W from its AC outlets, while the high‑efficiency Trina panels maximise generation on limited roof or balcony space.

Key features

  • 3.84kWh LFP battery – EcoFlow STREAM Ultra X home battery offering up to 3.84kWh usable capacity and long cycle life for everyday solar storage.
  • 1200W AC output – Designed for plug‑in operation with up to 800W grid-tied export to your home circuits, plus 1200W AC output for direct device power from the battery.
  • High‑efficiency Trina 470W panels – Four Trina Vertex S NED9R.28 dual‑glass N‑type modules (470W each) give a compact 1.78kW array with strong performance and durability.
  • Weather‑ready design – Outdoor‑ready hardware with dual‑glass modules tested to 5400Pa front and 4000Pa rear mechanical loads, plus IP‑rated battery enclosure for typical balcony or garden installations.
  • Simple monitoring and control – Wi‑Fi and Bluetooth connectivity via the EcoFlow app so you can see generation, storage and consumption at a glance and adjust operating modes.

Where to use this kit

The EcoFlow STREAM Ultra X 1200W 3.84kWh Battery with 4 × Trina 470W Solar Power Kit is aimed at households and small businesses looking for a practical way to use balcony or roof space for solar without a full‑scale ESS project. Typical use cases include:

  • Balcony and terrace solar – Apartments and townhouses using balcony railings or small roof sections for the Trina panels, with the Ultra X mounted nearby.
  • Garden offices and studios – Powering lighting, IT equipment and small appliances from stored solar, reducing reliance on the grid during working hours.
  • Load‑shaving for domestic circuits – Offsetting part of your base load or evening peaks by feeding up to 1200W from the STREAM Ultra X into selected circuits.
  • Small commercial points – Kiosks or small shops needing a simple solar‑plus‑storage kit to reduce daytime consumption and provide short backup for critical loads.

Although the STREAM Ultra X is designed for plug‑and‑play use, EcoFlow requires that any permanent installation follows local electrical regulations and the STREAM Safety and Legal Notice. Energian can help you review your installation and, where appropriate, connect you with a qualified electrician or trusted partner to handle mounting, wiring and commissioning.

Technical specifications – EcoFlow STREAM Ultra X

  • Product: EcoFlow STREAM Ultra X plug‑in home battery with integrated micro‑inverter.
  • Battery chemistry: LFP (lithium iron phosphate).
  • Battery capacity: 3.84kWh.
  • Cycle life: up to 6000 cycles to 70% capacity (EcoFlow STREAM specification).
  • AC output (device power): 1200W AC continuous output from the Ultra X.
  • Maximum device power supported in STREAM system: up to 2300W (10A) when used with compatible STREAM units and AC Pro batteries.
  • Grid‑tied output: up to 1200W export to connected circuits via the STREAM system.
  • AC charging input: up to 1200W (10A) via mains connection.
  • PV input: up to 2000W total via four MPPT inputs (typically used here with 4 × 470W modules, limited according to MPPT power and voltage ranges).
  • Number of MPPT trackers: 4.
  • PV MPPT voltage range: 15–60V DC (per MPPT input).
  • Ingress protection: IP‑rated enclosure suitable for outdoor installation (EcoFlow STREAM Series specification).
  • Operating temperature range: EcoFlow STREAM Ultra X typically −20°C to +55°C (per STREAM spec).
  • Connectivity: Wi‑Fi and Bluetooth for EcoFlow app; integration within EcoFlow STREAM ecosystem and compatible smart meters.
  • Warranty: up to 10 years (EcoFlow STREAM Ultra X).

Technical specifications – Trina Solar Vertex S NED9R.28 470W modules 

  • Model series: TSM‑NED9R.28 Shield, N‑type i‑TOPCon dual‑glass monocrystalline module.
  • Power range: 445–470W (this kit uses 470W modules).
  • Maximum module efficiency: up to around 22% (module‑efficient Vertex S platform).
  • Key features: i‑TOPCon Ultra cell technology; “Shield” design with enhanced fire protection, snow and hail resistance, and strong wind protection.
  • Mechanical load rating: 5400Pa front side, 4000Pa back side.
  • Dimensions: 1762 × 1134 × 30mm (69.37 × 44.65 × 1.18 inches).
  • Weight: 27kg per module.
  • Glass: AR‑coated heat‑strengthened front glass and heat‑strengthened back glass.
  • Number of cells: 144 N‑type i‑TOPCon monocrystalline cells.
  • Frame: 30mm anodised aluminium alloy, black.
  • Junction box: IP68 rated.
  • Cables: 4.0mm² photovoltaic cable; portrait lead lengths 200/320mm (customisable).
  • Connectors: TS4 Plus / TS4 / MC4 EVO2 (specific types per certification documents).
  • Maximum system voltage: 1500V DC (IEC).
  • Maximum series fuse rating: 25A.
  • Operating temperature: −40°C to +70°C.
  • Temperature coefficients: Pmax −0.29%/°C; Voc −0.24%/°C; Isc +0.04%/°C.
  • Certifications: IEC 61215, IEC 61730, IEC 61701, IEC 62716; ISO 9001, ISO 14001, ISO 14064, ISO 45001.
  • Warranty: 15‑year product warranty and 30‑year power guarantee; first‑year degradation 1%, annual power attenuation 0.4%.

Documents available for download

Shipping and support

Shipping is available to the UK, Ireland, Africa, the Caribbean and worldwide. If a shipping rate is not shown at checkout, please contact us on +44 20 8064 0335 or info@energian.co.uk for a quotation.

UK expert support is available – contact us with any questions or support requests via phone, email or live chat, or visit our office for an in‑person consultation to discuss EcoFlow STREAM kits and other energy solutions.