How Long Will It Run

How long will an EcoFlow RIVER Pro run a Wi-Fi router?

A little over a day — 24 h 47 min typically, from 23 h 20 min in the worst case to 26 h 14 min at best. That assumes a Wi-Fi router pulling 10 W continuously, plus the station's 10 W AC mains socket overhead — 20 W in total out of 496 usable watt-hours.

Note how much of that draw is the station rather than the appliance: 50% 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 × Wi-Fi router, UK 230 V20 W23 h 20 min24 h 47 min26 h 14 min
2 × Wi-Fi router, UK 230 V30 W15 h 33 min16 h 31 min17 h 30 min
1 × Wi-Fi router, US 120 V20 W23 h 20 min24 h 47 min26 h 14 min
  • 3.1 nights of eight hours, or 1.03 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 661 Wh of rated capacity — which this station has.
  • Start-up: the Wi-Fi router asks for 10 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 power cut the router often matters most: it carries the internet and, on a digital landline, the home phone.

Without a power station: a 20,000 mAh power bank runs a Wi-Fi router for about 5 h. See the power bank numbers.

Mini UPS for the router. Home phones now run through the broadband router, so when it goes off in a power cut the landline goes with it. A small battery box keeps the router, and the phone plugged into it, working.

Look for: DC outputs that match the voltage printed on your router's power adapter (usually 12 V), enough of them for the fibre box too if you have one, and a capacity in watt-hours.

Power bank, 20,000 mAh. Keeps a phone going for days if you use it sparingly.

Look for: Capacity in watt-hours as well as mAh (about 74 Wh for 20,000 mAh), USB-C in and out, and keep it charged.

Simple mobile phone. A basic mobile with a week of standby is the backup when the home phone dies with the router. Easy to use, and it stays charged far longer than a smartphone.

Look for: Large buttons, a loud ringer, a long stated standby time, and an emergency button if it will be used by someone who lives alone.

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More: Will your phone and internet work 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 old22 h 48 min-8%
The pack is five years old19 h 50 min-20%
It is −10 °C outside19 h 50 min-20%
You run it flat, no reserve27 h 32 min+11%
You keep 20% back22 h 2 min-11%

So small that inverter idle draw dominates — run it from a 12 V or USB output if your router allows it.

If you need it to run longer

These run a Wi-Fi router for at least twice as long as the EcoFlow RIVER Pro does, cheapest first.

StationWhTypicalIndicative price
Jackery Explorer 2000 v22,0422 days 17 h£849 / $999
OUKITEL P2001 Ultimate2,0002 days 15 h£999 / $1,099
OUKITEL BP20002,0482 days 17 h£1,099 / $1,199
EcoFlow DELTA 2 Max2,0482 days 14 h£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 EB70S71626 h 1 min9.7 kg£449 / $429
UGREEN PowerRoam 60068026 h 1 min8.4 kg£449 / $499
Goal Zero Yeti 70067725 h 54 min9.2 kg— / $700
Jackery Explorer 600 Plus63225 h 31 min7.3 kg—