Aeroscope uses a standard micro USB connector to charge its battery. Aeroscope can be charged from nearly any USB port. It can be plugged into a computer's USB port or powered from a USB power "brick" that plugs into the wall.
Aeroscope's button will blink yellow while it is charging and blink green when it is fully charged.
The charging port is not isolated, so keep in mind that Aeroscope's ground is no longer floating if you use it while connected to a USB port.