Surface Book 2 Charger Wattage. If you have a model with a gpu in the base the system will use more power than that while playing some games. The surface book 2’s problem seems to boil down to this:
It supports usb power delivery revision 3.0 which supports 4 different power rules (5v, 9v, 15v, and 20v) with the. 15 volts @ 2.58 amps = 39 watts: However, if you are using the surface book 2 to game, and it's a very intensive game such as destiny 2, the laptop will draw the full 105 watts of power.
Chargers that provide 5 volts, 1.5 amps, or 7.5 watts can charge, but they’ll be so slow that they should only be used if there’s no other option.
Made exclusively for surface* and designed to match its look and feel, the 65w power supply quickly recharges the battery, while the usb port lets you charge another device at the same time. 5 volts @ 1 amp = 5 watts: This product guarantees to meet the needs of the original specifications. Surface devices will only charge with usb 2.0 or 3.0 compliant chargers.