Battery Management System 14s Ventec

Technical description:

Cell’s management

  • Management of 14 lithium cells in series
  • Compatible with all cell technologies (NMC, LiFe, LiPo,…) +/- 5 mV accuracy.
  • Management of 3 NTC temperature sensors

Protections

  • Overcurrent software protection:
    • several configurable levels in charge and discharge
  • Overdischarge, overcharge, overtemperature protection
  • Short circuit hardware protection (electronic fuse):
    • 110 A during 100 µs

Balancing

  • Passive balancing with a 150 mA of bypass current

Power box

  • Integrated power box with MOSFET technolgy:
    • 53 A continuous current
    • 100 A maximum peak current (500 ms)
  • Bidirectional current measurement
  • Charge and discharge management
  • Command of a precharge circuit (included on the BMS)

Smart functions

  • SOC and SOH calculation
  • Possibility to connect 2 external LEDs to have a visual HMI
  • Wake up using a switch or a press button
  • Automatic BMS wake up on detection of the charger connection
  • External communication via CAN bus 2.0B
  • Auto diagnostic of the BMS

Power supply/consumption

  • Supply of the BMS directly on the battery pack
  • Very low consumption in deep sleep mode : < 5 µA

Mechanical Format

  • 280 mm x 65 mm

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