EcoFlow STREAM AC Pro
A 1.92 kWh LiFePO₄ battery with a built-in inverter that retrofits an existing solar system with storage, with two AC outlets and a microinverter plug-in.
- Best for retrofitting storage
- Plug-in battery
- 1.92 kWh
- AC outlets
- Made by EcoFlow.
- Role: retrofits a solar power system into a solar storage system with a built-in inverter and battery modules. Up to six STREAM devices can work together.
- Capacity: 1.92 kWh, LiFePO₄ cells, 6,000 cycles.
- Power: 600 W or 800 W grid output depending on model, 1,200 W from the two AC outlets, 2,300 W when units are connected in parallel.
- Rules: whether it can be plugged into a home socket depends on your country.
Not tested by us
We have not tested the EcoFlow STREAM AC Pro. The figures on this page come from the sources listed at the end of the page, checked on 11 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
Rated capacity
1,200 W
Output from the AC outlets
6,000
Cycles
Specifications
Last checked on 11 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 rated capacity, 19.2 V |
| 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 at 0.5C charge and discharge at 25 °C |
| ExpansionExtra battery units that add storage to the same system. | Up to 6 STREAM devices in one system, in a daisy chain through the parallel terminal or distributed over the home circuit |
| Power | |
| AC output, grid-connectedThe lower output allowed when it feeds power into the home's circuits or the grid. | 800 W (model EF-EA-AC-P2K-800, 3.48 A) or 600 W (model EF-EA-AC-P2K-600, 2.61 A), 230 V, 50 Hz |
| Backup outputA separate socket that keeps selected devices running when the grid is down. | Two AC outlets with up to 1,200 W (1,200 VA, 5.22 A rated, 10 A in bypass mode). 2,300 W to appliances when at least two units are connected in parallel. |
| Backup switchover (EPS)What happens when the grid fails. EPS means it takes over automatically. | Up to 3 seconds. EcoFlow says the device is not designed to work as a UPS. |
| AC charging inputHow fast it charges from a wall socket or the grid. | Up to 2,300 W maximum input power through the grid terminal (10 A) |
| Solar | |
| Solar inputHow much solar panel power it accepts. A higher figure fills the battery faster on a sunny day. | None directly. A microinverter plugs into an AC outlet on the device: 800 W maximum input for the 800 W model, 600 W for the 600 W model. |
| Solar inverterTurns the DC power from solar panels into AC for the home. Built in means no separate solar inverter is needed. | EcoFlow lists its PowerStream and STREAM microinverters and says third-party microinverters may need extra steps. EcoFlow recommends one microinverter per STREAM system. |
| Connection and housing | |
| Dimensions (W × D × H)Check the space before you buy, including room around it for airflow and cables. | 255 × 254 × 458 mm |
| WeightMatters for lifting, wall mounting and moving it. | 21.5 kg |
| Protection ratingIP ratings show protection from dust and water. IP55 and IP65 are rated for outdoor-style exposure; check the installation guidance. | IP65, for indoor and outdoor use |
| Operating temperatureThe range it is rated to work in. Cold and heat can reduce performance. | -20 to 55 °C, performance may be reduced above 35 °C |
| ConnectivityHow you monitor and control it, usually through an app. | WLAN and Bluetooth, EcoFlow app |
| Warranty | |
| WarrantyThe period the maker covers. Read the terms: conditions and capacity guarantees differ. | Not stated in the EcoFlow manual |
Compatible with
What EcoFlow says this product works with. Anything not listed here is not confirmed.
- Smart meters
- EcoFlow lists the EcoFlow Smart Meter, EcoFlow × Shelly Smart Meter, Shelly 3EM, Shelly Pro 3EM and Tibber Pulse IR.
- Smart plugs
- EcoFlow lists the EcoFlow Smart Plug and EcoFlow × Shelly Smart Plug for system scheduling (up to 22 plugs in total).
- Other STREAM devices
- EcoFlow lists STREAM Ultra, STREAM Pro, STREAM AC and STREAM Max as compatible.
- Dynamic tariffs
- EcoFlow lists Nordpool, EPEX Spot, Rabot Charge, Octopus and Tibber.
Rules where you live
Rules for plug-in batteries differ by country. EcoFlow's manual says a standard home outlet can be used where local regulations permit, and that in regions like the United Kingdom the device is connected through a circuit breaker by a qualified 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
- Built-in inverter with two AC outlets of up to 1,200 W
- 6,000 cycles and IP65
- Up to six STREAM devices in one system
- Works with an existing microinverter
- Wide list of smart meters and dynamic tariffs
Worth checking before you buy
- No solar input of its own: solar comes through a microinverter on an AC outlet
- Backup switchover can take up to 3 seconds and it is not a UPS
- At 21.5 kg it is heavy for a wall or balcony
- Whether it counts as a plug-in product depends on your country: check the rules below
- The EcoFlow manual does not state a warranty or efficiency
Change log
We record changes to this page here, so you can see when figures such as the warranty were last updated.
- 11 November 2026
- Page published. Warranty at publication: not stated in the EcoFlow manual.
Where this information comes from
We have not tested the STREAM AC Pro. Every figure above comes from EcoFlow's STREAM AC Pro user manual (EU), last checked on 11 November 2026. We could not find a product page for this model on EcoFlow's UK or EU site, so the manual is the only source. A value the manual does not state is shown as not stated.
We do not show prices, because they change often and differ between sellers.
- Manufacturer EcoFlow STREAM AC Pro user manual (EU)
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Common questions about EcoFlow STREAM AC Pro
Can I use the EcoFlow STREAM AC Pro as a plug-in battery in my country?
It depends on local rules. EcoFlow says a home outlet can be used where regulations permit and that in regions like the United Kingdom an electrician connects it to a circuit breaker. Check our country guides.
Does the STREAM AC Pro have solar inputs?
Not directly. A microinverter plugs into an AC outlet on the device to add solar power, and EcoFlow recommends one microinverter per system.
What is the difference between the 600 W and 800 W model?
EcoFlow lists model EF-EA-AC-P2K-800 with 800 W grid output and EF-EA-AC-P2K-600 with 600 W. The battery and the other values are the same in the manual.
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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.