Patent ID: 8694809

Claim:
A physical processor connected to an electronic device, the electronic device including a rechargeable battery, a connector, a storage medium, and an operation unit, the processor being configured to: detect, by the physical processor, a connection between the electronic device and an external device; control, by the physical processor, charging of the rechargeable battery so that the rechargeable battery is charged by a first predetermined current from the external device; determine, by the physical processor, whether the external device is a predetermined power supply apparatus based on a state of two signal pins of the connector when the external device is connected to the electronic device via the connector; control, by the physical processor, communication with the external device via the connector so that the rechargeable battery is charged by a second predetermined current from the external device when the external device is determined to be the predetermined power supply apparatus, the second predetermined current being greater than the first predetermined current; or the first redetermined current or the second redetermined current from the external device when the external device is determined not to be the predetermined power supply apparatus; and control, by the physical processor, to playback content data stored in the storage medium based on a command from the operation unit by using power of the rechargeable battery.