How Long Will It Run

How long will an EcoFlow RIVER Pro run a heated throw?

About 9.9 hours — 9 h 55 min typically, from 9 h 20 min in the worst case to 10 h 30 min at best. That assumes a heated throw pulling 100 W for 40% of the time (average 40 W), plus the station's 10 W AC mains socket overhead — 50 W in total out of 496 usable watt-hours.

Bigger and warmer than a blanket; still cheap compared with heating the room.

The numbers

EcoFlow RIVER Pro · 720 Wh · new pack at 20 °C, 10% reserve
SetupAverage drawCautiousTypicalBest case
1 × heated throw, UK 230 V50 W9 h 20 min9 h 55 min10 h 30 min
2 × heated throw, UK 230 V90 W5 h 11 min5 h 31 min5 h 50 min
1 × heated throw, US 120 V50 W9 h 20 min9 h 55 min10 h 30 min
  • 1.2 nights of eight hours, or 0.41 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 1,651 Wh of rated capacity — 2.3× this station.
  • Start-up: the heated throw asks for 100 W at switch-on against this station's 1,200 W peak — comfortable.

Buy the EcoFlow RIVER Pro

Where to buy

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.

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).

Amazon links are affiliate searches for a type of product, not endorsements of a model; the site may earn a commission at no extra cost to you.

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 old9 h 7 min-8%
The pack is five years old7 h 56 min-20%
It is −10 °C outside7 h 56 min-20%
You run it flat, no reserve11 h 1 min+11%
You keep 20% back8 h 49 min-11%

If you need it to run longer

These run a heated throw for at least twice as long as the EcoFlow RIVER Pro does, cheapest first.

StationWhTypicalIndicative price
Jackery Explorer 2000 v22,04228 h£849 / $999
Bluetti AC180P1,44020 h 8 min£899 / $649
OUKITEL P2001 Ultimate2,00027 h 25 min£999 / $1,099
Bluetti AC2401,53620 h 40 min£1,099 / $999

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 EB70S71610 h 25 min9.7 kg£449 / $429
UGREEN PowerRoam 60068010 h 5 min8.4 kg£449 / $499
Goal Zero Yeti 70067710 h 2 min9.2 kg— / $700
Jackery Explorer 600 Plus6329 h 34 min7.3 kg—