Battery Management System
Accurate SOC (State of Charge) and SOH (State of Health) estimation.
Onboard sensors for voltage, current & temperature.
Onboard protection devices (MOSFETS) for battery disconnect with auto cutoff are provided.
External protection device actuation signals like contactors, fans, etc. are provided.
Cloud bared data monitoring, logging possible.
Design can be perfected using virtual models for customer specific cells and requirements.
Making E-mobility Safer And Smarter

Electric vehicle safety is paramount, as any fire incident can be fatal to the rider and pose a danger to the surroundings. Varroc Engineering Ltd. has developed an advanced battery management system to ensure the safety of the battery at all times, enhancing vehicle safety and customer trust in electric transportation. Additionally, our system analyzes battery pack data to extract valuable parameters for user interfaces, mode tuning, vehicle control, and more, further improving electric vehicle reliability.

  • SOC (State of Charge) estimation error <2.5% Onboard monitoring and protection for
  • Cell balancing
  • Pre-charge
  • Overvoltage & undervoltage
  • Overcurrent
  • Overtemperature & undertemperature
  • Cell balancing current: 200mA/cell
  • Temperature measurement accuracy: ±1.2°C
  • Provision for temperature sensor NTC (Negative Temperature Coefficient): Up to 6 Sleep Current: ≤ 500 μΑ
  • Communication with other devices through CAN

  • Compatible pack: 48V, 60.3Ah, 3.03kWh.
  • Cells: 3.6V, 3Ah NMC cells.
  • BMS operating Voltage Range: OV to 85V
  • Normal operating voltage: 48V DC (Direct Current)
  • Operating Temperature -40°C to +60°C
  • Cell voltage measurement accuracy: ± 2mV
  • Current measurement accuracy: 1%"