EcoFlow DELTA PRO [ULTRA-X] Smart Extra Battery | 6,144Wh Expandable Capacity | Plug-and-Play | EV-Grade LFP Cells | Dual BMS | 5-Year Warranty

Upgrade your EcoFlow DELTA Pro Ultra X system with this plug-and-play Smart Extra Battery, adding an additional 6,144Wh of capacity instantly—no tools or setup required. Designed with EV-grade LFP cells, dual BMS, and 3-level safety architecture, this battery offers unmatched reliability, efficiency, and long-term performance.

Whether you’re preparing for extended outages or scaling your energy independence, the Smart Extra Battery is the ideal solution for off-grid power, emergency backup, or whole-home systems.

Key Features & Benefits:

• Expandable 6,144Wh Capacity – Instantly increase your DELTA Pro Ultra X storage.

• Plug-and-Play Design – No tools, wiring, or setup required.

• EV-Grade LFP Battery Cells – Long lifespan, high efficiency, and thermal stability.

• Smart Monitoring – View usage and control settings in real-time via the EcoFlow App.

• Advanced Safety – Dual BMS + 3-level protection for peace of mind.

• Extreme Weather Protection – Reliable performance in tough conditions.

• Scalable System – Supports up to 30 additional batteries for up to 180kWh total capacity.

• 5-Year Warranty – Backed by EcoFlow’s full coverage and support.

Perfect for powering your entire home, RV, cabin, or off-grid system when paired with the DELTA Pro Ultra X inverter hub.

User Manual / Documents:

• EcoFlow DELTA Pro Ultra X User Manual