What size power station for a 12V fridge?

Refrigeration Also called: 12v fridge, portable fridge, camping fridge

Two numbers decide whether a power station runs a 12V portable fridge/freezer, and readers arrive using them interchangeably. Watts are the ceiling on what the inverter can hold at any instant — this load needs 90 W of them while it runs, and 180 W for the moment it starts. Watt-hours are how much energy the battery holds, and this load gets through about 222 Wh in a day. A machine can have plenty of one and not enough of the other.

Of the 26 station records we publish — every model we hold a page for, with its US and EU versions counted separately — 26 run it, 0 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 power 90 W 78–125 W Official spec · verified 2026-08-01 · high confidence

Start-up surge 180 W engine checks 180 W Derived from official coefficients · verified 2026-08-01 · medium confidence

Duty cycle Not found in the sources we checked no figure to date

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.

This record publishes both an absolute inrush and a multiple of running power. They do not agree exactly, so the engine checks against the more demanding of the two — 180 W — rather than picking the flattering one.

Two ways to read a duty cycle

A duty cycle can be read two ways and they are not the same number. One is the constant a test procedure assumes so that a label figure is reproducible; the other is what the machine does in a real room, which depends on the weather, the door and the thermostat. The named readings below each carry their own source and date, so you can see which one a figure came from rather than being handed a blend of the two.

32 °C ambient, box held at 4 °C (maker's rating point) 13% Derived from official coefficients · verified 2026-08-17 · medium confidence
32 °C ambient, dual-zone with freezer compartment at −15 °C (proportion carried across from the 75DZ) 32% Derived from official coefficients · verified 2026-08-17 · medium confidence
Hot ambient, compressor assumed continuous (modelled ceiling) 100% no tier recorded · verified 2026-08-18 · low confidence

Official spec + Derived from official coefficientsverified 2026-08-18appliance record

What actually decides it

A variable-speed motor: it ramps instead of slamming

This compressor is fed by its own electronics, which start it gently and then modulate its speed to the work in front of it. The start-up peak is small or absent, and the running draw is a band rather than a point — low most of the time, climbing only under load. The binding constraint is usually the top of that band, not the start.

What kind of motor is inside

The motor is brushless and driven by its own inverter board, which is why the start-up demand is modest: the electronics ramp the motor rather than connecting it straight to the line.

Which power stations run it

Every row is a live calculation against that machine's continuous output, surge ceiling and inverter waveform. Of the 26 station records we publish — US and EU versions counted separately — 26 run it, 0 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.

BLUETTI Elite 30 V2 BLUETTI · US 120 V 600 W continuous Runs it15%

222 Wh per day — from this load’s own published annual energy figure (Official spec · verified 2026-08-01), not running watts times a duty cycle No runtime in hours: we do not hold a duty cycle for this load, and no figure is estimated to fill the gap. We have found no published surge rating for the US 120 V build. The start-up check runs against its continuous output as a conservative floor, which is ours, not a manufacturer specification. $239 · checked 2026-08-17 Show the working →

EcoFlow RIVER 3 Plus EcoFlow · US 120 V 600 W continuous · 1,200 W surge ceiling Runs it15%

222 Wh per day — from this load’s own published annual energy figure (Official spec · verified 2026-08-01), not running watts times a duty cycle No runtime in hours: 4 of EcoFlow’s own published documents, read 2026-08-08, carry no depth of discharge or inverter efficiency for the US 120 V build, so there is no defensible usable-capacity figure to divide. $279 · checked 2026-08-17 Show the working →

Jackery Explorer 300 Plus Jackery · US 120 V 300 W continuous · 600 W surge ceiling Runs it30%

BLUETTI Elite 100 V2 BLUETTI · US 120 V 1,800 W continuous · 3,600 W surge ceiling Runs it5.0%

Jackery Explorer 1000 v2 Jackery · US 120 V 1,500 W continuous · 3,000 W surge ceiling Runs it6.0%

EcoFlow DELTA 3 Plus EcoFlow · US 120 V 1,800 W continuous · 3,600 W surge ceiling Runs it5.0%

BLUETTI Elite 200 V2 BLUETTI · US 120 V 2,600 W continuous Runs it3.5%

Jackery Explorer 2000 Plus Jackery · US 120 V 3,000 W continuous · 6,000 W surge ceiling Runs it3.0%

Jackery Explorer 1000 Plus Jackery · US 120 V 2,000 W continuous · 4,000 W surge ceiling Runs it4.5%

EcoFlow DELTA 2 Max EcoFlow · US 120 V 2,400 W continuous · 4,800 W surge ceiling Runs it3.8%

222 Wh per day — from this load’s own published annual energy figure (Official spec · verified 2026-08-01), not running watts times a duty cycle No runtime in hours: 5 of EcoFlow’s own published documents, read 2026-08-08, carry no depth of discharge or inverter efficiency for the US 120 V build, so there is no defensible usable-capacity figure to divide. $1,049 · checked 2026-08-17 Show the working →

EcoFlow STREAM Ultra EcoFlow · US 120 V 800 W continuous Runs it11%

222 Wh per day — from this load’s own published annual energy figure (Official spec · verified 2026-08-01), not running watts times a duty cycle No runtime in hours: 3 of EcoFlow’s own published documents, read 2026-08-08, carry no depth of discharge or inverter efficiency for the US 120 V build, so there is no defensible usable-capacity figure to divide. We have found no published surge rating for the US 120 V build. The start-up check runs against its continuous output as a conservative floor, which is ours, not a manufacturer specification. $1,279 · checked 2026-08-17 Show the working →

EcoFlow DELTA Pro 3 EcoFlow · US 120 V 4,000 W continuous · 8,000 W surge ceiling Runs it2.3%

BLUETTI Elite 30 V2 BLUETTI · EU 230 V 600 W continuous Runs it15%

222 Wh per day — from this load’s own published annual energy figure (Official spec · verified 2026-08-01), not running watts times a duty cycle No runtime in hours: we do not hold a duty cycle for this load, and no figure is estimated to fill the gap. We have found no published surge rating for the EU 230 V build. The start-up check runs against its continuous output as a conservative floor, which is ours, not a manufacturer specification. €219 · checked 2026-08-17 Show the working →

Anker SOLIX C300 Anker SOLIX · EU 230 V 300 W continuous · 600 W surge ceiling Runs it30%

Jackery Explorer 300 Plus Jackery · EU 230 V 300 W continuous · 600 W surge ceiling Runs it30%

EcoFlow RIVER 3 Plus EcoFlow · EU 230 V 600 W continuous · 1,200 W surge ceiling Runs it15%

Jackery Explorer 1000 v2 Jackery · EU 230 V 1,500 W continuous · 3,000 W surge ceiling Runs it6.0%

BLUETTI Elite 100 V2 BLUETTI · EU 230 V 1,800 W continuous Runs it5.0%

222 Wh per day — from this load’s own published annual energy figure (Official spec · verified 2026-08-01), not running watts times a duty cycle No runtime in hours: we do not hold a duty cycle for this load, and no figure is estimated to fill the gap. We have found no published surge rating for the EU 230 V build. The start-up check runs against its continuous output as a conservative floor, which is ours, not a manufacturer specification. €579 · checked 2026-08-17 Show the working →

EcoFlow STREAM Ultra EcoFlow · EU 1,200 W continuous Runs it7.5%

222 Wh per day — from this load’s own published annual energy figure (Official spec · verified 2026-08-01), not running watts times a duty cycle No runtime in hours: we have found no depth of discharge or inverter efficiency for the EU build, so there is no defensible usable-capacity figure to divide. We have found no published surge rating for the EU build. The start-up check runs against its continuous output as a conservative floor, which is ours, not a manufacturer specification. €599 · checked 2026-08-17 Show the working →

EcoFlow DELTA 3 Plus EcoFlow · EU 230 V 1,800 W continuous · 3,600 W surge ceiling Runs it5.0%

EcoFlow DELTA 2 Max EcoFlow · EU 230 V 2,400 W continuous · 4,800 W surge ceiling Runs it3.8%

Anker SOLIX Solarbank 3 E2700 Pro Anker SOLIX · EU 1,200 W continuous Runs it7.5%

Jackery Explorer 1000 Plus Jackery · EU 230 V 2,000 W continuous · 4,000 W surge ceiling Runs it4.5%

BLUETTI Elite 200 V2 BLUETTI · EU 230 V 2,600 W continuous Runs it3.5%

222 Wh per day — from this load’s own published annual energy figure (Official spec · verified 2026-08-01), not running watts times a duty cycle No runtime in hours: we do not hold a duty cycle for this load, and no figure is estimated to fill the gap. We have found no published surge rating for the EU 230 V build. The start-up check runs against its continuous output as a conservative floor, which is ours, not a manufacturer specification. €1,149 · checked 2026-08-17 Show the working →

Jackery Explorer 2000 Plus Jackery · EU 230 V 3,000 W continuous · 6,000 W surge ceiling Runs it3.0%

EcoFlow DELTA Pro 3 EcoFlow · EU 230 V 4,000 W continuous · 8,000 W surge ceiling Runs it2.3%

Which one to buy, ranked

Our pick for this load

BLUETTI Elite 30 V2 · US 120 V

The cheapest US 120 V machine in the list that runs a 12V portable fridge/freezer outright, and it holds it at 222 Wh per day.

$239 · price checked 2026-08-17

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.

What changes the numbers

At 32 °C ambient ×1 Applied to the draw itself, which means the verdict can move with the weather. Official spec

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

Energy per year 81 kWh Official spec · verified 2026-08-01 · high confidence

Published on the manufacturer's own declaration under a published test standard.

Energy per day 222 Wh Official spec · verified 2026-08-01 · medium confidence

Published on the manufacturer's own declaration under a published test standard.

Sizing guidance — not a draw figure

Minimum continuous output 125 W Official spec · verified 2026-08-01 · high confidence

A sizing figure, not a draw: it is what this class needs a machine to be RATED at, headroom included.

Minimum surge capability 180 W Official spec · verified 2026-08-01 · medium 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.

Usable energy for a full day 304 Wh Official spec · verified 2026-08-01 · medium confidence

Where to go next

From the Knowledge channel

A 12V portable fridge/freezer has a dedicated guide: the same records this page computes from, worked through in prose with room for the reasoning a table can only summarise — Why does my power station shut off when the pump or fridge starts?

Questions people ask about this load

How many watts does a 12V portable fridge/freezer use?

90 W while it is running, and 78–125 W across the models in this class, with 180 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 12V portable fridge/freezer?

For a 12V portable fridge/freezer, the BLUETTI Elite 30 V2 (US 120 V) is the cheapest machine in our library that runs it, at 600 W continuous and $239 against a running draw of 90 W and a start-up demand of 180 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. 26 of 26 machines clear it.

How long will a power station run a 12V portable fridge/freezer?

No machine in our library can answer that honestly yet, and none of the 26 rows above pretends otherwise. A runtime needs a usable-capacity figure; for the machines that reach a 12V portable fridge/freezer the brands publish a nameplate watt-hour rating and nothing about depth of discharge or inverter efficiency. Dividing that nameplate by this load would give a confident-looking figure that is typically 20–35% too high. Every row gives the energy rate instead — watt-hours per hour — which needs no battery figure at all.

Why does a 12V portable fridge/freezer need so much more power to start?

The start-up figure is published by the manufacturer for this device, so it describes the actual hardware rather than a category. The engine works the check against 180 W, which is what a station's surge ceiling has to cover for the moment the machine starts. A station whose continuous rating is comfortably above the running figure can still refuse the start, and that is the single most common way a purchase goes wrong for this class.

Does a 12V portable fridge/freezer draw that continuously?

No, and the difference is most of the energy question. This record holds more than one duty-cycle reading, each with its own source: 32 °C ambient, box held at 4 °C (maker's rating point) at 13%, 32 °C ambient, dual-zone with freezer compartment at −15 °C (proportion carried across from the 75DZ) at 32%, Hot ambient, compressor assumed continuous (modelled ceiling) at 100%. The one a page picks silently is the one that decides whether your battery lasts the night, so this site names them and lets you choose in the calculator rather than blending them into a single average.