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EcoFlow DELTA Pro / DELTA Pro Ultra models explained
4 stations across 4 generations, from 3,600 to 12,288 Wh.
By the Power Station Chart team, from EcoFlow's manuals and spec pages. Last reviewed October 31, 2026.
The DELTA Pro / DELTA Pro Ultra line in brief
Panel voltage splits this family in two. The DELTA Pro lists 11 V to 150 V and the DELTA Pro 3 lists 30 V to 150 V, both through XT60. The DELTA Pro Ultra lists 80 V to 450 V and the Ultra X lists 80 V to 500 V, both through MC4. Capacity climbs from 3,600 Wh to 4,096 Wh, 6,144 Wh and 12,288 Wh, with AC output from 3,600 W to 12,000 W. All four expand, with the Ultra X reaching 61,440 Wh in a full system, and all four carry a 5-year warranty. The Pro lists split-phase output with a kit, while the other three list it outright.
Every DELTA Pro / DELTA Pro Ultra station, largest first
- EcoFlow DELTA Pro Ultra X 12,288 Wh Check price on Amazon
AC output 12,000 W, Solar input 10,000 W, Battery LFP, Rated cycles 3,500 to 80%
- EcoFlow DELTA Pro Ultra 6,144 Wh
AC output 7,200 W, Solar input 5,600 W, Battery LFP, Rated cycles 3,500 to 80%
- EcoFlow DELTA Pro 3 4,096 Wh Check price on Amazon
AC output 4,000 W, Solar input 2,600 W, Battery LFP, Rated cycles 4,000 to 80%
- EcoFlow DELTA Pro 3,600 Wh Check price on Amazon
AC output 3,600 W, Solar input 1,600 W, Battery LFP, Rated cycles 3,500 to 80%
What v2, Plus, Gen 2, Max and Ultra mean across brands.
By the numbers
| Median capacity | 5,120 Wh |
|---|---|
| Spread | 3,600 to 12,288 Wh |
| Most common battery | LFP, on 4 of 4 |
| Listed on Amazon | 3 of 4 |
Standouts by the makers' figures
- EcoFlow DELTA Pro Ultra X12,288 WhMost capacityCheck price on Amazon
- EcoFlow DELTA Pro99 lbLightestCheck price on Amazon
- EcoFlow DELTA Pro Ultra X12,000 WMost AC outputCheck price on Amazon
- EcoFlow DELTA Pro Ultra X10,000 WMost solar inputCheck price on Amazon
- EcoFlow DELTA Pro36 Wh per lbMost watt-hours per poundCheck price on Amazon
- EcoFlow DELTA Pro 34,000Most rated cyclesCheck price on Amazon
- EcoFlow DELTA Pro Ultra X5 yearsLongest warrantyCheck price on Amazon
FAQ
How much solar can each DELTA Pro take?
The DELTA Pro takes 1,600 W and the Pro 3 takes 2,600 W. The Ultra takes 5,600 W and the Ultra X takes 10,000 W.
What does the DELTA Pro 3 change from the DELTA Pro?
It holds 4,096 Wh against 3,600 Wh and delivers 4,000 W against 3,600 W. Wall charging rises from 3,000 W to 4,800 W, and UPS switchover drops from 30 ms to 10 ms.
Where these figures come from
12 documents
- 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 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