You are in free guest mode.
Timed Practice
Revision List
Attempt History
Progress Tracking
Create a free account to unlock these tools
Practice Listening: Fill in the Blanks (Type In)
ID: #3995
Medium
Smartphone
* Fill in the missing words into the blank fields
Smartphone battery down to 10 percent? Time to turn down the brightness on the screen, right? It's a classic strategy to squeeze more juice from the battery. And it works. But that trick might be less than you think. Because it turns out nearly half the battery drain on a phone happens when the screen's not even on. So says a study at a meeting of the Association for Machinery, in Portland, Oregon. Researchers eavesdropped on the activity of more than 1,500 Android phones - specifically, the Samsung Galaxy S3 and S4. They used an app they developed called eStar Energy Saver. The app logs the energy drain of the phone's apps and activities as they happen. (And you can try out eStar Energy Saver yourself, if you have an Android.) They found that some 45 percent of the battery drain happened while the screen was off. And a lot of that energy suck was apps updating in the background - downloading headlines and weather, while you're not using them. And different versions of the same app different energy supplies.
Result:
With a free account:
Retry and compare every attempt.
Be the first!
No community answers here yet — submit yours and help others learn.
Saving...