
EcoFlow · Batteries
Works with
DELTA 3 Max / DELTA 3 Max Plus / DELTA 3 Ultra Plus
Adds 2,048 Wh of 4,000-cycle LiFePO4 storage to the EcoFlow DELTA 3 Max, DELTA 3 Max Plus, or DELTA 3 Ultra Plus. Compact 35.3 lb low-profile stackable enclosure with XT150 expansion cable included.
Use
The EcoFlow DELTA 3 Max Plus Smart Extra Battery adds 2,048 Wh of next-generation LiFePO4 storage to your EcoFlow DELTA 3 Max, DELTA 3 Max Plus, or DELTA 3 Ultra Plus system, doubling a 2 kWh station to 4,096 Wh or scaling further with dual expansion modules.
Engineered in a low-profile 35.3 lb (16 kg) stackable enclosure, the battery links directly via the XT150 Extra Battery Cable and synchronizes charge, discharge, and cell-health telemetry in real time through the host station's display and the EcoFlow mobile app.
Compatibility
Highlights
In the box
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Works with: RIVER 3 Plus
Adds 286 Wh of LiFePO4 capacity to the RIVER 3 Plus (572 Wh total) via cable-free Pogo Pin stacking. Rated for 3,000+ cycles to 80% capacity and includes a 140W bidirectional USB-C port for standalone charging and device power.

Works with: RIVER 3 Plus
Adds 572 Wh of LiFePO4 capacity to the RIVER 3 Plus, tripling total system storage to 858 Wh. Clips beneath the station via wireless Pogo Pin contacts and features a built-in 140W bidirectional USB-C port for standalone use.