Skip to content

BMS Functions

The Prohelion 48V BMS provides several high-level functions, in order of priority:

  • Monitor: all voltages, temperatures and currents and act on the information to protect the battery pack against being operated outside acceptable safety limits.
  • Control: the load output using the pre-charge, enable-charge, and enable-discharge control circuitry.
  • Manage: the cells to keep them at equal State of Charge (SoC)
  • Report: telemetry to other systems to allow seamless integration with external load control and monitoring solutions.
  • Display: the status and State of Charge and information via the LEDs on the front-panel PCB.

The BMS performs these functions by measuring the following parameters:

  • 22 individual cell voltages
  • 8 individual cell temperatures
  • Total battery voltage
  • Total load voltage
  • Total load current

To achieve management over the cells and pack, it controls:

  • Precharge MOSFETs with external pre-charge resistor.
  • Charge enable MOSFETs.
  • Discharge enable MOSFETs.
  • Individual cell bypass (shunt) balance resistors.

Electrical Specifications

Specification Value
Max. Voltage 60V
Nominal Power 5kW
Max. Continuous Discharge Current 100A
Max. Continuous Charge Current 100A
Number of Cells Monitored 22 Cells
Max. Power Consumption 30mA
CAN Communication Yes
Supported Chemistries LiFePO4, Li-ion, LTO
Dimensions 115x215mm
Weight 200g
Opperating Temperature Range -20°C to +80°C
Maximum Balance Current 666mA
Cell Voltage Sense Accuracy 0.6mV
Number of External Temperature Sensors 8
Fused Cell Sense Yes
Reverse Polarity Protection Yes
Part Number PHLN-3000-0175