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EcoFlow DELTA 3

The highest continuous AC rating here, with more outlets and a higher solar-input ceiling.

EF-DL-H10-3 · US 120 V · 60 Hz · Manufacturer specifications checked November 13, 2026.

A research profile, not a hands-on review. Rated capacity is not measured energy delivered to your devices.

Rated battery energy
1,024 Wh
Continuous AC total
1,800 W
Weight
12.5 kg

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Where it makes sense

Loads needing more AC output headroom or multiple outlets, within the checked 1,800 W total limit.

The main trade-off

More output headroom and expansion options, but it is the heaviest model in this catalog.

Know the limits

  • 1,024 Wh is the base battery rating, not a ChooseWatt measurement of usable AC energy.
  • The six AC outlets share 1,800 W. X-Boost is excluded from the normal continuous-output rating.
  • A 3,600 W surge claim does not confirm the start-up behavior of a specific compressor or motor.
  • The car-style and DC5521 outputs share 126 W; their individual maximum ratings cannot all be added together.
  • This is DELTA 3 EF-DL-H10-3, not DELTA 2, DELTA 3 Plus, DELTA 3 Classic or DELTA 3 1500.
  • Optional extra batteries and charging accessories are separate products; this catalog covers the base unit only.

Startup is a separate check. EcoFlow lists 3,600 W surge, without a duration or a motor-start envelope in the checked specifications. X-Boost is a separate appliance mode and is not treated as normal 1,800 W continuous output.

How long for a steady load?

Estimate one constant AC load from the rated battery energy. This is a mathematical scenario, not a measured runtime or a startup check.

Use a constant load of at least 0.01 W, not a cycling appliance’s maximum watts.

Enter a load to calculate an estimate.

Default illustrative assumptions: 90% usable charge range, 85% conversion efficiency, 3 W output-equivalent idle draw. A saved plan supplies your own assumptions instead.

Formula: rated Wh × charge range × efficiency ÷ (load W + idle W). Excludes recharging, expansion batteries, temperature effects and age. Always check continuous output and relevant startup requirements separately.

Connections and shared limits

  • 6 × 120 V AC outlets; 1,800 W total continuous
  • 2 × USB-C outputs, up to 100 W each / 200 W total
  • 2 × USB-A outputs, up to 18 W each / 36 W total
  • 1 × 12.6 V car-style output, up to 10 A
  • 2 × DC5521 outputs, up to 12.6 V / 3 A each; all 12 V outputs share 126 W

Match your actual plugs, cable ratings, voltage and device instructions. The finder’s AC estimate does not assess USB-C charging negotiation or DC-path efficiency.

Battery chemistry
LiFePO₄ (LFP)
Dimensions, with axis order
20.2 × 39.76 × 28.36 cm (W × D × H; manual order)

Solar charging: the input limits

Up to 500 W · 11–60 V · 15 A maximum

One XT60 solar/car input: solar 11–60 V, 15 A and 500 W maximum. The manual requires the connected panel array to have a total open-circuit voltage (Voc) no greater than 60 V and a total short-circuit current (Isc) no greater than 15 A. For the current check, use Isc, not the operating current at maximum power (Imp). Check Voc for cold-weather conditions and follow the panel manual for series or parallel connections. These are input ceilings, not a promise of solar harvest.

These are manufacturer input ceilings. They do not predict solar harvest, charge time, connector compatibility or panel suitability in your conditions. Solar energy is not credited in the finder.

What we verified

We checked the model identity and the specifications below against manufacturer documents. We have not bought, physically tested, photographed or measured this model.

  1. EcoFlow DELTA 3 user manual — US examples; solar charging and technical specifications, PDF pp. 16 and 25–27Checked 2026-11-13 · Manufacturer source · EF-DL-H10-3, US-variant
    • EF-DL-H10-3; 1,024 Wh LFP; approximately 12.5 kg; 202 × 397.6 × 283.6 mm W × D × H.
    • US/CA 120 V, 1,800 W total AC output; 3,600 W surge without a stated duration.
    • USB-C 100 W each / 200 W total; USB-A 18 W each / 36 W total; all 12 V outputs share 126 W.
    • XT60 solar input 11–60 V, 15 A, 500 W maximum; X-Boost is a separate feature.
    • Solar charging instructions require the connected panel array to stay within 60 V total open-circuit voltage (Voc) and 15 A total short-circuit current (Isc). Isc is distinct from maximum-power operating current (Imp).
  2. EcoFlow US — DELTA 3 product specificationsChecked 2026-11-13 · Manufacturer source · EF-DL-H10-3, US-variant
    • Cross-checks capacity, chemistry, weight, 1,800 W total AC, six AC outlets, two USB-C, two USB-A, one car-style and two DC5521 outputs; solar ceiling 500 W and optional expansion batteries.

Specifications can change. Match the model code and US electrical version on the current manufacturer page and product label before buying. Read our research and calculation method.

Amazon listing identity check

Amazon title specifies DELTA 3, 1024 Wh and 1800 W; product details identify EF-DL-H10-3, US 120 V and one station with charging cable and guide. This selected variant is not Plus, Classic or a solar-panel bundle. A live neutral-page check on November 13, 2026 confirmed 1024 Wh, 120 V, 1800 W and one station with AC cable and documentation.

Inspect the listing identity sourceChecked 2026-11-13 · ASIN B0DCBYMC9D · US

This identifies the researched listing, not current stock, seller, price or a guarantee against later variant changes. Check the selected model and included items at the retailer.