Rechargeable vehicle thermal management charging system

A method comprising:

• electrically connecting an external power source to a rechargeable electric vehicle comprising an interior and exterior, the interior comprising a rechargeable energy storage unit in electrical communication with one or more electric motors to propel the electric vehicle and a receptacle to receive electrical energy to recharge the energy storage unit, and a first thermal management unit to control an operating temperature of the energy storage unit, wherein the external power source, after electrical connection, is in electrical communication, by the receptacle, with the energy storage unit;
• and
• during charging of the energy storage unit by the external power source, passing, by a second thermal management unit located outside the rechargeable electric vehicle exterior and in fluid communication with the energy storage unit, a thermal management fluid through at least part of the energy storage unit to control the energy storage unit temperature, wherein the thermal management fluid passes through at least part of the first thermal management unit or a thermal management fluid recycle loop in fluid communication with the first thermal management unit;
• wherein a microprocessor isolates the first thermal management unit from flow of the thermal management fluid by closing one or more valves in fluid communication with the recycle loop, and wherein, in a first operating mode, the thermal management fluid is cooled by the first but not the second thermal management unit and, in a different second operating mode, the thermal management fluid is cooled by the second but not the first thermal management unit.