Originally Posted by
morges1
Thanks LTN Phobia, the one I have been using is 90W. It always works with aircraft without the new Thales IFE. BA says that the socket power is limited to a maximum of 100 or 125 watts depending on the system. Apparently this is becoming a common problem, including the new 78 fleet. It becomes a real problem if it is not possible to work on a daytime flight, which one of my regular flights BKK-LHR is becoming!
I think you may be able to get a less power-hungry charger that works for your laptop and therefore works on aircraft also (or a laptop itself with lower power requirement and the accompanying charger for it, although that may be a bit of a big ask). If it says 90W tends to be the maximum it is rated for (I think) rather than the actual consumption but it may well be that it's using less but still causing problems.
For what it's worth my MacBook Air charger is 45W I think, and my old Sony one was 60W, and the one before was 60W I think. I haven't had a problem but I recall my husband had a problem with his 90W charger on Thales equipped aircraft.