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Short answer: a portable oxygen concentrator (POC) runs on a rechargeable battery whose runtime is stated by the manufacturer for specific battery sizes and flow settings, so one number never applies to every unit. For air travel in the United States, 14 CFR 382.133 lets an airline require a passenger to bring enough fully charged batteries to power the device for not less than 150% of the expected maximum flight duration. This guide is general product and regulatory information, not medical advice.
Definition and scope
An oxygen concentrator battery is the rechargeable power pack that lets a portable oxygen concentrator operate away from a wall outlet. The device itself is described in What Is an Oxygen Concentrator?; this page covers only the power side: how runtime and power input are specified, what the aviation rules say about batteries, and what to check on a label. Stationary home concentrators plug into mains power and are outside this page. For the related CPAP case, including watt-hour ratings, see CPAP Battery: Watt-Hour Ratings, Runtime and Airline Limits; that table is not repeated here.
How runtime and power are specified
Manufacturers publish runtime per battery option, and the figure is a maximum under stated conditions. One manufacturer’s published specification sheet for the Inogen Rove 6 (checked 2026-10-30) is a useful example of the pattern. It is cited here as one example only, not as a recommendation.
- Standard battery (BA-500): up to 6 hours 15 minutes; recharge up to 3 hours with AC or DC power.
- Extended battery (BA-516): up to 12 hours 45 minutes; recharge up to 4 hours. The sheet’s footnote ties this figure to use on flow setting 1.
- Weight: 4.8 lb with the standard battery and 5.8 lb with the extended battery.
Power requirements: what the input values look like
The same sheet lists the charging inputs. These are the values a facility compares against the outlets or vehicle supply it has.
- AC power supply: 100-240 VAC, 50-60 Hz, 120 W, 24 V output.
- DC input: 13.5-15.5 VDC, 10 A maximum.
- Accessories listed separately from the concentrator include the standard battery, the extended battery, a battery charger (BA-503) and a DC cable.
Other models publish different numbers; the point is that runtime, recharge time, weight and input ratings are all model- and battery-specific and are found in the manufacturer’s specification sheet or instructions for use.
What the aviation rules say about batteries
The 150% rule
14 CFR 382.133 applies to a portable oxygen concentrator, ventilator, respirator or CPAP machine that displays a manufacturer’s label indicating it meets FAA requirements, and to listed models accepted whether or not labeled. Paragraph (h)(2) states that the airline may require the passenger “to bring an adequate number of fully charged batteries onboard, based on the battery manufacturer’s estimate of the hours of battery life while the device is in use and the information provided in the physician’s statement, to power the device for not less than 150% of the expected maximum flight duration.” The word is “may”: it is the carrier’s option, so the requirement a passenger meets depends on the airline.
Worked example (illustrative arithmetic only)
The figures below are not a recommendation for any unit or flight; they show how the check is done with sourced numbers.
| Expected maximum flight duration | 150% requirement | Comparison with the specification-sheet maximums above |
|---|---|---|
| 3 hours | 4.5 hours | Below the 6 h 15 min standard-battery maximum, but that maximum is “up to”; the real figure depends on the setting in use. |
| 6 hours | 9 hours | Above the standard-battery maximum; needs additional battery capacity. The extended-battery figure of 12 h 45 min is stated for flow setting 1 only. |
| 8 hours | 12 hours | Close to the extended-battery maximum, which applies only at setting 1; the margin disappears at other settings. |
The lesson is that a headline runtime is a ceiling. The comparison must use the runtime that applies to the flow setting actually in use, taken from the manufacturer’s data, and the physician’s statement is part of the regulation’s wording.
Acceptance criteria and the label
14 CFR 121.574(e) sets the criteria for carrying and using a POC on board (checked 2026-10-30). The device must be legally marketed in the United States under FDA requirements; must not radiate radio-frequency emissions that interfere with aircraft systems; must generate a maximum oxygen pressure of less than 200 kPa gauge (29.0 psig/43.8 psia) at 20 °C; and must contain no hazardous materials except batteries as provided in 49 CFR 175.10 that need no operator approval. The exterior carries a red-lettered label reading that the manufacturer “has determined this device conforms to all applicable FAA acceptance criteria.” The label requirement does not apply to 24 listed models the FAA approved before May 24, 2016. Paragraph (e)(2) bars a POC user from an exit seat and requires stowage under the seat in front during surface movement, takeoff and landing without blocking the aisle or entryway. Paragraph (b) prohibits smoking or open flame within 10 feet of a POC. For wider battery shipping rules see lithium battery shipping regulations.
Read-the-label checklist
- Runtime for each battery option, and the flow setting each figure refers to.
- Recharge time and the charging source it assumes (AC or DC).
- AC input range and DC input range, so the unit matches the supply available.
- The red FAA acceptance label, or confirmation that the model is one of the listed pre-May-2016 models.
- Battery weight and whether the extended option changes the unit weight.
- The airline’s own requirement for spare batteries relative to the expected flight duration.
Where it matters for labs, clinics and supply decisions
Staff who handle equipment records, loan stock or travel paperwork need the battery option documented alongside the unit, because the specification sheet lists the standard battery, extended battery, charger and DC cable as separate accessories. Home-use safety around oxygen is covered in home oxygen safety, and how equipment of this kind is categorised is in the durable medical equipment list.
Common misunderstandings
- “One runtime number applies to every setting.” The cited sheet qualifies the extended-battery figure with flow setting 1.
- “The 150% rule is a universal law for every passenger.” The regulation says an airline may require it.
- “Any battery that fits is acceptable.” The regulation refers to the battery manufacturer’s estimate of battery life, and 121.574 limits batteries to those meeting 49 CFR 175.10.
FAQ
How long does a portable oxygen concentrator battery last?
It depends on the model, battery size and flow setting. One manufacturer’s sheet gives up to 6 h 15 min (standard) and up to 12 h 45 min (extended, at setting 1) for its unit.
What are the power requirements of a portable oxygen concentrator?
They are model-specific. The cited sheet lists 100-240 VAC, 50-60 Hz, 120 W for the AC supply and 13.5-15.5 VDC, 10 A maximum for DC input; check the label and instructions for the unit in question.
Can a portable oxygen concentrator be used on a flight?
Under 14 CFR 121.574(e) a POC must meet the listed criteria, including the manufacturer’s red FAA acceptance label (with the 2016 exception), and an airline may require batteries for 150% of the expected maximum flight duration under 14 CFR 382.133(h)(2).
Sources
- 14 CFR 382.133, eCFR and Cornell LII (law.cornell.edu/cfr/text/14/382.133), checked 2026-10-30.
- 14 CFR 121.574 (law.cornell.edu/cfr/text/14/121.574), checked 2026-10-30.
- Inogen Rove 6 specification sheet, manufacturer PDF (cdn.inogen.com), checked 2026-10-30; used as one example of how a manufacturer states battery and power data.
