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 capacity 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.
