How long will an EcoFlow RIVER Pro run a desk fan?
About 14 hours — 14 h 10 min typically, from 13 h 20 min in the worst case to 15 h at best. That assumes a desk fan pulling 25 W continuously, plus the station's 10 W AC mains socket overhead — 35 W in total out of 496 usable watt-hours.
Cheap to run all night; a DC or USB fan is cheaper still.
The numbers
| Setup | Average draw | Cautious | Typical | Best case |
|---|---|---|---|---|
| 1 × desk fan, UK 230 V | 35 W | 13 h 20 min | 14 h 10 min | 15 h |
| 2 × desk fan, UK 230 V | 60 W | 7 h 47 min | 8 h 16 min | 8 h 45 min |
| 1 × desk fan, US 120 V | 35 W | 13 h 20 min | 14 h 10 min | 15 h |
- 1.8 nights of eight hours, or 0.59 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 1,156 Wh of rated capacity — 1.6× this station.
- Start-up: the desk fan asks for 50 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
In a summer outage, cooling is what a battery struggles with most. A rechargeable fan by the bed runs for hours on its own battery and costs far less than running an air conditioner from a station.
Rechargeable fan. After a hurricane the power can stay off for days in heat and humidity. A battery fan by the bed is what makes the nights bearable, and it runs for hours from a power bank.
Look for: USB-C charging, a stated runtime on low, and a clip or stand so it can sit close to you.
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More: Hurricane power outage checklist, and the power cut essentials list (US edition).
What changes the answer
| If instead… | Typical runtime | Change |
|---|---|---|
| The pack is two years old | 13 h 2 min | -8% |
| The pack is five years old | 11 h 20 min | -20% |
| It is −10 °C outside | 11 h 20 min | -20% |
| You run it flat, no reserve | 15 h 44 min | +11% |
| You keep 20% back | 12 h 35 min | -11% |
If you need it to run longer
These run a desk fan for at least twice as long as the EcoFlow RIVER Pro does, cheapest first.
| Station | Wh | Typical | Indicative price |
|---|---|---|---|
| Jackery Explorer 2000 v2 | 2,042 | 39 h 3 min | £849 / $999 |
| OUKITEL P2001 Ultimate | 2,000 | 38 h 15 min | £999 / $1,099 |
| Bluetti AC240 | 1,536 | 28 h 37 min | £1,099 / $999 |
| OUKITEL BP2000 | 2,048 | 39 h 10 min | £1,099 / $1,199 |
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
| Station | Wh | Typical | Weight | Indicative price |
|---|---|---|---|---|
| Bluetti EB70S | 716 | 14 h 52 min | 9.7 kg | £449 / $429 |
| UGREEN PowerRoam 600 | 680 | 14 h 32 min | 8.4 kg | £449 / $499 |
| Goal Zero Yeti 700 | 677 | 14 h 28 min | 9.2 kg | — / $700 |
| Jackery Explorer 600 Plus | 632 | 13 h 55 min | 7.3 kg | — |
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