Originally Posted by
StrongEagle
I have an HP laptop with the i720 processor. Because of this, it comes with a 120 watt power supply.
I recently flew a SQ A380 flight, biz class from SIN to MEL. When I plugged in, the power dropped off, as though tripping a circuit breaker. This same phenomenon occurred when tested on several other seats.
Coming back, I rode a SQ 747, top cabin. The same thing occurred.
What is the max allowed power draw on these power points? I want to buy a smaller power supply, just under the limit.
TIA
120W is pretty damn chunky for a laptop. Most Dells will run on 65W although a few are 90W for charging and 65W for running without charging. I've yet to see a 120W PSU for a lappie, but then again with the current climate I rarely see people speccing i7s for laptops.
I do know there's a maximum draw in planes though, as this was explained in the inflight guide on a plane I was in recently. I can't remember what it was, but it was certainly less than 3 figures.