MG Master HV – Battery Management Controller HV 800V – 500

Part No: MGMHV800500
Supply Voltage: 24 VDC
(18 VDC to 32 VDC)
Maximum HV current continuous: 500 A
Weight: 9.9Kg
Dimensions: 430 x 329 x 121 mm


MG Energy Monitor Battery system monitoring HV 800V – 500 MGMHV800500

The MG Master HV is the safety and control unit of the battery system. It protects the connected battery modules against overcharging, over-discharging, over- and under-temperature, and controls the balancing of the battery cells. The system works stand-alone and requires no user interactions during normal operation.

If, however, user input is required, e.g. during an error, a warning is raised. Actions required depending on the type of warning.


  • Integrated pre-charge circuit;
  • Safety contactors in positive and negative power paths;
  • High-Voltage Interlock Loop (HVIL);
  • Internal event logging;
  • CAN-Bus communication;
  • State-Of-Health and State-Of-Charge tracking;
  • Monitoring of all battery parameters (cell voltage, temperatures, balancing);

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