EcoFlow Extra Battery Expansion Adapter

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Extra Battery Expansion Adapter will ship on 15 August 2026. The EcoFlow Extra Battery Expansion Adapter connects two Smart Extra Batteries with a single cable, expanding the capac ity of DELTA 3 Max Plus and DELTA 3 Ultra Plus. DELTA 3 Max Plus works with: DELTA 3 Max Plus Smart Extra Battery, DELTA Pro 3 Smart Extra Battery, DELTA 3 Smart Extra Battery, EcoFlow 800W Alternator Charger, EcoFlow Alternator Charger 600, EcoFlow Alternator Charger Plus 1000. DELTA 3 Ultra Plus works with: DELTA 3 Max Plus Smart Extra Battery, DELTA Pro 3 Smart Extra Battery, EcoFlow 800W Alternator Charger, EcoFlow Alternator Charger 600, EcoFlow Alternator Charger Plus 1000. Show more