The Verge mentioned in their review that the Surface Book 2's power supply can't charge the battery fast enough to prevent it from draining in some cases. Microsoft has since confirmed that "in some intense, prolonged gaming scenarios with Power Mode Slider set to 'best performance' the battery may discharge while connected to the power supply." Engadget reports: To let you choose between performance and battery life, the Surface Book has a range of power settings. If you're doing video editing or other GPU intensive tasks, you can crank it up to "best performance" to activate the NVIDIA GPU and get more speed. Battery drain is normally not an issue with graphics apps because the chip only kicks in when needed. You'll also need the "best performance" setting for GPU-intensive games, as they'll slow down or drop frames otherwise. The problem is that select titles like Destiny 2 use the NVIDIA chip nearly continuously, pulling up to 70 watts of power on top of the 35 watt CPU. Unfortunately, the Surface Book comes with a 102-watt charger, and only about 95 watts of that reaches the device, the Verge points out. Microsoft says that the power management system will prevent the battery from draining completely, even during intense gaming, but it would certainly mess up your Destiny 2 session. It also notes that the machine is intended for designers, developers and engineers, with the subtext that it's not exactly marketed as a gaming rig.