SizingPlate
Power stations › Scenarios › Oxygen concentrator backup

What size power station do I need to run an oxygen concentrator?

For a home oxygen concentrator, a power station is a quiet, indoor-safe bridge through an outage — no generator fumes near someone who is already short of breath. Sizing depends heavily on the specific machine, so treat this as a starting point, not the final word.

The load

POWER PLATE1 LOAD · 8 H RUNTIME
Continuous draw
350 W
Startup surge
600 W
Energy for 8 h
3,294 Wh
Buy at least
3,700 Wh
Look for ≥3,700Wh capacity, ~350W continuous / 600W surge or better.

Field note: Concentrators vary widely in draw and many pulse rather than run continuously — check your unit's label and size up from there. For a medical load like this, build in extra capacity and a clear backup plan (a second charged station, a portable oxygen cylinder), and talk to your equipment provider about their outage guidance. Never rely on a single point of failure for life-support equipment.

Right size: Expandable home backup (≈6,000Wh+) · 5,000W

Typical price $3,500-6,000+ · e.g. EcoFlow Delta Pro Ultra, Bluetti AC500 + B300S (stackable)

Backing up whole circuits through a transfer switch; add battery modules for days of autonomy, especially with solar. A home-backup system, not a grab-and-go unit. For 240V loads or true whole-home coverage, compare against a standby generator.

Runs this load ~13 h on a full charge.

See current prices on Amazon

Adjust for your setup

Different loads or runtime? Uncheck and re-check below and drag the runtime slider — the plate recomputes live.

POWER PLATE1 LOAD · 8 H RUNTIME
Continuous draw
350 W
Startup surge
600 W
Energy for 8 h
3,294 Wh
Buy at least
3,700 Wh
Look for ≥3,700Wh capacity, ~350W continuous / 600W surge or better.

Capacity includes inverter loss (~15%) and a usable-charge margin, so the station isn't run flat. A solar panel or vehicle charge extends runtime past this number.

8 h
Kitchen
Heating & cooling
Pumps & well
Electronics
Medical & safety
Lighting
Laundry
Household
Tools & outdoor
RV & camping

Power stations that fit

Right size: Expandable home backup (≈6,000Wh+) · 5,000W

Typical price $3,500-6,000+ · e.g. EcoFlow Delta Pro Ultra, Bluetti AC500 + B300S (stackable)

Backing up whole circuits through a transfer switch; add battery modules for days of autonomy, especially with solar. A home-backup system, not a grab-and-go unit. For 240V loads or true whole-home coverage, compare against a standby generator.

Runs this load ~13 h on a full charge.

See current prices on Amazon
This site earns commissions from qualifying purchases made through links to Amazon and other retailers, at no extra cost to you. Wattage figures are typical estimates — actual draw varies by model. Always verify against your appliance's nameplate, and consult a licensed electrician for any panel or hardwired connections.