Patent ID: 7816885
Filing Date: 2010-10-19
Classification: H02J,H04M

Abstract:
1. A method of charging two rechargeable power supplies comprising: providing a charging system; providing a universal serial bus (USB) connection; sending an identification signal via the USB connection, using the USB's data lines; providing a first charging current to a first rechargeable power supply via the USB connection using the V-bus power line, the first charging current enabled to exceed USB 2.0 current draw limitations; recognizing the identification signal to draw the first charging current at a level that exceeds USB 2.0 current draw limitations; drawing the first charging current that exceeds USB 2.0 current draw limitations; determining an available second charging current based on a difference between the first charging current and a maximum output of the charging system; and while continuing to provide the first charging current using the USB's V-bus power line, charging a second rechargeable power supply by providing the second charging current based on the available second charging current.