Patent ID: 8013576

Claim:
A computing system for supplying power to an electronic device from a power supply device, the power supply device comprising a power supply battery and the electronic device comprising a power charging battery, the system comprising: a setting module configured for setting a minimum power level of the power supply battery of the power supply device; a detection module configured for measuring a current power level of the power supply battery of the power supply device, and determining a current supply of the power supply battery of the power supply device; a determination module configured for determining if the current supply of the power supply battery exceeds a preset minimum power level; the setting module further configured for setting a required power level if the current supply of the power supply battery exceeds the preset minimum power level; a control module configured for ceasing charging the power charging battery of the electronic device if the current supply of the power supply battery is less than or equal to the preset minimum power level; a charging module configured for extracting power according to the required power level, and transferring the extracted power to the power charging battery of the electronic device; and at least one processor executing the setting module, the detection module, the determination module, the control module, and the charging module to supply power from the power supply battery of the power supply device to the power charging battery of the electronic device.