Portable power charger with two-way charging interface

A portable charger unit for recharging at least one electronic device having a rechargeable internal battery, said portable charger unit comprising:

• a charger housing internally storing a rechargeable battery;
• a power connection port operatively connected to the internal battery capable of acting as a power input and a power output depending on what is connected to the charger unit via the power connection port;
• and
• a connector cable having a first end adaptable for connection with the power connection port and at least a second free end capable of connecting the charger unit with at least one of an external power source and at least one electronic device;
• wherein said charger unit acts as a power input when the power connection port is connected to an external power source that provides an electrical charge to the charger unit via the connector cable, and said charge is used for recharging the internal battery when the charger unit is connected to said power source;
• and
• wherein said charger unit acts as a power output when the power connection port is connected to at least one electronic device via the connector cable, and a charge is provided from the internal battery of the charger unit to the electronic device to recharge the internal battery of said electronic device when said electronic device is connected to the charger unit.

A method for using a portable power charger having a rechargeable internal battery operatively connected to a power connection port capable of operating in a power input mode and a power output mode, said method comprising:

• connecting the power charger to a first end of a connector cable via the power connection port of the power charger;
• placing the power charger in the power input mode if a second end of the connector cable is connected to an external power source, whereby an electrical charge is provided to the internal battery from the external power source to recharge the internal battery;
• and
• placing the power charger in the power output mode if the second end of the connector cable is connected to at least one electronic device having an internal battery, whereby an electrical charge is provided from the internal battery of the power charger to recharge the internal battery of the at least one electronic device.

A method for using a portable power charger having a rechargeable internal battery and a processing unit each operatively connected to a power connection port, said method comprising:

• determining, using the processing unit, if a connector cable is connected to the power connection port;
• and, if so
• determining, using the processing unit, if the connector cable is also connected to at least one of (i) an external power source supplying an electrical charge through the connector cable, and (ii) an electronic device attempting to draw an electrical charge through the connector cable;
• and, if so
• turning on the power charger.