PCWorld’s standard laptop battery test turns off adaptive brightness and places devices into airplane mode, and then loops the PCMark 7 Productivity Suite and a video (using the VLC player) in 10-minute intervals until the machine poops out. The firmware update enhanced the Surface Pro 2’s endurance in this test by 24 minutes, as you can see in the chart above—a welcome improvement, but not an earth-shattering one at merely six percent.
But wait! AnandTech reported that the firmware update improves battery life by allowing the Marvell Wi-Fi chip inside to settle down in lower power states. That publication’s testing showed a whopping 25 percent leap in battery life when browsing websites post-update. We also ran a Wi-Fi browsing benchmark, using Google Chrome to visit a list of 20 different websites every 30 seconds.
測試結果
