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EcoFlow Delta Pro Ultra
At a glance
Full specs โ- Capacity
- 6144 Wh
- Usable energy
- 5530 Wh
- AC output
- 7200 W
- Surge
- 21600 W
- Chemistry
- LiFePO4
- Cycle life
- 4000 cycles
- Max solar
- 5600 W
- Weight
- 187 lb
Best for
Whole-home essentials
Long outages
Off-grid living
Expandable
Estimated usable capacity
Estimate
4,701 Wh
at the outlet ยท ~77% of the 6,144 Wh rating
An estimate, not a measurement: we derate the 6,144 Wh rating for a safe depth-of-discharge and ~15% inverter loss (DCโAC). We haven't bench-tested this unit yet, so treat it as a solid approximation.
EcoFlow
EcoFlow Delta Pro Ultra
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4.7 / 5
The EcoFlow Delta Pro Ultra is a 6144Wh LiFePO4 portable power station delivering 7200W continuous (21600W surge). Rated for ~4000 cycles and up to 5600W of solar input, with expandable capacity.
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Affiliate link โ we may earn a commission at no cost to you.
Full specifications
| Battery capacity | 6144 Wh |
| Usable capacity | 5530 Wh |
| AC output | 7200 W |
| Surge output | 21600 W |
| Chemistry | LiFePO4 |
| Cycle life | 4000 cycles |
| Max solar input | 5600 W |
| Expandable | Yes |
| Weight | 187 lb |
| Warranty | 5 yrs |
| Ports | Whole-home panel | 2x USB-C | 2x USB-A | L14-30 |
Video review
We recommend watching a real-world test before buying. Here's a hands-on review of the Delta Pro Ultra:
โถWatch EcoFlow Delta Pro Ultra on YouTubeHobotech / DIY Solar PowerChannels we trust for hands-on testing
Independent reviewers who bench-test capacity, inverters and real-world runtime.
Hobotech
Rigorous real-world capacity & inverter testing.
DIY Solar Power with Will Prowse
The go-to for DIY off-grid and teardown reviews.
The Solar Lab
Real world testing of solar panels and power stations.
How long will the Delta Pro Ultra runโฆ
Estimated runtime per full charge for common loads.
Phone charge (about 19.6 days (~470 hours))
Laptop (about 3.3 days (~78 hours))
Wi-Fi router / modem (about 13.1 days (~313 hours))
LED lights (per bulb) (about 19.6 days (~470 hours))
CPAP machine (about 4.9 days (~118 hours))
Mini fridge (about 3.3 days (~78 hours))
Full-size fridge (about 1.3 days (~31 hours))
12V cooler / fridge (about 4.4 days (~105 hours))
Microwave (1000W) (about 3.9 hours)
Coffee maker (about 5 hours)
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