How Long Will It Run

How long will an EcoFlow DELTA Pro run a heated clothes airer?

About 8.2 hours — 8 h 14 min typically, from 7 h 44 min in the worst case to 8 h 43 min at best. That assumes a heated clothes airer pulling 300 W continuously, plus the station's 18 W AC mains socket overhead — 318 W in total out of 2,616 usable watt-hours.

No thermostat on most models, so it draws its full rating for as long as it is on — a cover over the load dries it faster and saves hours.

The numbers

EcoFlow DELTA Pro · 3,600 Wh · new pack at 20 °C, 10% reserve
SetupAverage drawCautiousTypicalBest case
1 × heated clothes airer, UK 230 V318 W7 h 44 min8 h 14 min8 h 43 min
2 × heated clothes airer, UK 230 V618 W3 h 59 min4 h 14 min4 h 29 min
1 × heated clothes airer, US 120 V318 W7 h 44 min8 h 14 min8 h 43 min
  • 1 nights of eight hours, or 0.34 days of continuous running.
  • Usable energy: 2,616 Wh of the 3,600 Wh on the box, after chemistry, inverter losses and the reserve.
  • To keep it going for a full 24 hours you would need about 10,502 Wh of rated capacity — 2.9× this station.
  • Start-up: the heated clothes airer asks for 300 W at switch-on against this station's 7,200 W peak — comfortable.

Buy the EcoFlow DELTA Pro

Where to buy

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What changes the answer

If instead…Typical runtimeChange
The pack is two years old7 h 34 min-8%
The pack is five years old6 h 35 min-20%
It is −10 °C outside6 h 59 min-15%
You run it flat, no reserve9 h 8 min+11%
You keep 20% back7 h 19 min-11%

If you need it to run longer

Nothing in this catalogue runs a heated clothes airer for twice as long as the EcoFlow DELTA Pro. Either it is already near the top of the range, or this appliance is beyond what portable batteries do well — see the heated clothes airer page for the full ranking.

Smaller options that still work

StationWhTypicalWeightIndicative price
Anker SOLIX F30003,0727 h 4 min41.5 kg£1,899 / $1,999
Pecron E3600LFP3,0727 h 4 min36 kg— / $999
Bluetti AC300 + B3003,0727 h 1 min63 kg£2,499 / $2,699
Goal Zero Yeti 3000X3,0326 h 38 min31.7 kg— / $3,000