vincew
Newbie level 2
Hi, I have noticed that my laptop power supply is rated at 100-240v 1.7A, 19v 3.42a 65w.
looking at the input 240vx1.7A gives 408w however the output is only 65w.
as far as i understood watts were watts, i am sure the psu is not glowing with the spare 300+ watts
can someone please explain where i am going wrong with my thinking?
Cheers
Vince
just wanted to add that i put it on a watt meter and it never pulled above 51 w
looking at the input 240vx1.7A gives 408w however the output is only 65w.
as far as i understood watts were watts, i am sure the psu is not glowing with the spare 300+ watts
can someone please explain where i am going wrong with my thinking?
Cheers
Vince
just wanted to add that i put it on a watt meter and it never pulled above 51 w
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