EcoFlow DELTA 2 Extra Battery – 1,024Wh LiFePO4 Expansion, Doubles DELTA 2 Capacity


1,024Wh LiFePO4 expansion battery that doubles the EcoFlow DELTA 2 power station from 1,024Wh to 2,048Wh with a single cable connection. 3,000+ cycle life, passive cooling, and EcoFlow app health monitoring included.

$499.99

EcoFlow DELTA 2 Extra Battery – 1,024Wh LiFePO4 Expansion, Doubles Capacity

The EcoFlow DELTA 2 Extra Battery is the simplest and most cost-effective way to double the capacity of your DELTA 2 power station — connecting with a single cable to expand from 1,024Wh to 2,048Wh of total LiFePO4 energy storage. Two extra batteries can be connected for 3,072Wh total, providing multi-day home backup capability from a portable system.

About This Item

  • Doubles DELTA 2 Capacity: Connects directly to the DELTA 2 expansion port, immediately doubling total capacity from 1,024Wh to 2,048Wh. Add two Extra Batteries for 3,072Wh — enough to power a refrigerator for 30+ hours.
  • 1,024Wh LiFePO4 Per Unit: Each Extra Battery contributes 1,024Wh of LiFePO4 energy storage with 3,000+ charge cycles — the same chemistry as the DELTA 2 main unit for a perfectly matched expansion system.
  • Plug-and-Play Single Cable: A single DC cable connects the Extra Battery to the DELTA 2’s expansion port. No configuration, no additional software, no settings — automatic recognition and integration immediately.
  • EcoFlow App Monitoring: Monitor combined and individual battery states through the EcoFlow app. View total system capacity, per-unit state of charge, temperature, and health status from your smartphone.
  • Silent Passive Cooling: No fans required — passive thermal management operates completely silently for use in bedrooms, home offices, and other noise-sensitive locations during backup power scenarios.
  • Compatible with DELTA 2 and DELTA 2 Max: Designed for both the standard DELTA 2 and DELTA 2 Max power stations, making it a versatile expansion option for either base unit.
  • Full EcoFlow 5-Year Warranty: Covered by EcoFlow’s comprehensive 5-year warranty for complete protection of your expansion investment alongside the main power station.

Product Information

Brand EcoFlow
Model DELTA 2 Extra Battery
Capacity 1,024Wh
Battery Type LiFePO4 (3,000+ Cycles)
Compatible With EcoFlow DELTA 2, DELTA 2 Max
Max Stack 2 Units (3,072Wh Total)
Connection Single DC Cable (Included)
Cooling Passive (Silent)
Weight 26.5 lbs (12 kg)
App EcoFlow App (Included)
Warranty 5 Years

Customer Reviews Highlights

★★★★★ 4.7/5 from 3,100+ verified buyers — DELTA 2 owners consistently describe this as “the best money I’ve spent on emergency preparedness since the DELTA 2 itself.” The single-cable plug-and-play connection is universally praised for its simplicity. Doubling backup duration from 12 hours to 24+ hours of refrigerator runtime is cited as the critical improvement for multi-day outage scenarios.

SKU: ECOF-7163 Category: Brand:

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