I have an old Toshiba Satellite notebook that runs fine direct from 12vdc.
Few if any of the newer notebooks will do that, as their voltage
requirements are much higher. Someone suggested the higher voltage was
mainly a battery charging requirement and that by removing battery some
notebooks will run off 12vdc. My new one didn't. And it draws lots of
current too, by comparison to old notebook -- more than most pocket
inverters can handle.
Len

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