A charger (2) has two or more separate charging ports (8, 10) to which two or more rechargeable batteries (5, 6) can be coupled, respectively. Current from a single current source (28) is allocated to the two or more separate charging ports (8, 10) so that...

An improved handheld electronic device in conjunction with an improved holder for the handheld electronic device together form an improved electronic device. The handheld electronic device includes a first battery, and the holder includes a second battery ...

A holster for use with a mobile device and a peripheral device is disclosed herein. The holster provides a mating structure for holding a peripheral device so that a mobile device charges the peripheral device. The holster removes the inconvenience of havi...

In accordance with the teachings described herein, systems and methods are provided for charging a rechargeable power source in a mobile device through a USB port. A power converter may be used to receive an input voltage from an external power source and ...

The method involves entering a device charging state based on an input voltage. A central processing unit (12) in a mobile electronic device (10) is powered from the voltage. The unit receives power from a battery (16) and a universal serial bus host (22)....