PiPO S3 - Manual (Page 17)

１７
VIII. Battery
Very Low Battery Full Battery Charging Battery
‘ ’ indicates that the power of Battery is full. When the battery level becomes
too low, a prompt comes up to note you to charge the tablet.
While charging, you can check the charging status in the lock screen:
It takes around 5 hours to charge the tablet to full battery. Please only use a
5V /2.5A adaptor included in the gift box to charge it.