Manufacturer research · 2026-10-17

DELTA Pro 3 vs DELTA 3

Two ways to plan backup power. Compare the details that matter to your home.

EcoFlow

DELTA 3

Nominal capacity: 1,024 Wh — source for Nominal capacity, checked 2026-10-04 (opens in a new tab)
Continuous AC output: 1,800 W — source for Continuous AC output, checked 2026-10-04 (opens in a new tab)
Base-unit weight: 27.6 lb — source for Base-unit weight, checked 2026-10-04 (opens in a new tab)

May fit: Selected 120 V essentials after checking running watts, startup demand, and daily energy.

Consider another setup: Loads requiring 240 V or more than the continuous output rating.

Manufacturer research; no hands-on testing. Source records checked on 2026-10-04.

Compare the 4,096 Wh, 4,000 W, 120V/240V DELTA Pro 3 against the 1,024 Wh, 1,800 W, 120V DELTA 3 across capacity,stair portability, solar input, and panel integration.

How the options differ

Different households can reach different answers

We compare the US models using their manufacturer specifications and manuals, then interpret the differences for household backup planning. We have not tested either unit. Capacity is nominal battery energy, not measured AC output. We do not rank by commission, current price, star ratings, or advertised boosted-power modes. Per-field source dates appear in the specification table.

Best fit by need

You need 240 V output, 4,000 W continuous power, or multi-kWh transfer-switch backup: Examine EcoFlow DELTA Pro 3

It is the only station in our catalog with documented 240 V output, 4,096 Wh base capacity, and 2,600 W solar input, provided you can stage a 113.54 lb unit on level ground.
You need a carryable 120 V station for a refrigerator, CPAP, and router: Examine EcoFlow DELTA 3

At 27.6 lb and 1,024 Wh, DELTA 3 is built for plug-in 120 V room essentials without electrical panel work.
You want another 120 V 1.1 kWh point of comparison: Compare BLUETTI AC180

AC180 provides 1,152 Wh and 1,800 W continuous 120 V output at 35.27 lb.

Documented specifications and the older alternative

Manufacturer specifications, not hands-on measurements. Each figure includes its source and check date. “Not documented” means the reviewed record does not establish the feature.

Compare columns. Swipe or scroll horizontally on smaller screens.

Documented specifications and the older alternative. Manufacturer research only.
What matters	EcoFlow DELTA Pro 3	EcoFlow DELTA 3	BLUETTI AC180
Stored energy Nominal capacity, before reserve and AC conversion losses.	4,096 Wh Source · checked 2026-08-20 (opens in a new tab)	1,024 Wh Source · checked 2026-10-04 (opens in a new tab)	1,152 Wh Source · checked 2026-10-04 (opens in a new tab)
Continuous AC output The running-load limit; check motor startup separately.	4,000 W Source · checked 2026-08-20 (opens in a new tab)	1,800 W Source · checked 2026-10-04 (opens in a new tab)	1,800 W Source · checked 2026-10-04 (opens in a new tab)
Base-unit weight Consider stairs, storage, and who will carry it.	113.54 lb Source · checked 2026-08-20 (opens in a new tab)	27.6 lb Approximate net weight. Source · checked 2026-10-04 (opens in a new tab)	35.27 lb Source · checked 2026-10-04 (opens in a new tab)
Solar input ceiling An input limit, not a promise of real solar production.	2,600 W Source · checked 2026-08-20 (opens in a new tab)	500 W Exact-model manual (EF-DL-H10-3) specifies 500 W maximum; EcoFlow's product page mixes series-level DELTA 3 Plus details, so confirm the model label before applying this value. Source · checked 2026-10-04 (opens in a new tab)	500 W Source · checked 2026-10-04 (opens in a new tab)
US AC voltage Must match the appliance and connection requirements.	120/240 V documented Source · checked 2026-08-20 (opens in a new tab)	120 V only documented US/CA model AC output is 120 V. Source · checked 2026-10-04 (opens in a new tab)	120 V only documented AC180-US output is 120 V. Source · checked 2026-10-04 (opens in a new tab)
Expanded capacity Requires the manufacturer's compatible extra batteries, sold separately.	12,288 Wh maximum Single-unit maximum with two separately sold compatible extra batteries. Source · checked 2026-08-20 (opens in a new tab)	Not documented Manufacturer lists compatible extra batteries and markets expansion up to 5 kWh, but this record does not establish an exact Wh ceiling for the standalone DELTA 3 configuration. Source · checked 2026-10-04 (opens in a new tab)	Not documented Manufacturer says external batteries can charge the AC180 in Power Bank Mode; its US product FAQ says this is not capacity expansion, so no expanded capacity is counted. Source · checked 2026-10-04 (opens in a new tab)

Criterion-by-criterion record

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Criterion	Why it matters	EcoFlow DELTA Pro 3	EcoFlow DELTA 3
Voltage class and continuous output	240 V well pumps, split-phase transfer switches, and heavy circuits cannot run from a 120 V-only station.	4,000 W continuous AC output (8,000 W surge) with 120 V / 240 V output support.	1,800 W continuous AC output (3,600 W surge) at 120 V only.
Base capacity and expansion ceiling	Multi-day whole-circuit backup requires 4× to 10× more stored watt-hours than single-room appliance backup.	4,096 Wh base LFP battery, expandable up to 12,288 Wh for a single unit with two compatible extra batteries.	1,024 Wh base LFP battery designed for room-level 120 V cords.
Weight and physical staging	A 113 lb wheeled chassis cannot be carried casually up apartment stairs during a blackout.	113.54 lb (wheeled floor unit; requires ground-level or ramp staging).	27.6 lb (hand-carryable between rooms or upstairs).
Solar charging ceiling	Replenishing a 4 kWh battery requires a much larger PV input ceiling than a 1 kWh battery.	Up to 2,600 W documented solar input ceiling.	Up to 500 W documented solar input ceiling on the base EF-DL-H10-3 manual.

Before you order

Match the unit to your actual load

Write down simultaneous running watts, the largest startup demand, and measured daily watt-hours. A larger Wh number does not raise the output limit.
Check the exact US model and bundle. Panels, expansion batteries, and charging cables may be sold separately.
Read the seller, return, and warranty terms for the listing you select. A manufacturer specification is not proof that every marketplace bundle is equivalent.
Plan a test with your actual equipment before relying on it. Neither a brief UPS transfer time nor an advertised runtime guarantees compatibility with critical equipment.

Estimate battery runtime →

Manufacturer-documented model

EcoFlow DELTA 3

The base DELTA 3 is a 1,024 Wh, 1,800 W portable station for selected 120 V essentials. Start with the exact model: DELTA 3, DELTA 3 Plus, and other variants do not share every charging specification.

Nominal capacity: 1,024 Wh
Continuous AC output: 1,800 W
Base-unit weight: 27.6 lb

May fit when

Selected 120 V essentials after checking running watts, startup demand, and daily energy.
Households that need a portable unit and can recharge between interruptions.
Readers comparing documented transfer behavior with their actual equipment requirements.

Consider another setup when

Loads requiring 240 V or more than the continuous output rating.
Long outages without sufficient battery capacity or a dependable recharge plan.
A different variant if your charging requirement exceeds the base model’s documented solar input.

Review specifications and fit details

Source records checked on 2026-10-04 for the displayed figures. They are not hands-on test results. Confirm the exact model, connections, and load requirements before buying.

Older-model alternative

BLUETTI AC180

The AC180 is a roughly one-kilowatt-hour, 120 V portable battery with 1,800 W continuous output and a documented UPS switching figure of 20 ms or less. Its slightly higher nominal capacity than the DELTA 2 comes with a heavier listed base-unit weight and no directly attached expansion capacity verified in this source record. It remains an older-model alternative to Elite 100 V2.

Nominal capacity: 1,152 Wh
Continuous AC output: 1,800 W
Base-unit weight: 35.27 lb

Source records checked on 2026-10-04. This is research, not hands-on testing. Read the manufacturer manual.

Review the model guide

Evidence sources

Related specification comparisons

Compare other portable power station matchups

EcoFlow DELTA 3 vs BLUETTI Elite 100 V2 Compare DELTA 3 and Elite 100 V2 by capacity, carrying weight, solar input, and transfer behavior, with the older AC180 as a useful reference. Jackery Explorer 1000 v2 vs Anker SOLIX C1000 Gen 2 Compare Explorer 1000 v2 and SOLIX C1000 Gen 2 by continuous AC output, carrying weight, solar input ceiling, and UPS transfer limits, with BLUETTI AC180 as an older reference. EcoFlow DELTA 3 vs Jackery Explorer 1000 v2 Compare DELTA 3 and Explorer 1000 v2 by continuous AC output, carrying weight, solar input limits, and UPS transfer time, with BLUETTI AC180 as a third reference. BLUETTI Elite 100 V2 vs Anker SOLIX C1000 Gen 2 Compare Elite 100 V2 and SOLIX C1000 Gen 2 by solar charging ceiling (1,000 W vs 600 W), continuous AC output (1,800 W vs 2,000 W), and weight, with EcoFlow DELTA 3 as a third reference. EcoFlow DELTA 3 vs EcoFlow DELTA 2 Compare EcoFlow DELTA 3 and DELTA 2 across nominal capacity, surge ceiling (3,600 W vs 2,700 W), UPS transfer time (10 ms vs 30 ms), and solar input, with BLUETTI Elite 100 V2 as a reference.