What can you do with the 8-16S Ventec BMS?

The 16S Ventec BMS is dedicated to eScooters, tricycles and small electric vehicles.

Ventec iBMS 16s - BMS 16s

Technical description

Cell’s management

  • Management of 2 batteries packs in parallel
  • Management of 8 to 16 serialized lithium elements compatible with all cells technology (NMC, LiFe, LiPo,…), +/- 5 mVolts of accuracy.
  • Management of 6 NTC temperature sensors:
    • 3 digital measures used by the software
    • 3 analogic measures used by the hardware redundancy

Protections

  • Hardware redundancy for voltage and temperature measurements in order to reach a hight level of safety (SIL2 of EN61508 standard)
  • Overcharge and undercharge, tunable by software
  • Overtemperature and undertemperature, tunable by software
  • Overcurrent: 2 levels in discharge, 1 level in charge tunable by software
  • Short circuit hardware protection (resettable, electronic fuse)

Balancing

  • Passive balancing with a 500 mA of bypass current per cell (with an external bypass board)

Power box

  • Bidirectional measure of the battery current by an external hall effect sensor
  • Charge and discharge management
  • External power box management up to 750 A:
    • Command of an external electromechanical contactor
    • Command of a precharge circuit (included on the board)

Smart functions

  • SOC and SOH estimation
  • Advanced self-diagnostic of the board
  • Communication by CAN bus 2.0B (can be opto-isolated)
    • Motor controller management by CAN bus
    • Charger management by CAN bus
  • Advanced supervision software

Power supply/consumption

  • Supply of the BMS directly on the battery pack
  • Low consumption in standby mode: < 500 µA

Mechanical Format

  • Dimensions: 90 x 172 mm

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