Originally Posted by
christopherhammond87
Hi team! I just ran into the same issue- 120W power supply on a Delta flight, the power outlet light just goes from green to dark (assuming it shut itself off).
I read through the thread and have purchased a 90W power supply to try next week- theoretically this should put enough power through to my laptop to extent its life right? It wont be able to keep up when it's running full bore- but maybe eek out another half hour to hour of life?
The short answer is "it depends on the laptop" but absent knowing what specific laptop it is, the best generalization I can give is "it's worth trying."
I actually have very recent replaced my M3800 with a Latitude E5470 which is just a touch faster (although a good bit slower than the present generation equivalent, the M5510) and has 32gb... and which works with an auto/air friendly 65W adapter (and has somewhat better battery life and keyboard.)