How Long Will It Run

How long will an EcoFlow RIVER Pro run a slow cooker?

About 3.7 hours — 3 h 40 min typically, from 3 h 28 min in the worst case to 3 h 53 min at best. That assumes a slow cooker pulling 250 W for 50% of the time (average 125 W), plus the station's 10 W AC mains socket overhead — 135 W in total out of 496 usable watt-hours.

Low power for a long time — an unusually good match for a mid-sized station.

The numbers

EcoFlow RIVER Pro · 720 Wh · new pack at 20 °C, 10% reserve
SetupAverage drawCautiousTypicalBest case
1 × slow cooker, UK 230 V135 W3 h 28 min3 h 40 min3 h 53 min
2 × slow cooker, UK 230 V260 W1 h 47 min1 h 55 min2 h 1 min
1 × slow cooker, US 120 V135 W3 h 28 min3 h 40 min3 h 53 min
  • 0.5 nights of eight hours, or 0.15 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 4,458 Wh of rated capacity — 6.2× this station.
  • Start-up: the slow cooker asks for 250 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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What changes the answer

If instead…Typical runtimeChange
The pack is two years old3 h 23 min-8%
The pack is five years old2 h 56 min-20%
It is −10 °C outside2 h 56 min-20%
You run it flat, no reserve4 h 5 min+11%
You keep 20% back3 h 16 min-11%

If you need it to run longer

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

StationWhTypicalIndicative price
Jackery Explorer 2000 v22,04210 h 45 min£849 / $999
Bluetti AC180P1,4407 h 38 min£899 / $649
OUKITEL P2001 Ultimate2,00010 h 32 min£999 / $1,099
Bluetti AC2401,5368 h 2 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 EB70S7163 h 51 min9.7 kg£449 / $429
UGREEN PowerRoam 6006803 h 41 min8.4 kg£449 / $499
Goal Zero Yeti 7006773 h 40 min9.2 kg— / $700
Jackery Explorer 600 Plus6323 h 27 min7.3 kg—