System, charging device, and method of charging power storage device

A system for charging a plurality of power storage devices includes a first charging device and a second charging device coupled to the first charging device to form a network. The first charging device includes a processor programmed to determine whether said first charging device possesses a network token, and if so, to determine a first charging parameter and a first priority associated with said first charging device, a second charging parameter and a second priority associated with said second charging device, and to determine a second amount of current to be at least one of received from the electrical supply or supplied to a first power storage device, based on the determined first and second charging parameters and first and second priority.