Patent ID: 8415923

Claim:
A system comprising: a charging unit and a mobile computing device external to the charging unit, wherein the charging unit comprises: electrical connectors for electrically coupling the charging unit to at least one rechargeable battery located on the mobile computing device and for providing an electrical charge thereon, a charging circuit electrically coupled to the electrical connectors, the charging circuit configured to be coupled to an electrical power source for providing an electrical charge for charging the at least one rechargeable battery via the electrical connectors, wherein the charging unit is further configured to be responsive to an impedance at the electrical conductors to compensate for the impedance at the electrical connectors, a charging processor configured to: receive pre-defined battery parameters associated with the at least one rechargeable battery on the mobile computing device, determine an occurrence of a current decrease for the at least one rechargeable battery prior to a measured battery voltage being at least at a pre-defined voltage based on the pre-defined battery parameters, in response to the occurrence, adjust an output voltage of the charging unit in order to compensate for the impedance at the electrical connectors while providing a pre-defined constant current charge to the at least one rechargeable battery; and wherein the mobile computing device comprises: a battery module configured to receive the at least one rechargeable battery; a device circuitry module configured to communicate between the battery module and the charging circuit; and further wherein, the mobile computing device is devoid of any charging circuit.