The demo shows off a 90 W adapter pretending to run at 65 W. With this working, you could power the laptop from any supply that can meet the requirements for current and voltage.

Computers use multiple DC voltages, and the power adapter is the external part of the power supply for a laptop. The additional DC voltages are created by internal circuits. Desktop computer power ...

Curious if you can power a monitor through your computer's USB port? Learn when it's possible, what you'll need, and how it ...

If you have a new laptop with USB-C, you could charge it with a power bank or car adapter. If your job relies on having a working laptop at all times, then you'll need a way to keep it charged in ...