A “4,000 W” power station is two numbers wearing one label. Watts are the ceiling on what you can switch on at once; watt-hours are how much energy is in the battery. The EcoFlow DELTA Pro 3 holds 4,000 W and stores 4,096 Wh on the nameplate — and those two facts answer two different questions.
This page answers the first one. EcoFlow publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure, and this page will not turn the nameplate into hours.
The three numbers that decide everything else
Continuous output4,000 W
Official spec · verified 2026-08-01 · high confidence
Surge ceiling8,000 W
Official spec · verified 2026-08-01 · high confidence
Nominal capacity4,096 Wh
Official spec · verified 2026-08-01 · high confidence
No usable-capacity figure for this model
The brand publishes a nameplate watt-hour number and nothing about depth of discharge or inverter efficiency. Dividing the nameplate by a load would be wrong by 20–35%, so this page shows the nameplate for what it is and refuses to turn it into hours.
Missing: station.usable_capacity_wh
official · verified 2026-08-01 · EU 230 V unit
What EcoFlow DELTA Pro 3 runs
Every row is a live calculation against this machine's continuous output, surge ceiling and
inverter waveform — running watts, start-up inrush and duty cycle on the appliance side. Of 30 appliance profiles, 24 run, 4 are a tight fit and 2 are out of reach. The percentage is the
load as a share of continuous output; anything past 82% drops out of the green.
The binding constraint is voltage, not watts: open-circuit voltage RISES as it gets colder, and
an array that is fine at noon can be over the MPPT ceiling at dawn. Each row is the engine's
largest legal array for this station, with Voc corrected to -10 °C ambient
. Only panels whose datasheet publishes a voltage temperature coefficient are evaluated — the
others cannot be corrected, and an under-corrected array is what destroys an MPPT input.
Jackery SolarSaga 100 Air 12 × 100 W · 4S3P · 1200 W array
Voc at the design minimum: 129.2 V
Panel connector: DC8020Needs a dc8mm-to-xt60 adapter.
Renogy 100W 12V Monocrystalline Solar Panel (Compact Design) 10 × 100 W · 5S2P · 1000 W array
Voc at the design minimum: 133.4 V
Panel connector: Solar Connectors
Renogy 200W 12V Monocrystalline Solar Panel 4 × 200 W · 4 in series · 800 W array
Voc at the design minimum: 118.6 V
Panel connector: MC4Needs a mc4-to-xt60 adapter.
Every field we hold on this machine
Each figure carries the tier it came from and the date it was checked. A blank is never left
blank: a field the manufacturer does not publish says so, and a field two manufacturer sources
disagree about says that instead of picking one.
AC output
What the inverter can hold, what it can start, and what shape the wave is.
Continuous output4,000 W Official spec · verified 2026-08-01 · high confidence
Surge ceiling8,000 W Official spec · verified 2026-08-01 · high confidence
Surge durationNot published by the manufacturer no figure to date
Boost modeYes Official spec · verified 2026-08-01 · high confidence
Sold as “X-Boost”.
Boost output6,000 W Official spec · verified 2026-08-01 · high confidence
The verdict engine never counts boost output as continuous output: it works by dropping voltage and can fail on motors and compressors.
Inverter waveformPure sine wave Official spec · verified 2026-08-01 · high confidence
Inverter efficiencyNot published by the manufacturer no figure to date
AC voltage230 V Official spec · verified 2026-08-01 · high confidence
AC frequency50 Hz Official spec · verified 2026-08-01 · high confidence
Outlet standardSchuko Type F (CEE 7/3) + CEE 16A Official spec · verified 2026-08-01 · high confidence
UPS switchover10 ms Official spec · verified 2026-08-01 · high confidence
Idle drawNot published by the manufacturer no figure to date
What the machine consumes just being switched on. It sits in the runtime denominator, and a brand that does not publish it makes every runtime optimistic.
Battery and energy
The nameplate, what is actually retrievable from it, and how long the cells last.
Nominal capacity4,096 Wh Official spec · verified 2026-08-01 · high confidence
Usable capacityNot published by the manufacturer no figure to date
Not published, and not derivable: the brand states neither depth of discharge nor inverter efficiency for this model.
Depth of dischargeNot published by the manufacturer no figure to date
ChemistryLiFePO4 (LFP) Official spec · verified 2026-08-01 · high confidence
Cycle life4,000 cycles Official spec · verified 2026-08-01 · high confidence
Capacity at end of cycle life80% Official spec · verified 2026-08-01 · high confidence
WarrantyNot published by the manufacturer no figure to date
Discharge temperature (min)-10 °C Official spec · verified 2026-08-01 · high confidence
Discharge temperature (max)45 °C Official spec · verified 2026-08-01 · high confidence
Charge temperature (min)0 °C Official spec · verified 2026-08-01 · high confidence
Charging and expansion
How fast it refills from the wall, and whether more battery can be bolted on.
AC input (max)2,900 W Official spec · verified 2026-08-01 · high confidence
Wall charge, 0–100%Not published by the manufacturer no figure to date
Wall charge, 0–80%Not published by the manufacturer no figure to date
Car input (max)Not published by the manufacturer no figure to date
Combined input (max)Not published by the manufacturer no figure to date
ExpandableYes Official spec · verified 2026-08-01 · high confidence
Capacity with expansion12,000 Wh Official spec · verified 2026-08-01 · medium confidence
Extra batteries supported2 Official spec · verified 2026-08-01 · high confidence
Solar input
The window an array has to land inside. Voltage is the constraint that burns hardware.
Solar input (max)2,600 W Official spec · verified 2026-08-01 · high confidence
MPPT window (min)11 V Official spec · verified 2026-08-01 · high confidence
MPPT window (max)150 V Official spec · verified 2026-08-01 · high confidence
Input current (max)20 A Official spec · verified 2026-08-01 · high confidence
Solar connectorXT60 (High-PV) / XT60i (Low-PV) Official spec · verified 2026-08-01 · high confidence
Physical and travel
Weight, size, noise — and whether an airline will let it on board.
Weight51.5 kg Official spec · verified 2026-08-01 · high confidence
Length693 mm Official spec · verified 2026-08-01 · high confidence
Width410 mm Official spec · verified 2026-08-01 · high confidence
Height341 mm Official spec · verified 2026-08-01 · high confidence
NoiseNot published by the manufacturer no figure to date
App controlYes Official spec · verified 2026-08-01 · high confidence
ConnectivityWi-Fi, Bluetooth, can Official spec · verified 2026-08-01 · high confidence
Capacity for airline rules4,096 Wh Official spec · verified 2026-08-01 · high confidence
IATA lets passengers carry lithium batteries up to 100 Wh freely and 100–160 Wh with airline approval. Above that, no passenger aircraft.
Each link goes to that machine's own record. Every record holds the same fields in the
same order and states the same tier and date beside each one, so two of them read
side by side compare cleanly.
Where to go next
Questions people ask about this machine
Will an EcoFlow DELTA Pro 3 run a full-size refrigerator?
Yes. Against the EU 230 V record, the full-size refrigerator draws 55 W running · 286 W at start-up — 1.4% of this machine's continuous output. That verdict is a calculation from running watts, start-up surge and inverter waveform, not a lookup, and the full working is one click away in the table above.
Why can't an EcoFlow DELTA Pro 3 run a pancake air compressor?
On the EU 230 V record the binding constraint is the surge ceiling. The pancake air compressor needs 1,800 W running · 10,800 W at start-up, and at 45% of continuous output there is no headroom to give. No accessory fixes this one — it takes a machine with a bigger inverter.
How long will an EcoFlow DELTA Pro 3 run my appliances?
We will not put a number on it, and that is deliberate. A runtime needs a usable-capacity figure, and EcoFlow publishes no depth of discharge or inverter efficiency for this model — only a nameplate watt-hour rating. Dividing that nameplate by your load produces a confident-looking figure that is typically 20–35% too high. What this page gives you instead is every load's energy rate in watt-hours per hour, which needs no battery figure at all and is the number you actually size against.
Can you take an EcoFlow DELTA Pro 3 on a plane?
No. At 4,096 Wh it is far above the 160 Wh ceiling that airlines apply to lithium batteries in the cabin, and lithium batteries of this size are not accepted in checked baggage either. The 100 Wh / 160 Wh thresholds come from the IATA dangerous-goods rules that carriers implement; check your airline before travelling, because the approval step above 100 Wh is theirs to give.
Is the EU EcoFlow DELTA Pro 3 the same as the US one?
No, and we keep them as two separate records for that reason. This one is built for 230 V mains and the US version for 120 V, which changes the outlets, the certifications and the charging figures. Where the brand publishes different numbers for the two, this page shows only the ones for the EU 230 V version.