How long will the Anker 521 PowerHouse run a phone charge?

Q: Will the Anker 521 PowerHouse run a phone charge?

Yes — the 521 PowerHouse runs a phone charge comfortably. Its 200W continuous output easily covers the 10W draw.

Q: How long will the Anker 521 PowerHouse run a phone charge?

The Anker 521 PowerHouse has 256 Wh (about 196 Wh usable at the outlet, estimated). Running a phone charge that draws 10W, it lasts about 20 hours on a single full charge.

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Will the Anker 521 PowerHouse run a phone charge?

Yes — the 521 PowerHouse runs a phone charge comfortably

Its 200W continuous output easily covers the 10W draw.

Estimated runtime

about 20 hours

on a single full charge

Est. usable (AC): 196 Wh

Appliance draw: 10 W

Continuous output: 200 W

How we calculated this

We start from the Anker 521 PowerHouse's 196 Wh of estimated usable energy at the outlet — its 256 Wh rating, derated for a safe depth of discharge and ~15% inverter loss — then divide by the phone charge's 10W draw:

196 Wh ÷ 10 W ≈ 19.6 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.

Check 521 PowerHouse price → Full 521 PowerHouse specs →