SiriusWatts

How long will the Anker 535 PowerHouse run a steam deck / handheld?

Will the Anker 535 PowerHouse run a steam deck / handheld?

Yes — the 535 PowerHouse runs a steam deck / handheld comfortably

Its 500W continuous output easily covers the 25W draw.

Estimated runtime
about 16 hours
on a single full charge
Est. usable (AC): 392 Wh
Appliance draw: 25 W
Continuous output: 500 W

How we calculated this

We start from the Anker 535 PowerHouse's 392 Wh of estimated usable energy at the outlet — its 512 Wh rating, derated for a safe depth of discharge and ~15% inverter loss — then divide by the steam deck / handheld's 25W draw:

392 Wh ÷ 25 W ≈ 15.7 hours

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

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