EcoFlow
EcoFlow STREAM AC Pro
4.3 1.92kWh
A 1.92kWh add-on battery for the STREAM ecosystem that also works standalone as an AC-coupled plug-in battery for off-peak charging.
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Specifications
| Usable capacity | 1.92 kWh |
|---|---|
| Max expandable | 11.52 kWh |
| Max AC output | 800 W |
| Max PV input | 0 W |
| Cycle life | 6000 |
| Weatherproofing | IP65 |
| App control | Yes |
| AC-coupled (works without panels) | Yes |
Our verdict
The natural upgrade path if you started with a STREAM microinverter: stack it under the inverter and your clipped surplus goes into storage instead of nowhere. AC-coupled mode means it also earns its keep on a time-of-use tariff before you buy a single panel. The only genuinely UK-stocked battery of the three, though it sells out fast.
Pros
- Drops into an existing STREAM setup
- Also works battery-only on cheap tariffs
- Stackable to 11.5kWh
Cons
- No direct PV input of its own
- Needs the EcoFlow ecosystem for solar charging