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EcoFlow DELTA models explained
11 stations across 2 generations, from 960 to 3,072 Wh.
By the Power Station Chart team, from EcoFlow's manuals and spec pages. Last reviewed October 31, 2026.
The DELTA line in brief
On DELTA 3 names, Plus has meant more solar input each time it appears. The DELTA 3 takes 500 W and the DELTA 3 Plus takes 1,000 W. The DELTA 3 Max takes 500 W and the Max Plus takes 1,000 W, with AC output rising from 2,400 W to 3,000 W. The DELTA 3 Ultra takes 800 W and the Ultra Plus takes 1,600 W. The family has 11 stations, from the DELTA 3 1000 Air at 960 Wh up to the Ultra pair at 3,072 Wh. The Air is the outlier, delivering 500 W with a 2-year warranty. The DELTA 2 is no longer sold new by the maker in its US store, and the DELTA 3 matches its capacity.
Every DELTA station, largest first
- EcoFlow DELTA 3 Ultra 3,072 Wh Check price on Amazon
AC output 3,600 W, Solar input 800 W, Battery LFP, Rated cycles 4,000 to 80%
- EcoFlow DELTA 3 Ultra Plus 3,072 Wh Check price on Amazon
AC output 3,600 W, Solar input 1,600 W, Battery LFP, Rated cycles 4,000 to 80%
- EcoFlow DELTA 2 Max 2,048 Wh Check price on Amazon
AC output 2,400 W, Solar input 1,000 W, Battery LFP, Rated cycles 3,000 to 80%
- EcoFlow DELTA 3 Max 2,048 Wh Check price on Amazon
AC output 2,400 W, Solar input 500 W, Battery LFP, Rated cycles 4,000 to 80%
- EcoFlow DELTA 3 Max Plus 2,048 Wh Check price on Amazon
AC output 3,000 W, Solar input 1,000 W, Battery LFP, Rated cycles 4,000 to 80%
- EcoFlow DELTA 3 1500 1,536 Wh
AC output 1,800 W, Solar input 500 W, Battery LFP, Rated cycles 3,000 to 70%
- EcoFlow DELTA 2 1,024 Wh
AC output 1,800 W, Solar input 500 W, Battery LFP, Rated cycles 4,000 to 80%
- EcoFlow DELTA 3 1,024 Wh Check price on Amazon
AC output 1,800 W, Solar input 500 W, Battery LFP, Rated cycles 4,000 to 80%
- EcoFlow DELTA 3 Plus 1,024 Wh Check price on Amazon
AC output 1,800 W, Solar input 1,000 W, Battery LFP, Rated cycles 4,000 to 80%
- EcoFlow DELTA 3 Classic 1,024 Wh Check price on Amazon
AC output 1,800 W, Solar input 500 W, Battery LFP, Rated cycles 4,000 to 80%
- EcoFlow DELTA 3 1000 Air 960 Wh
AC output 500 W, Solar input 500 W, Battery LFP, Rated cycles 3,000 to 80%
- EcoFlow DELTA 2 vs DELTA 3
- EcoFlow DELTA 3 vs DELTA 3 Plus
- EcoFlow DELTA 2 vs DELTA 3 Classic
- EcoFlow DELTA 2 Max vs DELTA 3 Max
What v2, Plus, Gen 2, Max and Ultra mean across brands.
By the numbers
| Median capacity | 1,536 Wh |
|---|---|
| Spread | 960 to 3,072 Wh |
| Most common battery | LFP, on 11 of 11 |
| Listed on Amazon | 8 of 11 |
Standouts by the makers' figures
- EcoFlow DELTA 3 Ultra3,072 WhMost capacityCheck price on Amazon
- EcoFlow DELTA 3 1000 Air21.8 lbLightest
- EcoFlow DELTA 3 Ultra3,600 WMost AC outputCheck price on Amazon
- EcoFlow DELTA 3 Ultra Plus1,600 WMost solar inputCheck price on Amazon
- EcoFlow DELTA 3 Max46 Wh per lbMost watt-hours per poundCheck price on Amazon
- EcoFlow DELTA 3 Ultra4,000Most rated cyclesCheck price on Amazon
- EcoFlow DELTA 3 Ultra5 yearsLongest warrantyCheck price on Amazon
FAQ
Which DELTA models can take extra batteries?
Seven of the 11: the DELTA 2, DELTA 2 Max, DELTA 3, DELTA 3 Plus, DELTA 3 1500, DELTA 3 Max Plus and DELTA 3 Ultra Plus. The Classic, 1000 Air, 3 Max and 3 Ultra do not.
What is the difference between the DELTA 3 and DELTA 3 Classic?
Both hold 1,024 Wh and deliver 1,800 W. The DELTA 3 weighs 27.6 lb, charges from the wall at 1,500 W and expands to 5,120 Wh. The Classic weighs 26.6 lb, charges at 1,400 W and does not expand.
How quickly does a DELTA recharge from the wall?
The DELTA 3 lists 1,500 W and 0.93 hours. The DELTA 2 lists 1,200 W and 1.2 hours, and the DELTA 2 Max lists 1,800 W and 1.33 hours.
Where these figures come from
29 documents
- EcoFlow, manual, read October 31, 2026
- Footprint Hero, secondary, read October 31, 2026
- EcoFlow, manual, read October 31, 2026
- Footprint Hero, secondary, read October 31, 2026
- EcoFlow US store, spec page, read October 31, 2026
- EcoFlow, manual, read October 31, 2026
- Footprint Hero, secondary, read October 31, 2026
- EcoFlow US store, spec page, read October 31, 2026
- EcoFlow, manual, read October 31, 2026
- Footprint Hero, secondary, read October 31, 2026
- EcoFlow, manual, read October 31, 2026
- Footprint Hero, secondary, read October 31, 2026
- EcoFlow US store, spec page, read October 31, 2026
- EcoFlow, manual, read October 31, 2026
- Footprint Hero, secondary, read October 31, 2026
- EcoFlow, manual, read October 31, 2026
- Footprint Hero, secondary, read October 31, 2026
- EcoFlow US store, spec page, read October 31, 2026
- EcoFlow, manual, read October 31, 2026
- EcoFlow US store, spec page, read October 31, 2026
- Footprint Hero, secondary, read October 31, 2026
- EcoFlow, manual, read October 31, 2026
- Footprint Hero, secondary, read October 31, 2026
- EcoFlow US store, spec page, read October 31, 2026
- EcoFlow, manual, read October 31, 2026
- Footprint Hero, secondary, read October 31, 2026
- EcoFlow US store, spec page, read October 31, 2026
- EcoFlow, manual, read October 31, 2026
- Footprint Hero, secondary, read October 31, 2026