Whenever I am on a long flight, I try to be as efficient as possible in laptop usage. Everything that I don't need is switched off, from WiFI and bluetooth, to any other unneeded app. I mainly need to write, so this way I can manage up to 5 hours. On my previous Mac, I simply had an additional battery packed, which would allow me twice the amount of working time. Unfortunately Apple decided to make the battery an integral part of the laptop.
On my 11 hour flight last week, there was however this guy who was working all the time on his laptop and he I saw him coding and compiling all the time. I intended to ask him how he managed to do that with external power available, while deplaning, but I simply forgot :(.
My question is how can I work on a macbook pro longer then 5-6 hours when on a long flight with no external power available?