How Long Will It Run

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

It will not. An electric kettle draws 3,000 W and the EcoFlow RIVER Pro's inverter is rated at 600 W, so the station will refuse the load rather than run it slowly. Capacity is irrelevant here — you need a bigger inverter, not a bigger battery.

A UK 3 kW kettle needs a big inverter but only runs for three minutes — energy is cheap here, power is not.

The numbers

EcoFlow RIVER Pro · 720 Wh · new pack at 20 °C, 10% reserve
SetupAverage drawCautiousTypicalBest case
1 × electric kettle, UK 230 V3,010 W———
2 × electric kettle, UK 230 V6,010 W———
1 × electric kettle, US 120 V1,510 W———
  • 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 99,401 Wh of rated capacity — 138.1× this station.
  • Start-up: the electric kettle asks for 3,000 W at switch-on against this station's 1,200 W peak — not enough.

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 old—-6%
The pack is five years old—-19%
It is −10 °C outside—-19%
You run it flat, no reserve—+12%
You keep 20% back—-6%

If you need it to run longer

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

StationWhTypicalIndicative price
Bluetti Apex 3002,76440 min£1,799 / $1,699
Anker SOLIX F30003,07244 min£1,899 / $1,999
Jackery Explorer 2000 Plus2,04229 min£1,999 / $1,999
Bluetti AC300 + B3003,07244 min£2,499 / $2,699

The cheapest step up: Bluetti Apex 300

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

Nothing smaller than the EcoFlow RIVER Pro runs an electric kettle for a useful length of time.