Add on an extra battery for the Makeblock Airblock Drone! Having an extra battery and charger will allow you to charge multiple batteries at once, prolonging the fly time of your drone. Find the extra charger here.
The Makeblock Airblock Drone battery can be fully charged in about an hour when using the adapter with the output of 5V2A. Make sure to pay attention to the direction of the battery when inserting it into the charger.