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EcoFlow DELTA Pro 3 Smart Extra Battery
4,096 Wh that works with 5 stations, reaching 12,288 Wh in the largest setup.
- 4,096 Whcapacity
- 72.75 lbweight
- LFPbattery type
By the Power Station Chart team, from the maker's compatibility pages. Last reviewed October 31, 2026.
The DELTA Pro 3 Smart Extra Battery in brief
Two of these beside a DELTA Pro 3 bring it to 12,288 Wh, which is EcoFlow's stated limit of 2 extra batteries. One battery stores 4,096 Wh in LFP cells and weighs 72.75 lb. The DELTA 3, DELTA 3 Plus, DELTA 3 1500 and DELTA 3 Max Plus are listed with it too, at one battery each.
Stations it works with
- EcoFlow DELTA Pro 3Up to 212,288 Wh in totalCheck price on Amazon
The maker says: "supports connecting up to 2 extra batteries to expand capacity"
- 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
3 documents
- EcoFlow, manual, read October 31, 2026
- EcoFlow, manual, read October 31, 2026
- Footprint Hero, secondary, read October 31, 2026