Stream Expansion Battery 5000

The STREAM Expansion Battery 5000 is a modular add‑on battery for EcoFlow STREAM systems, now priced at £1,299 (was £1,499) – a £200 discount. It’s designed to increase onsite energy storage and make better use of solar generation for evening and overnight use.

• Expandable capacity: add from 5 kWh up to 15 kWh depending on how many units you stack.
• Plug‑and‑play expansion: batteries connect together quickly so you can increase capacity in minutes.
• Compatibility: works with your existing EcoFlow STREAM storage system so you don’t need to replace the core unit as needs change.
• Purpose: intended to store more solar energy for day‑to‑night use.

The offer is presented as a way to scale household battery storage in a stepwise, modular fashion. Installation time and exact compatibility depend on your current STREAM setup and any site‑specific requirements, so check technical notes or speak to an installer if you need system‑level details.