TRANSPORT REFRIGERATION UNIT

A power supply unit () provided with a transport refrigeration unit () includes an insulated battery box (), a heat exchanger (), and a battery (). The heat exchanger () is disposed within the insulated battery box (). The heat exchanger () has a heat exchanger inlet () that is fluidly connected to a compressor outlet () and a heat exchanger outlet () that is fluidly connected to a refrigeration unit heat exchanger inlet (). The battery () is disposed within the insulated battery box ().