14s-bms-powersafe

Technical description:

Gestion des cellules

  • Management of 14 lithium cells in series, compatible with all cell technologies (NMC, LiFe, LiPo…)
  • Management of 3 NTC temperature sensors
  • Measurements accuracy:
    • Cell voltages: +/- 5 mV
    • Temperatures: +/- 1°C

Protections

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

Balancing

  • Passive balancing with 150 mA of bypass current

Power box

  • Integrated power box with MOSFET technolgy:
    • 53 A continuous current in discharge
    • 100 A maximum peak current (500 ms) in discharge
    • 26 A continuous current in charge
  • Bidirectional current measurement
  • Charge and discharge management
  • Precharge circuit included on the BMS

Fonctions intelligentes

  • SOC and SOH calculation
  • Possibility to connect 2 external LEDs to have a visual HMI
  • Wake up using a switch
  • Automatic BMS wake up on detection of the charger connection
  • External communication via CAN bus 2.0B
  • Auto diagnostic of the BMS
  • Black box integrated with defaults history storage and life counters
  • Possibility to connect up to 10 packs in parallel
  • Hot swap technology

Power supply/consumption

  • Supply of the BMS directly on the battery pack
  • Very low consumption in deep sleep mode: < 50 µA

Mechanical format

  • 280 mm x 65 mm x 17 mm