EcoFlow

STREAM Ultra X 3.84 kWh Balcony Storage (4 MPPT, 2,000 W PV)

HybridBattery includedVDE-AR-N 4105

EcoFlow's flagship balcony storage hub launched in August 2025. 3.84 kWh LFP battery (double the STREAM Ultra), four MPPTs accepting up to 2,000 W of PV (500 W per string, 60 V DC max), 1,200 W AC output and up to 2,300 W when paired with a second STREAM unit. Expandable to 23 kWh with STREAM AC Pro batteries. IP65 with self-heating and 6,000-cycle (70%) LFP cells.

1200W

AC output

3.84

kWh battery

Price not listed — check retailer for current pricing.

View priceManufacturerDatasheet

System

Kit typeHybrid
AC output1200 W
SKUEFSTREAMULTRAX-3.84KWH-EU

Panel

BifacialNo

Inverter

BrandEcoFlow
ModelSTREAM Ultra X (built-in)
TypeHybrid
Warranty10 years

Battery

BrandEcoFlow
ModelSTREAM Ultra X (integrated)
Capacity3.84 kWh
ChemistryLFP
Cycle life6,000 cycles
Warranty10 years

Mounting & Install

Mounting includedNo
Cable length3 m
Plug typeSchuko
Install difficultyPlug-and-play

Smart Features

App monitoringEcoFlow
Wi-Fi enabledYes

Compliance & Certifications

UK G98 (≤16A)No
UK G99No
VDE-AR-N 4105 (DE)Yes
CE markedYes
CertificationsCE, VDE-AR-N-4105, IP65

Warranty

Overall10 years
Inverter10 years
Battery10 years

Availability

Country of manufactureChina
Available inGermany, FR, ES, IT, NL, BE, AT, European Union
balconywith-batteryhybridexpandablewifi-monitoringip65vde-ar-n-4105

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