HV Battery Junction Box

The HV battery junction box brings together the measurement, control and connections of the battery high voltage (HV) system. Therefore, it would normally contain:

  • contactors
  • pre-charge resistor and contactors
  • fuses
  • current sensor
  • connectors

This often also includes the master BMS. Thus allowing the control and power distribution to be all housed in one central location.

In the Mercedes Vision EQXX you can see the HV Battery Junction Box on the top rear of the battery pack.

Leave a Comment