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EcoFlow vs Jackery: the 1 kWh head-to-head

By the Plain Prepper editors. Updated 2026-10-15.

We research products from makers' specs, manuals and safety agencies; we do not run hands-on tests. Links to Amazon may earn us a commission at no cost to you. How this works.

Quick answer

Matched at about 1 kWh, the EcoFlow DELTA 3 Plus and Jackery Explorer 1000 v2 split the difference. EcoFlow lists more AC output (1,800 W vs 1,500 W), 2.5 times the solar input (1,000 W vs 400 W) and faster UPS switching (under 10 ms vs within 20 ms). Jackery lists slightly more capacity (1,070 vs 1,024 Wh) and is 3.8 lb lighter at 23.8 lb. Both use LFP cells rated for 4,000 cycles. Both brands tie warranty coverage to buying from an authorized seller, so on Amazon choose listings sold by the brand.

The two 1 kWh stations side by side

Spec	EcoFlow DELTA 3 Plus	Jackery Explorer 1000 v2
Capacity	1,024 Wh	1,070 Wh
AC output	1,800 W (surge 3,600 W)	1,500 W (surge 3,000 W)
AC outlets	6	3
Solar input	2 ports, 500 W each	2 ports, 200 W each (400 W max)
UPS switchover	Under 10 ms	Within 20 ms
Weight	27.6 lb	About 23.8 lb
Cycle rating	4,000 cycles to 80%+	4,000 cycles to 70%+
Fastest USB-C	2 ports at 140 W	1 port at 100 W

By energy per pound, Jackery packs about 45 Wh/lb (1,070 divided by 23.8) against EcoFlow's 37 Wh/lb (1,024 divided by 27.6). EcoFlow answers with more outlets and higher output across the board.

Where EcoFlow pulls ahead

• Solar: two inputs at up to 500 W each, or 1,000 W total, 2.5 times Jackery's 400 W.
• Output: 1,800 W continuous with a 3,600 W surge, and an X-Boost mode EcoFlow lists for devices up to 2,200 W.
• Expansion: EcoFlow lists support for its DELTA 3, DELTA 2, DELTA 2 Max and DELTA Pro 3 extra batteries.
• Other inputs: 1,500 W AC charging, 800 W car charging and a smart generator input.

EcoFlow's spec footnotes say its figures come from its own internal measurements and vary with conditions such as temperature.

Where Jackery pulls ahead

• Weight: about 23.8 lb, 3.8 lb lighter than the DELTA 3 Plus, with 46 Wh more capacity.
• Emergency charging mode: the manual describes a fast AC charging mode switched on in the app, but says to use it only when necessary, not for regular long-term use.
• Footprint: 12.87 x 8.82 x 9.72 in, against EcoFlow's 16 x 8.0 x 11 in.

Jackery's lower cycle rating threshold (70% capacity rather than EcoFlow's 80%) means its 4,000-cycle claim ends at a lower remaining capacity, so the two cycle numbers are not equal.

UPS: what the switch times mean

Both can pass wall power through and switch to battery when the grid drops:

• EcoFlow lists switching in under 10 ms.
• Jackery says the 1000 v2 switches to battery within 20 ms, does not support 0 ms switching, and should not be used with equipment that needs uninterruptible power, such as data servers and workstations. It recommends trying it several times with your device first and connecting only one device.

Jackery's warning about servers and workstations is a reminder that pass-through switching still has a gap. Plan backup for medical equipment with your provider.

Warranty terms when you buy online

The warranty fine print is where buying on Amazon matters:

• Jackery: its manual says the warranty applies only to purchases from the official Jackery website, Jackery-branded third-party platforms or local authorized dealers. It gives a 3-year standard term plus a 2-year extension if you register. Its product page instead says the extra 2 years are exclusive to jackery.com, so confirm with Jackery which applies to your purchase.
• EcoFlow: lists a 5-year warranty for the DELTA 3 Plus, and its warranty policy excludes products bought from unauthorized sellers and requires proof of purchase from an authorized seller.

On Amazon, choose a listing sold by the brand's official store, keep the receipt, and register the product with the maker; if a seller is unfamiliar, ask the brand whether it is authorized.

What to look for when you buy

Questions people ask

Is EcoFlow or Jackery better?

At 1 kWh, EcoFlow's DELTA 3 Plus lists more output, solar input and faster UPS switching; Jackery's Explorer 1000 v2 is lighter with slightly more capacity.

Which charges faster from solar?

EcoFlow: two 500 W inputs (1,000 W total) against Jackery's two 200 W inputs (400 W total).

Does buying on Amazon affect the warranty?

Both brands limit warranty to authorized or brand-run sellers, so choose listings sold by the brand's official store and keep proof of purchase.

Can either run a computer through a power cut?

Both pass power through and switch to battery: EcoFlow lists under 10 ms, Jackery within 20 ms and not for data servers or workstations.

Sources

• DELTA 3 Plus portable power station: specs, EcoFlow
• Warranty policy, EcoFlow
• Explorer 1000 v2 user manual, Jackery
• Explorer 1000 v2 portable power station, Jackery

Sources checked 2026-10-15.