EcoFlow STREAM Expansion Battery 5000

Need more storage capacity? The EcoFlow STREAM 5 kWh Battery makes it easy to expand your STREAM system.

Expand as your energy needs grow

Thanks to its modular design, you decide how large your energy system becomes. Combine different STREAM batteries and expand your system up to 45 kWh of storage capacity, 9 kW of continuous output power, and three independently managed circuits.

Whether you start with a STREAM 3000, STREAM 5000, or STREAM AC 5000, the expansion battery integrates seamlessly into the EcoFlow STREAM ecosystem. This allows you to add storage capacity whenever needed, without replacing your existing system.

With every additional STREAM battery, the available storage capacity continues to grow. This keeps a larger share of the solar energy generated during the day available for use in the evening or during periods of higher household consumption.

Designed for everyday use

The STREAM 5 kWh Battery supports up to 1,800 W of charging and discharging power, making it a perfect match for the capabilities of the STREAM platform. This ensures that energy remains efficiently available for storage and later use.

Designed for years of daily operation, the battery supports up to 10,000 charge cycles. Thanks to its self-heating battery technology, the system continues to operate reliably even at lower temperatures. In addition, the battery is backed by a 10-year warranty, making it a durable expansion for your energy storage system.

Compact, quiet, and flexible to install

Despite offering more than 5 kWh of storage capacity, the battery remains compact, measuring just 295 × 519 × 267 mm. It also produces less than 20 dB of noise, making it virtually inaudible during operation.

The enclosure features an IP65 rating and is designed to withstand a wide range of conditions. This allows the battery to be installed flexibly in a utility room, technical room, or another suitable location.