In my battery test, I turn off all power-saving features, leave the Wi-Fi network on, crank up the screen to 100% brightness, and play a continuous loop of music.

在我的电池测试中，我关闭了所有节电模式，开着Wi - Fi网络，把屏幕亮度调到100%，并不停地循环播放音乐。

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In our standard video test (running an MPEG4 video clip on loop, WiFi on, screen at roughly 65 percent brightness), the iPad 2 managed an astonishing 10 hours and 26 minutes of non-stop playback.

在标准的视频测试中(循环播放MPEG4视频，打开WiFi，屏幕亮度设为65%)，iPad 2得到了10小时26分的好成绩。

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Light failure small (its brightness half-life) 2000 hours ageing test light failure is less than 2%.

光衰小(其亮度半衰期)2000个小时老化测试光衰小于2%。

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Our standard battery rundown test involves setting the brightness and volume to half, using 4G in a 75 percent or better signal area, enabling GPS and WiFi (not connected) and disabling Bluetooth while looping a video from a full charge until the battery is drained.

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In that test, I set the screen brightness to 75%, leave the wireless on and play locally stored videos back to back till the unit dies.

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In my test, where I use full brightness, disable power-saving software, leave on the Wi-Fi, and play a loop of music, the battery on the XPS 13 lasted just under four hours, the worst I've seen on an ultrabook.

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