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6. Check the battery usage lists.
6. 检查电池用量清单
Consumers can get even better results with a bit of sleuthing. Both the iPhone and Android systems provide a simple way to see which apps are using a lot of battery power. For iPhones and Android phones, open the Settings app and in the Battery menu, there are sorted lists of apps that are using the most energy.
消费者只需做一点调查，就能得到更好的体验。iPhone和安卓系统都有简便的方法，可以看到什么应用耗费了大量电量。打开“设置”的“电池”菜单，就可以看到各个应用使用电量的列表。
On the iPhone’s battery usage screen, tap the clock button to reveal information about how much of your battery life each app is consuming when you’re actively using the app (“screen”) compared with when you’re not (“backgd”). On Android, the most useful information are the timers for “CPU total” and “CPU foreground.” Foreground is how much time you had the app open; subtract “foreground” from “total,” and you’ll know how much time the app has been busy in the background.
在iPhone手机里，点击列表旁边的时钟，就可以显示出电池使用时的耗电量（“前台工作”）和不使用时的耗电量（“后台工作”）。在安卓手机里，最有用的信息是“CPU总量”和“CPU前台”的计时。前台计时是你打开这个应用的时间，用“总量”减去“前台”，就可以知道这个应用在后台耗费了多少电量。
