One of the many ways of controlling battery consumption of your device is lowering the screen timeout duration, when device is inactive. To change screen timeout on LG G2, do as follows:
1. Open Settings and go to Display tab
2. Under Screen settings tap Screen Timeout.
3. Set when to turn of the screen automatically, from 15 seconds of inactivity, to 15minutes (You can also choose to always Keep Screen Turned On)
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