How Long Will It Run

How long will an EcoFlow RIVER Pro run an electric blanket?

About 16 hours — 15 h 59 min typically, from 15 h 3 min in the worst case to 16 h 56 min at best. That assumes an electric blanket pulling 60 W for 35% of the time (average 21 W), plus the station's 10 W AC mains socket overhead — 31 W in total out of 496 usable watt-hours.

Note how much of that draw is the station rather than the appliance: 32% of the energy goes on keeping the inverter awake. On a load this small, the idle draw matters more than the capacity does.

The numbers

EcoFlow RIVER Pro · 720 Wh · new pack at 20 °C, 10% reserve
SetupAverage drawCautiousTypicalBest case
1 × electric blanket, UK 230 V31 W15 h 3 min15 h 59 min16 h 56 min
2 × electric blanket, UK 230 V52 W8 h 58 min9 h 32 min10 h 5 min
1 × electric blanket, US 120 V31 W15 h 3 min15 h 59 min16 h 56 min
  • 2 nights of eight hours, or 0.67 days of continuous running.
  • Usable energy: 496 Wh of the 720 Wh on the box, after chemistry, inverter losses and the reserve.
  • To keep it going for a full 24 hours you would need about 1,024 Wh of rated capacity — 1.4× this station.
  • Start-up: the electric blanket asks for 60 W at switch-on against this station's 1,200 W peak — comfortable.

Buy the EcoFlow RIVER Pro

Where to buy

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If this is for a power cut

Heating is what a battery does worst. In a power cut, warming people rather than rooms goes much further, and none of this needs a socket.

Without a power station: a 20,000 mAh power bank runs a USB heated throw for about 7 h 24 min. See the power bank numbers.

Hot water bottle and a vacuum flask. Boil water while you still can, keep it hot in a flask, and refill the bottle through the night.

Look for: A bottle made to BS 1970 in the UK, and a flask of a litre or more.

Hand warmers. Air-activated packs give hours of heat with no power at all, and a pocketful helps children and older relatives.

Look for: Long-duration packs, and the expiry date on bulk boxes.

Battery carbon monoxide alarm. Anything burning fuel indoors, a boiler relit after an outage included, can produce carbon monoxide you cannot see or smell.

Look for: A sealed long-life battery and EN 50291 certification in the UK (UL 2034 in the US).

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More: How to keep warm in a power cut, and the power cut essentials list (US edition).

What changes the answer

If instead…Typical runtimeChange
The pack is two years old14 h 43 min-8%
The pack is five years old12 h 47 min-20%
It is −10 °C outside12 h 47 min-20%
You run it flat, no reserve17 h 46 min+11%
You keep 20% back14 h 13 min-11%

Thermostatic, so it is on for about a third of the night — one of the few heating loads a battery handles gracefully.

If you need it to run longer

These run an electric blanket for at least twice as long as the EcoFlow RIVER Pro does, cheapest first.

StationWhTypicalIndicative price
Jackery Explorer 2000 v22,04243 h 39 min£849 / $999
OUKITEL P2001 Ultimate2,00042 h 45 min£999 / $1,099
OUKITEL BP20002,04843 h 47 min£1,099 / $1,199
EcoFlow DELTA 2 Max2,04842 h 32 min£1,199 / $1,399

The cheapest step up: Jackery Explorer 2000 v2

Amazon and approved-programme links are affiliate links; the site may earn a commission at no extra cost to you. Links marked “official site” are untracked. Prices and stock change constantly — check before you buy.

Smaller options that still work

StationWhTypicalWeightIndicative price
Bluetti EB70S71616 h 47 min9.7 kg£449 / $429
UGREEN PowerRoam 60068016 h 28 min8.4 kg£449 / $499
Goal Zero Yeti 70067716 h 24 min9.2 kg— / $700
Jackery Explorer 600 Plus63215 h 50 min7.3 kg—