Patent ID: 8578187

Claim:
A portable power bank with memory card reading function adapted to connect to at least one electronic device, comprising: a battery unit being coupled with a charging unit and a voltage converting unit; and the battery unit storing an external power supply via the charging unit and outputting a battery power supply via the voltage converting unit, wherein the battery unit, the charging unit and the voltage converting unit are disposed within the portable power bank; a control unit disposed within the portable power bank and being coupled with the charging unit and the voltage converting unit, the control unit including a charging module, a card-reading-unit module, and a data transmission module, wherein the card-reading-unit module includes a host sub-module and a client sub-module; a first memory card reading unit being configured for a first removable electronic card to insert thereinto and being coupled with the control unit, so as to access the first removable electronic card under control of the control unit, wherein the first memory card reading unit is disposed within the portable power bank; a connection interface unit being coupled with the voltage converting unit and the control unit, and the electronic device being removably connected to the connection interface unit to access the first removable electronic card inserted in the first card reading unit and is supplied supplementary power by the battery unit, wherein the connection interface unit is disposed within the portable power bank; and wherein the host sub-module or the client sub-module of the control unit is actuated and the data transmission module informs the electronic device of the position of the card-reading-unit module when the electronic device is connected to the portable power bank, and the first removable electronic card inserted in the first card reading unit is accessed by the electronic device, and is used as an expanded memory capacity for the electronic device.