SiriusWatts
EcoFlow Delta Pro Ultra

At a glance

Full specs ↓
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 · ~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 (DC→AC). We haven't bench-tested this unit yet, so treat it as a solid approximation.

EcoFlow

EcoFlow Delta Pro Ultra

★ 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.

$3,799 $0.687/Wh
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Where to buy 1 retailer
EcoFlow
Updated about 19 hours ago
$3,799
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Prices refresh daily and may change — confirm on the retailer's site.

Full specifications

Battery capacity6144 Wh
Usable capacity5530 Wh
AC output7200 W
Surge output21600 W
ChemistryLiFePO4
Cycle life4000 cycles
Max solar input5600 W
ExpandableYes
Weight187 lb
Warranty5 yrs
PortsWhole-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:

Channels 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.

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