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EcoFlow DELTA 2 Max Smart Extra Battery
2,048 Wh that works with 5 stations, reaching 6,144 Wh in the largest setup.
- 2,048 Whcapacity
- 42 lbweight
- LFPbattery type
By the Power Station Chart team, from the maker's compatibility pages. Last reviewed October 31, 2026.
The DELTA 2 Max Smart Extra Battery in brief
Pair two of these with one DELTA 2 Max and the system reaches 6,144 Wh. EcoFlow says a single DELTA 2 Max can connect up to 2. This 2,048 Wh LFP battery weighs 42 lb and also appears in the lists for the DELTA 3, DELTA 3 Plus, DELTA 3 1500 and DELTA 3 Max Plus, one battery each.
Stations it works with
- EcoFlow DELTA 2 MaxUp to 26,144 Wh in totalCheck price on Amazon
The maker says: "A single DELTA 2 Max can connect up to 2 Smart Extra Batteries"
- EcoFlow DELTA 3Up to 1Check price on Amazon
- EcoFlow DELTA 3 PlusUp to 1Check price on Amazon
- EcoFlow DELTA 3 1500Up to 1
- EcoFlow DELTA 3 Max PlusUp to 1Check price on Amazon
Extra batteries are locked to generation and connector. How the rules work by brand.
Where these figures come from
4 documents
- EcoFlow, manual, read October 31, 2026
- EcoFlow, manual, read October 31, 2026
- EcoFlow, manual, read October 31, 2026
- Footprint Hero, secondary, read October 31, 2026