Ecoflow Stream AC

Overview

The EcoFlow STREAM AC is a dedicated expansion battery for modular EcoFlow energy systems. It is designed to increase total storage capacity without providing its own AC output, making it a practical choice for users who want to scale existing STREAM setups.

With a capacity that can be configured from 2 to 12 kWh, the STREAM AC supports flexible home battery storage for households looking to improve self-consumption, add reliable power backup, or extend an existing solar energy storage system. It integrates with the EcoFlow app and central energy management for monitoring and control.

What the EcoFlow STREAM AC Does

The STREAM AC functions as a pure storage expansion unit. Unlike the STREAM AC Pro model, it does not include an AC outlet of its own. Instead, it adds capacity to compatible EcoFlow STREAM systems and helps create a more scalable modular energy setup.

• Pure expansion battery without AC output
• Scalable storage capacity from 2 to 12 kWh
• Compatible with selected EcoFlow STREAM systems
• Designed for home battery storage and energy management

Key Benefits

Expand Storage Capacity

One of the main advantages of the EcoFlow STREAM AC is its flexible capacity. It can be used to increase available storage for households with higher energy demand or for users who want more room for solar charging and backup power.

Integrates with EcoFlow Energy Management

The STREAM AC connects to the EcoFlow app and works within the central energy management system. This allows users to monitor storage levels, charging behavior, and consumption patterns in real time.

Built for Practical Everyday Use

With an IP65 protection rating, compact housing, and an 800 W fuse for added safety, the STREAM AC is designed to support safe use in suitable outdoor installations while keeping the footprint relatively small.

Technical Highlights

• Battery chemistry: Lithium iron phosphate (LiFePO₄)
• Battery capacity: 1.92 kWh
• Scalable capacity: 2 to 12 kWh
• Life cycles: up to 6000 cycles to 70% remaining capacity
• Protection rating: IP65
• Connectivity: Wi-Fi / Bluetooth
• Operating temperature: -20 °C to +55 °C
• Weight: 21.2 kg
• Dimensions: 255 mm × 254 mm × 458 mm

Compatibility and Use Cases

The EcoFlow STREAM AC is suitable for users who already have a compatible STREAM setup and want to expand storage without adding a separate AC output. It can be a good fit for households that are building modular energy systems and want more flexibility in how energy is stored and managed.

• Upgrading an existing EcoFlow STREAM installation
• Increasing solar energy storage capacity
• Supporting higher self-consumption
• Adding backup storage to a modular setup

Why Choose a Modular Expansion Battery?

Modular energy systems make it easier to adapt storage to changing energy needs. Instead of replacing an entire setup, users can add capacity over time. The EcoFlow STREAM AC supports this approach by focusing on storage expansion and integration within the EcoFlow ecosystem.

For customers looking for a reliable power backup solution with app-based control and scalable design, the STREAM AC offers a straightforward way to extend an existing system.

FAQ

Does the EcoFlow STREAM AC have its own AC output?

No. The EcoFlow STREAM AC is a pure expansion battery and does not feature its own AC output.

What is the storage capacity of the STREAM AC?

The STREAM AC can be configured for scalable storage from 2 to 12 kWh.

Can I monitor the STREAM AC in the EcoFlow app?

Yes. The STREAM AC connects to the EcoFlow app for real-time monitoring and energy management.

Is the EcoFlow STREAM AC suitable for outdoor use?

The unit has an IP65 protection rating, which supports safe use in suitable outdoor environments.

What type of battery does the STREAM AC use?

It uses lithium iron phosphate (LiFePO₄) battery technology.

How long does the EcoFlow STREAM AC last?

The listed lifespan is up to 6000 cycles to 70% remaining capacity.