ThinkPad X1 Yoga Gen 2 Battery Life, Thermals And Acoustics
Battery Life - How We Test:
Our custom HotHardware video loop test takes a 1080p HD video with a 16Kbps bit rate and loops it repeatedly, with 1 minute break intervals in between. A timer log file increments minutes of uptime every minute along with the grand total before system shutdown, is stored in the log. This is a lighter duty test that is still a bit more strenuous than many office productivity tasks, but it's not nearly the strain that Battery Eater test puts on a system.
Battery Eater Pro wears systems down quickly with a heavy load on all subsystems, including processor, graphics, memory and even file transfers to storage. This is truly a worst-case test that will give you a sense of how a machine will hold up under heavy strain, when gaming or under heavy-duty continuous content creation workloads, for example.
ThinkPad X1 Yoga Gen 2 Acoustics And Thermals
Lenovo's latest generation ThinkPad X1 Yoga laptop has been upgraded with Intel's 7th Gen Kaby Lake series CPUs and is measurably faster in many tests versus the previous generation X1 Yoga. However, acoustically and thermally the two machines are very similar. That is to say that the Lenovo ThinkPad X1 Yoga does have a warm spot on the underside of the machine, towards the back underneath the display hinge, but we wouldn't call it "hot." We measured a skin temperature of about 97ºF at its warmest point on the bottom of the machine. That's still fairly comfortable.
In terms of noise output, only under heavier workloads do you hear the X1 Yoga's fans spin up to audible levels and then there's generally not any point in time where the machine fans are offensively loud. All told, the ThinkPad X1 Yoga Gen 2, like its matte black finish, is a stealthy, cool operator.