Patent attributes
A rechargeable battery pack includes a rechargeable battery, electrical circuitry, and an inductive coil for wirelessly transmitting power to an electronic device. The rechargeable battery pack further includes a first set of electrical contacts to interface with electrical contacts of a charging base. The rechargeable battery pack is programmed to transmit a first data communication including a first identification code to the charging base through the first set of electrical contacts and receive first electrical power from the charging base if the identification code is verified. The rechargeable battery pack includes a second set of electrical contacts positioned on a top surface of the rechargeable battery pack for providing second electrical power to a second instance of the rechargeable battery pack. The second electrical power provided to the second instance of the rechargeable battery pack is a portion of the first electrical power received from the charging base.
