The EcoFlow STREAM Ultra X bundle with two units forms a strong foundation for smarter energy use at home. By combining two systems, you get a total storage capacity of 7.68 kWh, allowing you to store more of your generated energy and use it later, for example in the evening.
While a single unit works well as an entry-level solution, combining two batteries offers noticeably more flexibility in daily use. The system can handle peaks in consumption more effectively and allows you to power multiple devices at the same time, within the limits of your electrical connection. In parallel operation, the available power increases to approximately 2300 W, making it suitable for more demanding applications.
On the solar side, the benefits are just as clear. Each unit supports up to 2000 W of solar input via four MPPT inputs, meaning that with two systems you can utilize up to approximately 4000 W of solar capacity. This allows more generated energy to be used directly or stored, instead of being fed back into the grid.
The STREAM Ultra X is designed as a modular system that grows with your energy needs. By combining multiple units, you create a more stable and efficient system that distributes energy more intelligently and aligns better with your household consumption.
Installation remains simple and straightforward. Both units connect via a standard wall socket and operate together as one system. Using the EcoFlow STREAM Parallel Cable, the batteries are linked to combine both capacity and output. For higher power levels, connection to a dedicated circuit may be required, depending on your electrical installation.
| Brand | Ecoflow |
| Artikelnummer | EFSTREAMULTRAX800W-EU |
| Warranty | 10 Years |
| Battery capacity in Wh | 3.84 kWh Expandable to 23 kWh |
| Output 230 V | AC output grid-connected: 1,200 W (if on its own circuit, otherwise 600 W) |
| Wifi-function | Wifi & Bluetooth |
| Brand | Ecoflow |
| Artikelnummer | EFSTREAMULTRAX800W-EU |
| Warranty | 10 Years |
| Battery capacity in Wh | 3.84 kWh Expandable to 23 kWh |
| Output 230 V | AC output grid-connected: 1,200 W (if on its own circuit, otherwise 600 W) |
| Wifi-function | Wifi & Bluetooth |
| Temperature resistant | −20 °C tot +55 °C |
| Weatherproof | IP65 |
| Dimensions | 42 x 29,4 x 46 cm |
| Weight | 38,8 kg |
| Connection method | Plug & Play (via 230V power outlet and EcoFlow/Shelly Smart meter) |
| PV input | 2000W max. via 4x 500W interne MPPT |
| MPPT voltage range | 15-60 V |
| Input current per MPPT | PV ingang 1: max. 14A (20A Isc) 500W max. PV ingang 2: max. 14A (20A Isc) 500W max. PV ingang 3: max. 14A (20A Isc) 500W max. PV ingang 4: max. 14A (20A Isc) 500W max. |
| Noise | 30 dB |
| Brand | Ecoflow |
| Artikelnummer | EFL-STREAM-PARALLELAC-H |
| Warranty | 2 years |
| Dimensions | 55cm |