Orion BMS 2 – 84 Cell


The Orion BMS 2 is an excellent choice for an EV Conversion Battery Management System.  With rock-solid support and proven results, this is the battery management system we bundle with our conversion kits.

Includes everything you need to get started:

  • Orion BMS 2
  • IO Harness
  • Cell tap harness – 12 ft
  • Thermistor/Current sensor harness – 12 ft
  • Current sensor – 750A
  • CANdapter

If you are uncertain which model you need, contact us or download the Purchasing Guide below.

Quick Specifications:

  • Capable of measuring up to 180 battery cells per unit connected in series based on configuration.
  • Up to 2x Remote Cell Tap Expansion Modules can be connected to measure higher voltage battery packs (up to 800vDC max).
  • Configurations available in increments of 12 cells in series.
  • Centralized design provides high EMI and noise immunity.
  • Performs intelligent cell balancing (passive).
  • Calculates state of charge (SOC).
  • Uses professional automotive-grade locking connectors.
  • Calculates discharge current limit (DCL) and charge current limit (CCL).
  • Can measure cell voltages between 0.5v and 5.0v.
  • Dual (x2) CANBUS 2.0B interfaces which (fully programmable).
  • OBD2 diagnostic protocol support.
  • See the full features list


Additional information

Cell Tap Harness Length

6 ft, 12 ft