Generator for oxygen concentrator?
Check, uncheck or adjust the typical device list below — watts, startup surge and battery size update instantly. Numbers come from U.S. DOE, ENERGY STAR and manufacturer spec sheets, not marketing copy.
1. Check what you need to power
Refrigeration & Freezers
Kitchen
Heating, Cooling & Fans
Water & Pumps
Laundry & Cleaning
Electronics & Office
- 1
Medical Devices
- 1
Power Tools & Outdoor
Lighting
2. Your sizing
⚠️ For medical devices (CPAP, oxygen concentrator) check the manufacturer's inverter waveform requirement (usually pure sine wave) and verify with your equipment supplier. Verify nameplate watts and starting amps before buying; consult a licensed electrician for fixed wiring.
Assumptions: daily hours per device follow DOE / ENERGY STAR duty cycles; capacity adds a 25% margin. Check your appliance nameplates — actual draw varies by model.
3. Best matches from our 6-brand database
- EcoFlow DELTA 3 Max Plusexpandable system~$1,149
- rated 3,000W covers your 320W continuous load
- surge 6,000W covers your 840W start peak
- base 2,048Wh + expansion batteries (up to 10,000Wh) covers your 8,700Wh need
- EcoFlow DELTA Pro 3expandable system~$2,799
- rated 4,000W covers your 320W continuous load
- surge 8,000W covers your 840W start peak
- base 4,096Wh + expansion batteries (up to 12,288Wh) covers your 8,700Wh need
- 120/240V split-phase output
- Jackery Explorer 2000 Plusexpandable system~$2,599
- rated 3,000W covers your 320W continuous load
- surge 6,000W covers your 840W start peak
- base 2,043Wh + expansion batteries (up to 24,000Wh) covers your 8,700Wh need
Static answer (crawlable summary)
Typical device list: Home Oxygen Concentrator (5 LPM class)×1, Router + Modem×1.
Estimated from: Mfr spec: Inogen (technical manual) · Mfr spec class: Netgear KB + measured (ARRIS SB8200)
| Continuous load | 290 W |
|---|---|
| Startup peak | 840 W (driven by 1× Home Oxygen Concentrator (5 LPM class)) |
| Daily energy use | 6,960 Wh |
| Recommended capacity | 8,700 Wh (25% margin included) |
| Minimum inverter | 320 W continuous |
Frequently asked questions
What size generator do I need for oxygen concentrator?
For a typical setup (Home Oxygen Concentrator (5 LPM class) and Router + Modem), you need at least 290W of continuous power. The single biggest moment is startup: when 1× home oxygen concentrator (5 lpm class) kicks on, the momentary draw peaks at 840W. For a full day of runtime we recommend at least 8,700Wh of battery capacity (your devices use about 6,960Wh per day, plus a 25% margin for a full day of use).
Which power stations can handle this?
Based on published specs, EcoFlow DELTA 3 Max Plus (with expansion batteries), EcoFlow DELTA Pro 3 (with expansion batteries), Jackery Explorer 2000 Plus (with expansion batteries) cover the 840W startup peak and deliver up to 1.4 days fully expanded / up to 1.8 days fully expanded / up to 3.4 days fully expanded of typical daily use. Check the comparison cards above for the full numbers.
Why is the startup surge higher than the running watts?
Motor-driven devices (fridge compressors, well pumps, air conditioners) draw 2-5× their running power for a split second at startup — measured as locked-rotor amps (LRA). On this page the biggest spike comes from the Home Oxygen Concentrator (5 LPM class): a station that only meets the running load will trip or stall when it starts. Data sources: U.S. DOE Energy Saver, ENERGY STAR certified products, manufacturer spec sheets.