Originally Posted by
tentseller
If you need longer power, you can rent(hire) battery pack with 110V (220V on your side of the pond). One big user of these "power pack" are photographers who need to power their lights. London area professional photo equipment rental shops should have some.
This is what I use, they have a 230V Europe version. I am sure there are others available locally.
http://alienbees.com/vmini.html
Thank you so much for sharing the information!
For this flight we are set, since British provides free in flight medical oxygen and the POC batteries should be plenty for bathroom trips and walking up and down the isle if need be. We should be able to charge during our overnight layover. Four hours of batteries for each leg of a 5 and 7 hour flight sounds safe to me, as long as they provide the oxygen like they said they would.
Now if I could get my brother to fix his cpap I could give him the information on how to fly with it as well. He is a really tall guy so he always flies first. I am sure that if there is electricity on the plane it is up there though, right?