A device, system and method for charging a battery are provided. The device comprises: a USB (Universal Serial Bus) port; a battery in communication with the USB port; and, circuitry in communication with the USB port and the battery, the circuitry configured to: transmit a power control signal over the USB port, the power control signal comprising data indicative of one or more of a power, a voltage and a current to be received over the USB port to charge the battery; and, responsively receive the power for charging the battery over the USB port.