DC-DC CONVERTER AND FRONT JUNCTION BOX DC-DC CONVERTER AND FRONT JUNCTION BOX High voltage is present at the DC-DC converter and front junction box, as outlined in red. The DC-DC converter transforms the high voltage current from the high voltage battery to low voltage to charge the Model S 12 volt battery. The front junction box provides high voltage current to various components, such as the battery heater, air conditioning compressor, and cabin heater. Use caution when cutting in this area during a dash lift and dash roll procedure. Use work-around techniques, if necessary. NOTE: The following image shows a Dual Motor vehicle. Vehicles without a front drive unit are similar. Electric Vehicle Components 7