Samsung SM-T638U User Manual page 10

Getting started
Wired charging
Connect the USB cable to the USB power adaptor and plug the USB Type-C cable into the
device's multipurpose jack to charge the battery. After fully charging, disconnect the charger
from the device.
Do not remove the battery before removing the charger. This may damage the device.
Quick charging
Launch the Settings app, tap Battery and device care → Battery → More battery settings,
and then activate the feature you want.
• Fast charging: To use the fast charging feature, use a Samsung-approved battery charger
that supports Adaptive Fast Charging.
You can charge the battery more quickly while the device or its screen is turned off.
Reducing the battery consumption
Your device provides various options that help you conserve battery power.
• Optimize the device using the device care feature.
• When you are not using the device, turn off the screen by pressing the Side key.
• Activate power saving mode.
• Close unnecessary apps.
• Deactivate the Bluetooth feature when not in use.
• Deactivate auto-syncing of apps that need to be synced.
• Decrease the backlight time.
• Decrease the screen brightness.
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