5/31/2023 0 Comments Microsoft surface book 2 15 inches![]() The display is a significant factor, as expected. On our 200 nit display brightness setting, that power requirement of the display drops to 4.1 W, which is still over double what the rest of the system is using at idle. At maximum brightness, and with the system at idle, the display draws 7.65 W of power, while the rest of the system only consumes 1.43 W of power. To dig in to this a bit more, additional testing was done to see just how much power the display draws. The larger display and higher resolution of the display are a significant impact on the battery life. Here, the larger battery size is removed, and the Surface Book 2 ends up about midfield. Normalized Resultsīy removing the battery capacity from the equation, we can see the efficiency of each device. At almost ten hours of battery life though, the Surface Book 2 still offers a lot of time off the mains. Our newer web test is more demanding of the CPU, and on devices like the Surface Book 2, where the CPU power usage is a significant factor in the overall power drain, the result is less battery life than our older, easier test. The tablet itself will still get several hours away from the base, which is more than enough time for the use case of the tablet, which is going to be for short sessions away from the base. The new model handily outperforms the outgoing Surface Book Core i7 though, despite the larger display and higher resolution. You feel kind of greedy when you feel like almost 14 hours of browsing isn’t enough, but it felt like the Surface Book 2 might really set a new record with the large 85 Wh of battery capacity. All of our browsing is done with Edge, and movie playback with the built-in Films and TV software, with the display set at 200 nits of brightness. Our battery life tests include our older 2013 web browsing test, a newer 2016 web browsing test which is more demanding, and a movie playback test. With the Surface Book 2 15, the battery capacity has increased, although so has the display size and resolution, so it’ll be interesting to see how that impacts the results. ![]() The original Surface Book we tested was the Core i5 model, and it offered amazing battery life that the Core i7 model with a discrete GPU couldn’t quite match.
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