Reference

Reducing Battery Consumption

Using your tablet device as described below will reduce battery consumption.
  • Reduce the screen brightness (Tap [ Apps & Widgets] - [ Settings] - [Display] - [Brightness]).

  • Disconnect the USB devices.

  • Set a short period of inactivity for turning off the screen (sleep mode) automatically (Tap [ Apps & Widgets] - [ Settings] - [Display] - [Sleep]).

  • Press the power button lightly to turn the screen off (sleep mode) when you will not be using your tablet device.

  • Shut down your tablet device when you do not use it for a long time [Details].

  • Turn off each feature when you do not use Wi-Fi, Bluetooth, GPS, or Wireless WAN.

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