Samsung 10.1 - Manual (Page 13)

Getting Started 6
Removing the 4G LTE SIM Card
Important!: Turn the device off before installing or removing the SIM card. To
turn the device off, press and hold the Power/Lock Key.
1. Open the SIM card slot and gently push the 4G LTE SIM
Card inward to release it.
2. Carefully slide the 4G LTE SIM Card out of the slot.
Battery
Your device is powered by a rechargeable, standard Li-Ion
battery. A Wall/USB Charger (Charging Head and USB cable) are
included with the device, for charging the battery.
Note: The battery comes partially charged. You must fully charge the battery
before using your device for the first time. A fully discharged battery
requires up to 4 hours of charge time.
After the first charge, you can use the device while charging.
Warning!: Use only approved charging devices. Approved accessories are
designed to maximize battery life. Using other accessories may
invalidate your warranty and may cause damage.
Battery Indicator
The battery icon in the System Bar shows battery power level.
Before the battery becomes too low to operate, the empty battery
icon will flash and a tone will sound. If you continue to operate
the device without charging, the device will shut down.