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 cond