*Increase the capacity of DELTA 3 Plus/DELTA 3 with an extra 1024Wh.
*Get 10 years of daily use until it hits 80% of its original capacity. Embrace 3000+ charging cycles enabled by the LFP battery chemistry.
*Plug-and-play system. Use the EcoFlow app to monitor and control the DELTA 3 Smart Extra Battery.
*With one of the most compreh
5.0
26 ratings
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Happy with my purchase.
J
James vega · June 25, 2026
Was delivered quickly and installed easily
J
Jason · September 27, 2025
Doubles the battery capacity of the Delta 3 Plus and it nestles nicely on top or below the main unit. Can use directly with Wave 2.