Originally Posted by
birdseye
I would not count on power outlets on airplanes working, the technology is not consistently available and implemented, and even if the airplane has it, there could be aircraft swaps prior to the flight or it could be MEL'd (documented and repair deferred, as it is not a no-go item).
I travel (as do many other persons) all the time with a portable O2 concentrator as allowed by the FAA. It runs on batteries which are sufficient for the flight with a 50% margin, again as required and approved by the FAA. My only question was would it work on the power outlets so I could use the batteries while on the ground. Never planned on them as being the only source of power since it may or may not work or even be there. Relying on aircraft power is not permitted by the FAA, hence the need for batteries. If a person needs a Portable O2 Concentrator, you must have your own power source and notify the Airline prior to flight, per FAA Regs.
If as Tentseller says it is limited to 75 Watts, it is insufficient to power the particular Portable Concentrator we typically use.
Thanks to all with factual info about the capacity and capability of the power outlets. BTW, on the trip back, the outlets worked fine, unlike the trip out, but without sufficient current to run to O2 Concentrator. It did charge my iPhone.
Cheers