Only about 95W goes to the Surface Book 2 as the remaining seven watts is used for the USB Type-A port for external charging.

The included 102W AC adapter may not be large enough given extreme situations. Other games like LEGO Marvel Superheroes 2, Assassin's Creed Origins, PUBG, DOOM, and Overwatch, reportedly did not have any problems. World of Tanks also reportedly drained around five percent an hour as did Middle Earth: Shadow of War at high settings with anti-aliasing configured to TAA. One user noted that Fornite at 'epic settings' drained around 10 percent over an hour. In a related Reddit thread, I asked users to submit other games and scenarios where battery drain occurred. You can change the game settings, including its resolution, and even make them better while not getting battery drain. The Destiny 2 issue, however, is complicated. Anti-aliasing, texture anisotropy, and texture quality are either on or set to near-max settings.Īt these settings, with Best performance enabled and plugged in with the display brightness set to maximum, the Surface Book 2 15's battery can drain between five and 10 percent per hour.ĭestiny 2 at native resolution on the Surface Book 2. Users cannot manually change that resolution either in the game settings – which is odd. Destiny 2 defaults to a weird 1282 x 728 resolution, instead of something at, or near, the native 3240 x 2160. The answer to this one can be difficult, as it depends on the game's display settings.ĭestiny 2 is cited as the most common example, but it's not across the board. You can read more about Microsoft's Power Throttling and Power Slider in its detailed blog post on the subject. When a user forces the slider to Best performance, this energy saving feature is disabled letting the processor max out.Īdditionally, power throttling does not apply when the Surface is plugged into external power.

With 'Power Throttling,' when background work is running, Windows places the CPU in its most energy efficient operating modes – work gets done, but the minimal possible battery is spent on that work. It was initially introduced in January 2017 to Windows Insiders and is part of the larger 'Power Throttling' and 'Power Slider' feature found in Windows 10.

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