ComputingAlso called: desktop, desktop computer, pc
Two numbers decide whether a power station runs a desktop PC, and readers arrive using them interchangeably. Watts are the ceiling on what the inverter can hold at any instant — this load needs 13 W of them while it runs, and a 4,600 W spike lasting a few line cycles as it powers on — which is not the quantity a station's surge rating covers, and is not held against any verdict below. Watt-hours are how much energy the battery holds. A machine can have plenty of one and not enough of the other.
Of the 26 machines in our library, 16 run it, 10 are a tight fit and 0 are out of reach. Each of those is a calculation against that machine’s continuous output, its surge ceiling and its inverter waveform — not a lookup table — and the reasoning is on every row.
The three numbers a power station is judged against
Running power13.2 W2.3–37 W Official spec · verified 2026-08-01 · high confidence
Start-up surge4,600 Wengine checks 4,600 W Official spec · verified 2026-08-01 · medium confidence
Duty cycle100% Official spec · verified 2026-08-01 · high confidence
The band is the spread across real models in this class, not a tolerance. Size against the top of it unless you know which unit you own.
Start-up figure: Manufacturer-stated
The start-up figure is published by the manufacturer for this device, so it describes the actual hardware rather than a category.
Measured duration 50 ms · Official spec · verified 2026-08-01 · high confidence
official · verified 2026-08-01 · appliance record
What actually decides it
A switch-mode supply: milliseconds, not seconds
A switching power supply charges its input capacitors at the instant it is connected, which can be a large current — but it lasts a few line cycles, two orders of magnitude shorter than the second-scale event a station’s surge rating describes. The two are not the same quantity and this site does not hold that spike against a verdict. What decides the outcome here is the steady draw, and where the power factor is poor, the VA the inverter actually sees behind it.
How long the start-up actually lasts
The measured inrush here lasts around a hundredth of a second — a capacitor charging, not a motor starting. A station’s surge rating describes a second-scale event, so the two numbers are not comparable and this one is reported but never held against a verdict.
Watts are not what the inverter is holding
At a power factor of 0.90 this load presents 15 VA to the inverter. An inverter is sold in watts and limited in volt-amps, so a machine that looks comfortable on the watt figure can be at its ceiling on the VA one. The engine checks both.
The power supply — not the computer — is what needs the waveform
The requirement here is inherited rather than device-specific, and the reasoning IS the claim, so the page states it: an 80 PLUS-certified PC power supply has to reach a power factor of 0.9 or better, which in practice means active power-factor correction. CyberPower’s own compatibility note warns that a simulated-sine output produces a momentary zero-output gap at each phase change, and that an active-PFC supply fed from one can shut down hard or fail outright.
That is a manufacturer warning about a class of power supply, not a measurement of any one computer, which is why this field’s confidence is capped below the specs around it. If your machine’s supply is not 80 PLUS certified the chain above does not reach it — check the supply, not the computer.
Every row is a live calculation against that machine's continuous output, surge ceiling and
inverter waveform. Of 26 machines, 16 run it, 10 are a tight fit and 0 are out of reach. The percentage is
this load as a share of that machine's continuous output; anything past 82% drops out of the green. Rows are ordered by verdict, then by
price — cheapest first inside each band.
EcoFlow RIVER 3 PlusEcoFlow · US 120 V600 W continuous · 1,200 W surge ceiling2.2%
13 Wh per hour — averaged over this load’s duty cycleNo runtime in hours: EcoFlow publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide.The inrush measured for this load is a millisecond-scale capacitive spike, which is not the quantity a surge rating describes and is not held against this verdict. $259 · checked 2026-08-01 Show the working →
11 h — on a full charge, with the station’s own 9.0 W idle draw in the denominatorBLUETTI publishes no surge rating for this model. The start-up check runs against its continuous output as a conservative floor, which is ours, not a manufacturer specification. $299 · checked 2026-08-01 Show the working →
13 Wh per hour — averaged over this load’s duty cycleNo runtime in hours: Jackery publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide.The inrush measured for this load is a millisecond-scale capacitive spike, which is not the quantity a surge rating describes and is not held against this verdict. $299.99 · checked 2026-08-01 Show the working →
BLUETTI Elite 100 V2BLUETTI · US 120 V1,800 W continuous · 3,600 W surge ceiling0.7%
36 h — on a full charge, with the station’s own 10 W idle draw in the denominatorThe inrush measured for this load is a millisecond-scale capacitive spike, which is not the quantity a surge rating describes and is not held against this verdict. $499 · checked 2026-08-01 Show the working →
EcoFlow DELTA 3 PlusEcoFlow · US 120 V1,800 W continuous · 3,600 W surge ceiling0.7%
13 Wh per hour — averaged over this load’s duty cycleNo runtime in hours: EcoFlow publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide.The inrush measured for this load is a millisecond-scale capacitive spike, which is not the quantity a surge rating describes and is not held against this verdict. $689 · checked 2026-08-01 Show the working →
EcoFlow DELTA 2 MaxEcoFlow · US 120 V2,400 W continuous · 4,800 W surge ceiling0.5%
13 Wh per hour — averaged over this load’s duty cycleNo runtime in hours: EcoFlow publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide.The inrush measured for this load is a millisecond-scale capacitive spike, which is not the quantity a surge rating describes and is not held against this verdict. $949 · checked 2026-08-01 Show the working →
13 Wh per hour — averaged over this load’s duty cycleNo runtime in hours: Jackery publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide.The inrush measured for this load is a millisecond-scale capacitive spike, which is not the quantity a surge rating describes and is not held against this verdict. $999 · checked 2026-08-01 Show the working →
68 h — on a full charge, with the station’s own 10 W idle draw in the denominatorBLUETTI publishes no surge rating for this model. The start-up check runs against its continuous output as a conservative floor, which is ours, not a manufacturer specification. $1,099 · checked 2026-08-01 Show the working →
EcoFlow DELTA Pro 3EcoFlow · US 120 V4,000 W continuous · 8,000 W surge ceiling0.3%
13 Wh per hour — averaged over this load’s duty cycleNo runtime in hours: EcoFlow publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide.The inrush measured for this load is a millisecond-scale capacitive spike, which is not the quantity a surge rating describes and is not held against this verdict. $2,399 · checked 2026-08-01 Show the working →
11 h — on a full charge, with the station’s own 9.0 W idle draw in the denominatorBLUETTI publishes no surge rating for this model. The start-up check runs against its continuous output as a conservative floor, which is ours, not a manufacturer specification. €279 · checked 2026-08-01 Show the working →
13 Wh per hour — averaged over this load’s duty cycleNo runtime in hours: Jackery publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide.The inrush measured for this load is a millisecond-scale capacitive spike, which is not the quantity a surge rating describes and is not held against this verdict. €279 · checked 2026-08-01 Show the working →
EcoFlow RIVER 3 PlusEcoFlow · EU 230 V600 W continuous · 1,200 W surge ceiling2.2%
13 Wh per hour — averaged over this load’s duty cycleNo runtime in hours: EcoFlow publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide.The inrush measured for this load is a millisecond-scale capacitive spike, which is not the quantity a surge rating describes and is not held against this verdict. €299 · checked 2026-08-01 Show the working →
EcoFlow DELTA 3 PlusEcoFlow · EU 230 V1,800 W continuous · 3,600 W surge ceiling0.7%
13 Wh per hour — averaged over this load’s duty cycleNo runtime in hours: EcoFlow publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide.The inrush measured for this load is a millisecond-scale capacitive spike, which is not the quantity a surge rating describes and is not held against this verdict. €849 · checked 2026-08-01 Show the working →
13 Wh per hour — averaged over this load’s duty cycleNo runtime in hours: Jackery publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide.The inrush measured for this load is a millisecond-scale capacitive spike, which is not the quantity a surge rating describes and is not held against this verdict. €999 · checked 2026-08-01 Show the working →
EcoFlow DELTA 2 MaxEcoFlow · EU 230 V2,400 W continuous · 4,800 W surge ceiling0.5%
13 Wh per hour — averaged over this load’s duty cycleNo runtime in hours: EcoFlow publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide.The inrush measured for this load is a millisecond-scale capacitive spike, which is not the quantity a surge rating describes and is not held against this verdict. €1,199 · checked 2026-08-01 Show the working →
EcoFlow DELTA Pro 3EcoFlow · EU 230 V4,000 W continuous · 8,000 W surge ceiling0.3%
13 Wh per hour — averaged over this load’s duty cycleNo runtime in hours: EcoFlow publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide.The inrush measured for this load is a millisecond-scale capacitive spike, which is not the quantity a surge rating describes and is not held against this verdict. €3,299 · checked 2026-08-01 Show the working →
limited by inverter waveform 13 Wh per hour — averaged over this load’s duty cycleNo runtime in hours: Jackery publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide.Jackery does not publish this model’s inverter waveform, and this load needs a pure sine wave — so no green light is given, whatever the watts say. $499 · checked 2026-08-01 Show the working →
limited by inverter waveform 13 Wh per hour — averaged over this load’s duty cycleNo runtime in hours: Jackery publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide.Jackery does not publish this model’s inverter waveform, and this load needs a pure sine wave — so no green light is given, whatever the watts say. $899 · checked 2026-08-01 Show the working →
limited by inverter waveform 13 Wh per hour — averaged over this load’s duty cycleNo runtime in hours: EcoFlow publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide.EcoFlow does not publish this model’s inverter waveform, and this load needs a pure sine wave — so no green light is given, whatever the watts say. $1,279 · checked 2026-08-01 Show the working →
Anker SOLIX C300Anker SOLIX · EU 230 V300 W continuous · 600 W surge ceiling4.4%
limited by inverter waveform 13 Wh per hour — averaged over this load’s duty cycleNo runtime in hours: Anker SOLIX publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide.Anker SOLIX does not publish this model’s inverter waveform, and this load needs a pure sine wave — so no green light is given, whatever the watts say. €269.99 · checked 2026-08-01 Show the working →
limited by inverter waveform 13 Wh per hour — averaged over this load’s duty cycleNo runtime in hours: EcoFlow publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide.EcoFlow does not publish this model’s inverter waveform, and this load needs a pure sine wave — so no green light is given, whatever the watts say. €599 · checked 2026-08-01 Show the working →
limited by inverter waveform 36 h — on a full charge, with the station’s own 10 W idle draw in the denominatorBLUETTI does not publish this model’s inverter waveform, and this load needs a pure sine wave — so no green light is given, whatever the watts say. €699 · checked 2026-08-01 Show the working →
limited by inverter waveform 13 Wh per hour — averaged over this load’s duty cycleNo runtime in hours: Jackery publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide.Jackery does not publish this model’s inverter waveform, and this load needs a pure sine wave — so no green light is given, whatever the watts say. €799 · checked 2026-08-01 Show the working →
limited by inverter waveform 13 Wh per hour — averaged over this load’s duty cycleNo runtime in hours: Anker SOLIX publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide.Anker SOLIX does not publish this model’s inverter waveform, and this load needs a pure sine wave — so no green light is given, whatever the watts say. €999 · checked 2026-08-01 Show the working →
limited by inverter waveform 68 h — on a full charge, with the station’s own 13 W idle draw in the denominatorBLUETTI does not publish this model’s inverter waveform, and this load needs a pure sine wave — so no green light is given, whatever the watts say. €1,299 · checked 2026-08-01 Show the working →
limited by inverter waveform 13 Wh per hour — averaged over this load’s duty cycleNo runtime in hours: Jackery publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide.Jackery does not publish this model’s inverter waveform, and this load needs a pure sine wave — so no green light is given, whatever the watts say. €1,799 · checked 2026-08-01 Show the working →
The cheapest US 120 V machine in the list that runs a desktop PC outright, and it holds it at 13 Wh per hour.
$259 · price checked 2026-08-01
The buy link is in the bar at the bottom of the screen — one action per page, and it
goes to the merchant we last checked the price at.
Everything else we hold on this load
Each figure carries the tier it came from and the date it was checked. Sizing guidance is
kept apart from measured draw on purpose: one says what the machine pulls, the other says
what a manufacturer or a standard thinks you should buy for it.
Measured and published draw
Standby draw0.6 W Official spec · verified 2026-08-01 · high confidence
Power factor0.90 Official spec · verified 2026-08-01 · high confidence
The inverter is loaded to 15 VA — 13.2 W ÷ 0.90 — which is the figure its ceiling is actually measured against.
Pure sine wave requiredYes Official spec · verified 2026-08-01 · medium confidence
Energy per year49.6 kWh Official spec · verified 2026-08-01 · high confidence
Published on the US FTC EnergyGuide label.
Sizing guidance — not a draw figure
Minimum continuous output371.5 W Official spec · verified 2026-08-01 · medium confidence
A sizing figure, not a draw: it is what this class needs a machine to be RATED at, headroom included.
Minimum surge capability4,600 W Official spec · verified 2026-08-01 · low confidence
The start-up headroom this class needs an inverter to have. Where it comes from a manufacturer’s inverter recommendation rather than a measured inrush, it is deliberately generous.
13.2 W while it is running, and 2.3–37 W across the models in this class, with 4,600 W demanded at the instant it starts. Those are different questions and most pages answer only the first. The running figure decides whether a machine can hold it; the start-up figure decides whether it can get it going at all, and it is usually the one that fails. The start-up figure here is the manufacturer’s own..
What size power station do I need for a desktop PC?
For a desktop PC, the EcoFlow RIVER 3 Plus (US 120 V) is the cheapest machine in our library that runs it, at 600 W continuous · 1,200 W surge ceiling and $259 against a running draw of 13.2 W. That is a verdict computed from this load’s running watts, its start-up demand and the inverter waveform — not a rule of thumb about doubling the wattage. 16 of 26 machines clear it, 10 are a tight fit, and the tight ones are tight for reasons the list states individually.
How long will a power station run a desktop PC?
It depends entirely on the machine, which is the part most pages skip. Against 13.2 W of running draw, our figures put the BLUETTI Elite 30 V2 at about 11 h, and the BLUETTI Elite 100 V2 at about 36 h. Those hours come from usable-capacity figures derived from the manufacturers’ own published depth of discharge and inverter efficiency, with each machine’s idle draw in the denominator — not from dividing a nameplate watt-hour number by a label wattage. Most machines in the list carry no hours at all: their brands publish nothing that makes a usable-capacity figure defensible, so those rows give an energy rate instead of a number we would have had to invent.
Does the start-up spike from a desktop PC matter?
Less than the number suggests, and this site says so rather than quietly using it. The start-up figure is published by the manufacturer for this device, so it describes the actual hardware rather than a category. The measured spike is 4,600 W, but it lasts a few line cycles — a capacitor charging, not a motor starting — while a station's surge rating describes a second-scale event. They are not the same quantity, so the spike is reported here and deliberately not held against any verdict above. A site that compared the two would fail this load against machines that run it perfectly well.
Does a desktop PC need a pure sine wave inverter?
Yes on our sources, and unusually this is a manufacturer statement rather than an internet one. The requirement here is inherited rather than device-specific, and the reasoning IS the claim, so the page states it: an 80 PLUS-certified PC power supply has to reach a power factor of 0.9 or better, which in practice means active power-factor correction. CyberPower’s own compatibility note warns that a simulated-sine output produces a momentary zero-output gap at each phase change, and that an active-PFC supply fed from one can shut down hard or fail outright. That is a manufacturer warning about a class of power supply, not a measurement of any one computer, which is why this field’s confidence is capped below the specs around it. If your machine’s supply is not 80 PLUS certified the chain above does not reach it — check the supply, not the computer. Where a station's brand does not publish its inverter waveform, this site refuses the green light rather than assuming one — which is why 10 of the 26 machines above sit at amber.
16 of 26 machines run itEcoFlow RIVER 3 Plus · from $259