How long will an EcoFlow RIVER Pro run an aquarium, 100 litre?
About 15 hours — 14 h 35 min typically, from 13 h 43 min in the worst case to 15 h 26 min at best. That assumes an aquarium, 100 litre pulling 40 W for 60% of the time (average 24 W), plus the station's 10 W AC mains socket overhead — 34 W in total out of 496 usable watt-hours.
The heater is most of it; the air pump and filter are a few watts each and are what actually keeps fish alive.
The numbers
| Setup | Average draw | Cautious | Typical | Best case |
|---|---|---|---|---|
| 1 × aquarium, 100 litre, UK 230 V | 34 W | 13 h 43 min | 14 h 35 min | 15 h 26 min |
| 2 × aquarium, 100 litre, UK 230 V | 58 W | 8 h 2 min | 8 h 33 min | 9 h 3 min |
| 1 × aquarium, 100 litre, US 120 V | 34 W | 13 h 43 min | 14 h 35 min | 15 h 26 min |
- 1.8 nights of eight hours, or 0.61 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 1,123 Wh of rated capacity — 1.6× this station.
- Start-up: the aquarium, 100 litre asks for 80 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.
What changes the answer
| If instead… | Typical runtime | Change |
|---|---|---|
| The pack is two years old | 13 h 25 min | -8% |
| The pack is five years old | 11 h 40 min | -20% |
| It is −10 °C outside | 11 h 40 min | -20% |
| You run it flat, no reserve | 16 h 12 min | +11% |
| You keep 20% back | 12 h 58 min | -11% |
If you need it to run longer
These run an aquarium, 100 litre 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 | 40 h 7 min | £849 / $999 |
| OUKITEL P2001 Ultimate | 2,000 | 39 h 17 min | £999 / $1,099 |
| Bluetti AC240 | 1,536 | 29 h 23 min | £1,099 / $999 |
| OUKITEL BP2000 | 2,048 | 40 h 14 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 | 15 h 18 min | 9.7 kg | £449 / $429 |
| UGREEN PowerRoam 600 | 680 | 14 h 59 min | 8.4 kg | £449 / $499 |
| Goal Zero Yeti 700 | 677 | 14 h 55 min | 9.2 kg | — / $700 |
| Jackery Explorer 600 Plus | 632 | 14 h 21 min | 7.3 kg | — |
Did this match what you measured?
Nothing is sent anywhere unless analytics is switched on, and no text is collected.