BATTERY MANAGEMENT
The battery is not fully charged when you use the device first time, so it is recommended that you charge the battery for at least 6 hours before you use the device.
The rechargeable battery is designed and manufactured to be used and recharged frequently. As with all batteries, the capacity of the battery reduces each time it is charged/depleted. However, you can still try to prolong the battery's lifetime by the suggestions as below:
Use your tablet at least once a week.
Charge the battery regularly and fully.
Never leave the battery fully discharged for a long period of time.
Always keep the device and the battery away from heat.
Charge battery
Plug the power adapter into an electrical outlet, and then connect to the device to fully charge the battery before use (A full charge takes about 6 hours when the battery is run out).
You cannot charge the battery using the USB cable.
When fully charged, the battery icon displays as 
.
A fully discharged battery takes approximately 6 hours to fully charge when the battery is run out, but you can use the device while plugged in if necessary.
21