EcoFlow DELTA 3 Max Plus & Ultra Plus Smart Extra Battery | 2048Wh Expansion

Double Your Runtime — 2048Wh Plug-and-Play Expansion for DELTA 3 Max Plus & Ultra Plus

The EcoFlow DELTA 3 Max Plus Smart Extra Battery adds 2048Wh of LFP capacity to your DELTA 3 Max Plus or Ultra Plus with zero setup — just plug in and power on. At 25% more compact than the previous generation, it stores easier, stacks cleaner, and goes wherever you do.

Key Features

• +2048Wh Expandable Capacity: Compatible with the DELTA 3 Max Plus and DELTA 3 Ultra Plus — dramatically extends runtime for home backup, camping, and off-grid use.
• 25% More Compact Than Previous Gen: Reduced overall volume vs. the DELTA 2 Max Smart Extra Battery — easier to store, carry, and stack.
• Long-Lasting LFP Battery: Lithium Iron Phosphate chemistry delivers a 10-year lifespan with stable, safe performance across thousands of charge cycles.
• True Plug-and-Play: No configuration required. Connect and monitor charge level and temperature in real time via the EcoFlow App.
• Up to 5-Year Warranty: 3-year standard warranty + 2 additional years when you register through the EcoFlow App.