Stack / EF-DL-H10-4

EcoFlow DELTA 3 Plus

Updated · 28 Oct 2026 · Sheet checked · 28 Oct 2026

It depends — pre-order; 1,800 W continuous / 1,024 Wh LFP at 27.6 lb; expandable to about 5 kWh; 3,600 W surge and X-Boost ≠ continuous; 120 V only

Mid-size LiFePO₄ station for a fridge, network, and lights on a short outage: 1,800 W continuous and 1,024 Wh.

Exact model EF-DL-H10-4 (US store SKU EFDELTA3P-US, 120 V). Not the DELTA 3, DELTA 3 Max, or live DELTA 2 and DELTA 2 Max.

What it is

Portable power station: LiFePO₄ pack, 1,024 Wh (51.2 V, 20 Ah), pure-sine inverter 1,800 W total at 120 V. Six AC outlets share it. Also two 140 W USB-C, two 36 W USB-A, a 12.6 V / 10 A car socket, and two DC5521. No TT-30R in EcoFlow's spec table. 27.6 lb (12.5 kg), about 16 × 8.0 × 11 in. Cycle claim 4,000 to 80%. Warranty 5 years.

Recharge: 1,500 W AC (manual: 100–120 V, 15 A input), 0–100% in 56 min per EcoFlow. Solar: two XT60 inputs, 11–60 V, 15 A, 500 W each, 1,000 W total.

Expansion: one extra battery via XT150 cable. A DELTA 3 Extra Battery (1,024 Wh) gives about 2 kWh; EcoFlow's "up to 5 kWh" needs the larger DELTA Pro 3 Extra Battery. More hours, same 1,800 W inverter.

AC timeout: per the manual, idle AC shuts off, and a cycling fridge can trip it; set it to "never" in the app.

Price: US$719.00 sale (list $799.00), standalone unit on us.ecoflow.com, checked 28 Oct 2026; pre-order, not shipping yet; EcoFlow says late November. Links: no affiliate.

What it will actually run

Running watts first: 1,800 W continuous. Surge second: 3,600 W, not continuous. X-Boost (off by default) runs heating loads by sagging voltage: 2,200 W (spec table) or 2,600 W at 120 V (manual). Per the manual, X-Boost is off while plugged into AC.

Outage Stack math (not manufacturer): usable Wh ≈ rated Wh × 0.85. 1,024 × 0.85 ≈ 870 Wh. At 500 W: 870 ÷ 500 ≈ 1.7 h. StorageReview metered 910 Wh out (about 89%); Best Batteries got 860 Wh from a 230 V socket (non-US test unit); ×0.85 holds.

Will run (Outage Stack estimates)

a kitchen fridge most of a day if its EnergyGuide figure fits under 870 Wh (AC timeout off)
modem, router, and ONT for a day or more
a CPAP overnight (not life-support, per manual)
LED lights and laptops
a furnace blower for a few hours after measuring its running watts

Skip or measure first

a well or sump pump without checking start current
any 240 V load
a window AC beyond about an hour
a space heater on X-Boost beyond about 25 minutes
charging below 32 °F

The Solar Lab ran a 1,573 W load and saw internal temps reach 138 °F with fans cycling oddly.

Specs that matter

Continuous: 1,800 W @ 120 V, shared across six outlets
Surge: 3,600 W; X-Boost 2,200–2,600 W (table vs manual), heating only, not on AC input
Capacity: 1,024 Wh LFP; about 2 kWh (DELTA 3 EB) or 5 kWh (DELTA Pro 3 EB)
AC charge: 1,500 W; 100% in 56 min (EcoFlow)
Solar: 1,000 W max, two XT60, 11–60 V
UPS: <10 ms; StorageReview measured just over 8 ms
Weight: 27.6 lb; 120 V only; no TT-30R listed

Who should skip it

You need a fridge, furnace blower, and network for a full day without recharging. Add a battery or pick a 2 kWh station.
You read "3,600 W" or "2,600 W" as running watts; it is 1,800 W.
You need an RV TT-30R or 240 V for a well pump.
You own a DELTA 2: same 1,024 Wh and 1,800 W; the Plus adds faster solar and USB-C, not runtime.

Verdict

It depends. Pre-order; EcoFlow says late November. About 870 Wh at the outlet, under-10 ms switchover, 56-minute AC recharge, and a path to about 5 kWh, at 27.6 lb for US$719 on sale. Watch heat on long loads near 1,600 W. If the label does not say EF-DL-H10-4 / DELTA 3 Plus, this page does not apply.

Sources: EcoFlow US — DELTA 3 Plus product page, specs, price · EcoFlow — DELTA 3 Plus user manual (model EF-DL-H10-4, spec table, X-Boost, AC timeout) · StorageReview — DELTA 3 Plus review (metered output, UPS transfer) · Best Batteries — DELTA 3 Plus measurements · The Solar Lab — DELTA 3 Plus review (heat under load) · Outage Stack — EcoFlow DELTA 2 / DELTA 2 Max (live peers). Last checked: 2026-10-28.

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