Lenovo TAB3 8 Guide De Démarrage Rapide page 6

Starting to use your tablet
You might need to charge the battery before using your tablet.
Charge the battery as shown.
Connect your tablet to a power outlet using the cable and USB power adapter provided.
Low battery
Turning on/off
Taking screenshots
Press and hold the On/Off button and the Volume down button at the same time.
Fully charged
Turn on: Press and hold the On/Off button until the Lenovo logo
appears.
Turn off: Press and hold the On/Off button for a few seconds,
then tap Power off.
Restart: Press and hold the On/Off button for about 10 seconds.
4
Charging