The battery graph also gives you a summary of Mobile Network Signal, Awake time, Screen on time, and Charging as these are the major factors for battery life.
In case of Mobile Network Signal, the colour stands for
- Red: No Signal, Yellow: 2G, Green: 3G/4G
Battery consumes more power under ‘No Signal’. This is because the device keeps searching for optimal network signal.
If the phone is ‘awake’ for long periods while the screen is off, this indicates that applications running in the background are causing the battery to drain
Battery Life – Power Saving Mode
In addition, you can extend your battery life by using power saving mode.
Application > Settings >(My device or General)> Power saving