EcoFlow STREAM Pro
A 1.92 kWh plug-and-play battery with a built-in inverter and three solar inputs, expandable to 11.52 kWh.
- Best for small solar setups
- Plug-in battery
- 1.92 kWh
- 10-year warranty
- Capacity: 1.92 kWh with LiFePO4 cells, expandable to 11.52 kWh with up to six units.
- Output: 1,200 W, and 800 W when feeding the grid.
- Solar: three MPPT inputs for up to 1,500 W of panels.
- Rules: whether you can use it as a plug-in battery depends on your country.
Not tested by us
We have not tested the EcoFlow STREAM Pro. The figures on this page come from the sources listed at the end of the page, checked on 10 November 2026, and we do not show prices. "Best for" is based on what the maker says the product is designed for, not on our own tests.
Key figures
1.92 kWh
Capacity per unit
1,200 W
AC output (800 W grid-connected)
1,500 W
Solar input, 3 MPPT
Specifications
Last checked on 10 November 2026. The grey text under each name explains what the value means.
| Specification | Value |
|---|---|
| Storage | |
| CapacityHow much energy the battery stores. Bigger means longer runtime or more of your own solar power used later. | 1.92 kWh |
| Battery chemistryLFP (lithium iron phosphate) cells are known for long life and stable behaviour with heat. | Lithium iron phosphate (LiFePO4) |
| Cycle lifeHow many full charge and discharge cycles the cells are rated for before they hold less than the stated share of their original capacity. | 6,000 cycles |
| ExpansionExtra battery units that add storage to the same system. | Up to 11.52 kWh with up to six units (other STREAM Pro, STREAM Ultra or STREAM AC Pro) |
| Power | |
| AC outputThe power it can deliver through its sockets or inverter, in watts. | 1,200 W |
| AC output, grid-connectedThe lower output allowed when it feeds power into the home's circuits or the grid. | 800 W |
| Parallel modeLinking units so their outputs add up. | Up to 2,300 W with a second STREAM unit |
| AC charging inputHow fast it charges from a wall socket or the grid. | 1,050 W |
| Efficiency and standby useLosses when charging, discharging and doing nothing. | Not stated in the sources we read |
| Solar | |
| Solar inputHow much solar panel power it accepts. A higher figure fills the battery faster on a sunny day. | 1,500 W maximum, via 3 MPPT inputs of 500 W each, 15-60 V, 14 A |
| Connection and housing | |
| Dimensions (W × D × H)Check the space before you buy, including room around it for airflow and cables. | 284 × 255 × 458 mm |
| WeightMatters for lifting, wall mounting and moving it. | 22.8 kg |
| Protection ratingIP ratings show protection from dust and water. IP55 and IP65 are rated for outdoor-style exposure; check the installation guidance. | IP65 |
| Operating temperatureThe range it is rated to work in. Cold and heat can reduce performance. | -20 to 55 °C, with battery self-heating for charging at 5 °C or below |
| Noise levelFan noise while working. | Below 30 dB |
| ConnectivityHow you monitor and control it, usually through an app. | Wi-Fi and Bluetooth, with the EcoFlow app |
| Warranty | |
| WarrantyThe period the maker covers. Read the terms: conditions and capacity guarantees differ. | 10 years |
Compatible with
What EcoFlow says this product works with. Anything not listed here is not confirmed.
- Extra capacity
- Other STREAM Pro, STREAM Ultra or STREAM AC Pro units, up to six in one system (11.52 kWh).
- Solar panels
- Panels in the 15-60 V range with up to 14 A per input, and a maximum of 500 W per MPPT input.
- Smart meters and plugs
- EcoFlow lists compatible smart plugs and smart meters, controlled through the EcoFlow app. The manual says only one type of sensor can be used at a time.
Rules where you live
Rules for plug-in batteries differ by country. EcoFlow's UK page says the STREAM is supplied with a power cable with stripped ends (no plug) and must be hardwired by a certified, registered electrician. In Great Britain, plug-in solar kits of up to 800 VA have been legal since 27 August 2026, but the rules exclude plug-in batteries.
Check the rules, incentives and tariffs for your own country in our country guides.
Strengths and things to check
Strengths
- Battery, inverter and three solar inputs in one unit
- Modular: up to 11.52 kWh
- IP65 and a -20 to 55 °C operating range
- 10-year warranty
Worth checking before you buy
- Whether it counts as a plug-in product depends on your country: check the rules below
- The grid-connected output is 800 W, lower than the 1,200 W standalone figure
- Three solar inputs, one fewer than the STREAM Ultra
- Weighs 22.8 kg
Change log
We record changes to this page here, so you can see when figures such as the warranty were last updated.
- 10 November 2026
- Page published. Warranty at publication: 10 years (EcoFlow UK STREAM Ultra/Pro page).
Where this information comes from
We have not tested the STREAM Pro. Every figure above comes from EcoFlow's UK STREAM page and its user manual, last checked on 10 November 2026. Where those give no value, we say so.
We do not show prices, because they change often and differ between sellers.
- Manufacturer EcoFlow UK STREAM Ultra page
- Manufacturer EcoFlow STREAM Pro and Ultra manual
Spotted an error?
Tell us through the contact form on our About Us page.
Common questions about EcoFlow STREAM Pro
Can I use the STREAM Pro as a plug-in battery in my country?
It depends on local rules. EcoFlow's UK page says it must be hardwired by a certified electrician. In Great Britain, plug-in solar kits up to 800 VA are legal since 27 August 2026 but the rules exclude plug-in batteries. Check your country in our country guides.
What is the difference between the STREAM Pro and the STREAM Ultra?
EcoFlow lists the same 1.92 kWh battery and 1,200 W output for both. The STREAM Pro has three solar inputs (1,500 W) and the STREAM Ultra four (2,000 W). See our STREAM Ultra page.
Why are there two output figures, 800 W and 1,200 W?
EcoFlow gives 800 W as the grid-connected output and 1,200 W as the AC output when it is not feeding the grid. With a second unit in parallel mode it lists up to 2,300 W.
Related guides
How much could a battery save you?
Our calculator uses your own usage and tariff to estimate what a home battery could save, with conservative assumptions.