A portable computing device, comprising: a component being adapted to receive an electro-magnetic flux generated from an external flux source; a charging component being adapted to generate a charging current from the flux, and to charge a rechargeable power supply with the charging current, and characterized by: a controller (12, 21) that is adapted: to monitor a state of charge of the rechargeable power supply, to determine a time required to fully charge the rechargeable power supply of the portable computing device, and to allocate a duration required for partial charging of the rechargeable power supply of the portable computing device; wherein the controller further comprises: an artificial intelligence component adapted to infer and/or determine when the rechargeable power supply should be recharged, and a notification component adapted to notify a user of the portable computing device that the portable computing device should be exposed to the external flux source for the duration of the time period required for partial charging of the rechargeable power supply. a component being adapted to receive an electro-magnetic flux generated from an external flux source; a charging component being adapted to generate a charging current from the flux, and to charge a rechargeable power supply with the charging current, and characterized by: a controller (12, 21) that is adapted: to monitor a state of charge of the rechargeable power supply, to determine a time required to fully charge the rechargeable power supply of the portable computing device, and to allocate a duration required for partial charging of the rechargeable power supply of the portable computing device; wherein the controller further comprises: an artificial intelligence component adapted to infer and/or determine when the rechargeable power supply should be recharged, and a notification component adapted to notify a user of the portable computing device that the portable computing device should be exposed to the external flux source for the duration of the time period required for partial charging of the rechargeable power supply. a controller (12, 21) that is adapted: to monitor a state of charge of the rechargeable power supply, to determine a time required to fully charge the rechargeable power supply of the portable computing device, and to allocate a duration required for partial charging of the rechargeable power supply of the portable computing device; wherein the controller further comprises: an artificial intelligence component adapted to infer and/or determine when the rechargeable power supply should be recharged, and a notification component adapted to notify a user of the portable computing device that the portable computing device should be exposed to the external flux source for the duration of the time period required for partial charging of the rechargeable power supply. to monitor a state of charge of the rechargeable power supply, to determine a time required to fully charge the rechargeable power supply of the portable computing device, and to allocate a duration required for partial charging of the rechargeable power supply of the portable computing device; wherein the controller further comprises: an artificial intelligence component adapted to infer and/or determine when the rechargeable power supply should be recharged, and a notification component adapted to notify a user of the portable computing device that the portable computing device should be exposed to the external flux source for the duration of the time period required for partial charging of the rechargeable power supply. an artificial intelligence component adapted to infer and/or determine when the rechargeable power supply should be recharged, and a notification component adapted to notify a user of the portable computing device that the portable computing device should be exposed to the external flux source for the duration of the time period required for partial charging of the rechargeable power supply.