US Patent 11485251 Vehicle-based charging system for electric vehicles

A vehicle is configured to charge other electric vehicles. The vehicle includes a battery with a number of battery cells, the battery being configured to output direct current at a first voltage. The vehicle also includes a direct current voltage converter configured to convert direct current received from the battery to a second voltage and an electrical connector in electrical communication with the direct current voltage converter, the electrical connector being configured to supply direct current at the second voltage from the direct current voltage converter to an electric vehicle. The vehicle further includes a control system configured to determine a charging voltage of an electric vehicle, and operate the direct current voltage converter to output direct current at a second voltage corresponding to the charging voltage of the electric vehicle, and a thermal management system configured to maintain the battery within a selected temperature range.