With high output power

and emergency home use

400 W continuous and up to 3

ground fault monitoring

with cover

EcoFlow DELTA PRO [ULTRA-X] Smart Extra Battery | 6,144Wh Expandable Capacity | Plug-and-Play | EV-Grade LFP Cells | Dual BMS | 5-Year Warranty Point Zero With high output powerUpgrade your EcoFlow DELTA Pro Ultra X system with this plug and play Smart Extra Battery, adding an additional 6,144Wh of capacity instantlyno 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 youre preparing for extended outages or scaling your energy independence, the Smart Extra Battery is the ideal solution