Patent ID: 7642671

Claim:
A power supply system comprising: a power circuit comprising a switch and adapted to generate a first output voltage or a second output voltage, depending on a state of the switch; an output connector coupled to the power circuit, wherein the output connector includes a plurality of electrical contacts comprising a first electrical contact and a second electrical contact; a voltage output indicator device coupled to the first and second electrical contacts, wherein the voltage output indicator device indicates that the power circuit is producing the first output voltage or the second output voltage; a first connector capable of being detachably coupled to the output connector; and a second connector capable of being detachably coupled to the output connector, wherein the first and second connectors are also capable of being coupled to different electronic devices, and wherein the power circuit is adapted to provide only the first output voltage or the second output voltage through the output connector, wherein the first output voltage is about 16 V and the second output voltage is about 19 V.