A. This can result from 1 of 2 things. Either the charger is defective or the charger is not making contact with the tablet. To check if the charger is defective, while the tablet is on and connected to the charger, get the charger cable and slowly wiggle or bend back and forth. If the connection is made momentarily, this indicated a defective charger. The charger needs to be sent in for replacement. To check if the charger is not making a connection with the tablet, at the charger base hold and slowly wiggle or bend around. If the connection is made momentarily, this indicated a defective charging port. The unit will need to be sent in for repair.
A. In some cases the unit can register 95% charge but in reality it is just 10% charge. Doing a factory reset should resolve the issue. The playtime of a battery will be determined by how many circuits are running at all times. Having the Wi-Fi and /or Bluetooth (if applicable) will cut down on the battery playtime.