How long will an EcoFlow RIVER 3 Max run a garden inflatable (christmas or halloween)?
About 6.3 hours — 6 h 19 min typically, from 5 h 56 min in the worst case to 6 h 41 min at best. That assumes a garden inflatable (christmas or halloween) pulling 50 W continuously, plus the station's 9 W AC mains socket overhead — 59 W in total out of 372 usable watt-hours.
The fan runs the whole time it is standing up, so the hours it is on decide the cost.
The numbers
| Setup | Average draw | Cautious | Typical | Best case |
|---|---|---|---|---|
| 1 × garden inflatable (christmas or halloween), UK 230 V | 59 W | 5 h 56 min | 6 h 19 min | 6 h 41 min |
| 2 × garden inflatable (christmas or halloween), UK 230 V | 109 W | 3 h 13 min | 3 h 25 min | 3 h 37 min |
| 1 × garden inflatable (christmas or halloween), US 120 V | 59 W | 5 h 56 min | 6 h 19 min | 6 h 41 min |
- 0.8 nights of eight hours, or 0.26 days of continuous running.
- Usable energy: 372 Wh of the 512 Wh on the box, after chemistry, inverter losses and the reserve.
- To keep it going for a full 24 hours you would need about 1,948 Wh of rated capacity — 3.8× this station.
- Start-up: the garden inflatable (christmas or halloween) asks for 50 W at switch-on against this station's 1,200 W peak — comfortable.
Buy the EcoFlow RIVER 3 Max
Where to buy
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What changes the answer
| If instead… | Typical runtime | Change |
|---|---|---|
| The pack is two years old | 5 h 48 min | -8% |
| The pack is five years old | 5 h 3 min | -20% |
| It is −10 °C outside | 5 h 22 min | -15% |
| You run it flat, no reserve | 7 h 1 min | +11% |
| You keep 20% back | 5 h 37 min | -11% |
If you need it to run longer
These run a garden inflatable (christmas or halloween) for at least twice as long as the EcoFlow RIVER 3 Max does, cheapest first.
| Station | Wh | Typical | Indicative price |
|---|---|---|---|
| Jackery Explorer 1000 v2 | 1,070 | 12 h 58 min | £419 / $549 |
| Jackery Explorer 1000 Plus | 1,264 | 15 h 4 min | £549 / $999 |
| ALLPOWERS R1500 | 1,152 | 13 h 30 min | £699 / $539 |
| Bluetti AC180 | 1,152 | 13 h 30 min | £749 / $499 |
The cheapest step up: Jackery Explorer 1000 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 |
|---|---|---|---|---|
| Goal Zero Yeti 500 | 499 | 6 h 9 min | 7.3 kg | — / $500 |
| Bluetti AC50B | 448 | 5 h 31 min | 6.5 kg | £299 / $399 |
| Bluetti AC60 | 403 | 4 h 58 min | 9.1 kg | £449 / $599 |
| Bluetti Elite 30 V2 | 288 | 3 h 50 min | 4.3 kg | £229 / $449 |
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