Getting started15• The device can be used while it is charging, but it may take longer to fully chargethe battery.• If the device receives an unstable power supply while charging, the touch screenmay not function. If this happens, unplug the charger from the device.• While charging, the device may heat up. This is normal and should not affect thedevice’s lifespan or performance. If the battery gets hotter than usual, the chargermay stop charging.• If the device is not charging properly, take the device and the charger to aSamsung Service Centre.After fully charging, disconnect the device from the charger. First unplug the charger from thedevice, and then unplug it from the electric socket.To save energy, unplug the charger when not in use. The charger does not have apower switch, so you must unplug the charger from the electric socket when not inuse to avoid wasting power. The charger should remain close to the electric socketand easily accessible while charging.Reducing the battery consumptionYour device provides options that help you save the battery power. By customising theseoptions and deactivating features in the background, you can use the device longer betweencharges:• When you are not using the device, switch to sleep mode by pressing the Power button.• Close unnecessary apps using the task manager.• Deactivate the Bluetooth feature.• Deactivate the Wi-Fi feature.• Deactivate auto-syncing of apps.• Decrease the backlight time.• Decrease the screen brightness.