How long will the EcoFlow Delta 2 Max run a portable ac (small)?

Q: How long will the EcoFlow Delta 2 Max run a portable ac (small)?

The EcoFlow Delta 2 Max has 2048 Wh (about 1567 Wh usable at the outlet, estimated). Running a portable ac (small) that draws 900W, it lasts about 1.7 hours on a single full charge.

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Will the EcoFlow Delta 2 Max run a portable ac (small)?

Yes — the Delta 2 Max runs a portable ac (small) comfortably

Its 2400W continuous output easily covers the 900W draw, with 3400W of surge on tap for startup.

Estimated runtime

about 1.7 hours

on a single full charge

Est. usable (AC): 1,567 Wh

Appliance draw: 900 W

Continuous output: 2400 W

How we calculated this

We start from the EcoFlow Delta 2 Max's 1,567 Wh of estimated usable energy at the outlet — its 2,048 Wh rating, derated for a safe depth of discharge and ~15% inverter loss — then divide by the portable ac (small)'s 900W draw:

1,567 Wh ÷ 900 W ≈ 1.7 hours

Heads up: a portable ac (small) is a motor/compressor load that spikes 2–3× on startup. The EcoFlow Delta 2 Max's 2400W continuous / 3400W surge output has plenty of headroom for that spike.

Real-world runtime varies with temperature, cable losses, and how hard the appliance actually cycles. Treat this as a solid estimate, not a guarantee.

Check Delta 2 Max price → Full Delta 2 Max specs →