Patent attributes
Disclosed herein is a rechargeable power bank, comprising a charging system comprising a controller coupled to a receiving system in electrical communication with an electrical storage device; configured to harvest energy from one or more directional electromagnetic energy beams provided by an external wireless charging system over a distance of greater than about 50 cm, convert the harvested energy into electrical energy, and direct the electrical energy into the electrical storage device, wherein the controller is configurable to direct or not direct the electrical energy from the electrical storage device into an attached electronic device to power and/or recharge the attached electronic device based on one or more authorization criteria. A method of utilizing the power bank is also disclosed.