US Patent 10056766 System for charging multiple devices

A system. The system includes a housing, an input port, a plurality of connection ports and circuitry. The input port is surrounded by the housing. The plurality of connection ports are surrounded by the housing. The circuitry is positioned within the housing and is electrically connected to the input port and each of the plurality of connection ports. The circuitry is configured to, for each connection port, supply about 5 volts of electric potential to the connection port, supply optimal amperes of current to an electrical device connected to the connection port, and provide protection from at least one fault condition. The optimal amperes of current is specific to the electrical device.