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Orion Jr 2 BMS
1-16 Cells-Batteries
USA Stock and Support
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Orion Jr 2 BMS<br>1-16 Cells-Batteries<br>USA Stock and Support
1-16 Cells/Batteries EV Orion BMS (Battery Management System) Orion BMS Jr Size
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1-16 Cells/Batteries

EV Orion Jr. 2 BMS (Battery Management System)

0.5-5v LiFePO4, LiNCM, LiMn2O2, LiFeMnPO4

Li-Ion, LiPo, LiFeYPO4, LiCoO2, LiMn2O4

Orion BMS Jr. Size

2-4 Day USA Shipping


Orion Jr. 2 User Manual

Orion Jr. 2 Spec Sheet

BMS Fundamentals Explained

Instructions for Paralleling Strings of Batteries

Get Started

Quantity Price
1+ $492.00
Price with Options:

(Discounts, if applicable, will show in the "Shopping Pallet")

Notice: The prices shown are for merchandise and do not include shipping. Shipping will be billed separately.

Prices shown may be changed without notice.

Orion Jr BMS EV Orion LiFePO4 LiMn2O2 LiFeMnPO4 Li-Ion LiPo LiFeYPO4 LiCoO2 LiMn2O4 1-16 Cells Batteries
Battery Chemistry, Single Cell Peak Voltage, Brand and Model? - Entry Required Enter it here:

CANbus Communication?
Cell Count? Number of Cells:

6ft/2m Cell-Tap Wiring Harness?
Main Connector I/O Wiring Harness?
Current Sensor Harness
Shunt Sensor Needed?
Tap Validation Tool?
Basic SOC Display?
SOC Display with Data Logging?
Connect Remote Monitoring System?
Thermistor Expansion Module (& No. of Thermistors) Needed?
Thermistor Expansion Module 6 ft. Wiring Harness (Up to 20 Thermistors)?
Stock/Production Option?
USA Stock/Production
Shipping Method? - Selection Required
If buying without batteries shipping costs $15
If buying with batteries shipping will be quoted separately
Delivery Date Needed? Enter it here:

Special Instructions? Enter them here:



·       2 digital signal outputs for controlling charge and discharge limiting mechanisms

·       1 digital signal output for controlling a battery charger

·       1 CANBUS 2.0B interface [optional] (both standard and extended IDs supported)

·       1 digital RS-232 interface for programming and diagnostics

·       3 multi-purpose outputs with software assignable functions

·       1 multi-purpose input with software assignable functions

·       3 analog 0-5v outputs that represent the following signals: Charge Current Limit (CCL), Discharge Current Limit (DCL), State of Charge (SOC).

·       3 thermistor inputs (additional monitoring possible with thermistor expansion module)


·       Centralized design allows for faster polling of data resulting in increased accuracy and resistance to EMI

·       No cell boards (all electronics are contained within the unit.)

·       Supports OBD2 protocol for storage of diagnostic trouble codes, freeze frame snapshots and polling of live data

·       PC software can be used to monitor battery performance, read and reset trouble codes, program battery profile information, and update settings

·       Accurate amp-hour and pack state of charge tracking (with correction based on cell open voltage)

·       Retains data when power is lost (no always-on power source needed)

·       Charger integration to allow for tapering of current during charge

·       Battery profile information and settings are field programmable via PC utility.

·       Internal resistance is measured for all individual cells

·       Pre-calculated charge and discharge current limits

·       Stores a snapshot of active data when faults occur for easy problem diagnosis.

Dimensions: 7.14 in (W) x 4.01 in (L) x 1.50 in (H)


Specification Item





Supply Voltage





Supply Current-Active





Operating Temperature





Digital Output Voltage (Open Drain)





Digital Output Sink Current (60v max—Rev B)





Analog Outputs Voltage





Cell Voltage Measurement Range





Cell Voltage Measurement Error (over 1-5v range)





Cell Balancing Current





Cell Voltage Reporting






Optional Specifications



CANBUS speed (on supported units)

125, 250, 500, or 1000 Kbps

Current Sensor Values

 200A,  500A, 800A and 1000A (all Hall Effect Sensors)


Tap Validation Tool:


This tool allows you to test the system once the system is hooked up. If the system is not hooked up properly and the Tap Validation Tool is not used it may damage your Orion BMS or Orion Jr 2.

Torque Digital Touch Display


Torque is an application for Android tablets and smartphones that interfaces with OBD2 enabled devices (via bluetooth or USB) and provides visual feedback in the form of gauges and digital readouts of the various parameters and values provided. Due to the flexible OBD2 support of the Orion BMS, Torque works cleanly with the Orion BMS out of the box and many Orion BMS customers use this display.


Disclaimer: Ewert Energy Systems and Electric Car Company of Utah are not affiliated with Torque in any way nor do they guarantee support for Torque.  Torque is copyrighted by its owners.  Please contact the authors of Torque directly for support regarding this software.


Notable Features:

  • Integrates seamlessly with the Orion BMS for displaying parameters and viewing & clearing error codes.
  • Powerful touch-enabled interface provides easy-to-use display.
  • Entire interface is customizable (gauge type, gauge location, gauge look and feel, etc).
  • Works on smartphones, tablets and other Android enabled devices (device MUST have USB host or Bluetooth capabilities depending on which adapter is used).
  • Can be used to do data logging as well as live web-based performance streaming.


Torque’s Official Website:

Torque’s Official Forum:


Required items to use Torque with the Orion BMS

1.   A Bluetooth Touch Screen Display (7 inch $197, 8 inch $238, 10 inch $287 all options come with a 2 year Warranty, Industrial Strength Velcro, 5v 1A Cig Socket Charger, and 120V 15A wall charger/plug).  Install your display in a location shaded from the sun for both longevity of use and screen readability.

2.   The Torque App from Google Play. ($4.95 download it here)

General connection diagram


One of the CAN interfaces on the Orion BMS must be connected to the OBD2 connector that the OBD2 to Bluetooth (or USB) adapter is plugged into.  A minimum of 5 wires must be connected to the OBD2 connector to operate:


OBD2 Pin #

Connect to

6 – CAN High

Orion BMS CAN1 or CAN2 High

14 – CAN Low

Orion BMS CAN1 or CAN2 Low

4 – Chassis Ground

12v Ground

5 – Signal Ground

12v Ground

16 – Battery Voltage

+12V (power for adapter)


Full OBD2 Connector Pinout:


The CAN network requires exactly 2 each 120 ohm termination resistors at each physical end of the CAN network.


Note: The baud-rate of the connected Orion BMS CANBUS interface must be either 250 Kbps or 500 Kbps to conform to OBD2 standards. This setting is available under “Communications Settings” in the BMS Profile section of the BMS utility.


Note: The OBD2 ECU ID may be changed from the default value if this ECU ID is integrated into a vehicle that already uses this ECU ID.  It is important that each ECU in the vehicle have a unique ECU ID.  This setting is available under “Communications Settings” in the BMS Profile section of the utility.


Configuring Torque

The adapter setup portion of Torque is dependent on what OBD2 adapter is being used. Please consult the official Torque documentation / support forum for assistance getting the adapter interface configured.

The next portion is adding the Orion BMS PIDs (viewable parameters such as battery voltage and current) to Torque. There are two different ways to do this.


Method 1 (Manual Entry – For Novice Users):

1.   Download the following PDF file: Orion BMS Torque Extended PIDs (PDF)

2.   Open Torque and go to “Settings” (usually by pressing the bottom left key [looks like an upside down box] on the phone / tablet and then selecting Settings).

3.   Scroll down in the settings list and click “Manage extra PIDs/Sensors”

4.   Press the Menu button again (looks like upside down box) and press “Add custom PID”

5.   Press “OK” to agree.

6.   Fill out the appropriate information from the List of OrionBMS Torque PIDs, starting with the first PID (or whichever ones are wanted / needed).

7.   Repeat steps 3 – 5 for all PIDs wanted / needed.

8.   Return to the Torque main screen by hitting the Back button (backwards arrow) several times.

9.   Press the “Realtime Information” button on the main screen to go to the gauges screen.

10. Long press (press and hold) any area on the screen to bring up a list of options about adding / editing existing gauges. When adding a gauge, the PIDs added manually should be selectable as options.

11. The gauges should be updating regularly at this point.


Method 2 (Automatic Entry – For Advanced Users):

Torque provides a secondary method for bulk loading multiple PIDs into memory by reading them in from a file.

1.   Download the following file to the Android device: Orion BMS Torque Extended PIDs (CSV)

2.   Install a File Manager application (Astro File Manager is commonly used).

3.   Open the File Manager and navigate to the home Torque folder (commonly this is ‘/mnt/sdcard/.torque’ OR ‘/.torque’.

4.   Copy the file downloaded above (“orionbms_pids.csv”) in to the ‘extendedpids’ folder (which should already exist).

5.   Exit the file manager and re-open Torque.

6.   Go to “Settings” and then scroll down to “Manage extra PIDs/Sensors”

7.   Press the Menu button on the device (looks like upside down box) and then press “Add predefined set”

8.   Select “orionbms_pids” to add them as a predefined PID list.

9.   Return to the Torque main screen by hitting the Back button (backwards arrow) several times.

10. Press the “Realtime Information” button on the main screen to go to the gauges screen.

11. Long press (press and hold) any area on the screen to bring up a list of options about adding / editing existing gauges. When adding a gauge, the PIDs added manually should be selectable as options.

12. The gauges should be updating regularly at this point.


Cell Tap Validator Tool

(Purchase $339)

(1 Week Rental $55)


§  Used to determine if the battery tap connectors are properly wired before connecting to the Orion BMS

§  Improperly wired connectors can cause permanent damage to the Orion BMS unit that is not covered by warranty

§  Available both for weekly rentals for single use applications as well as for purchase for OEMs that need the tool for use on an assembly line


There are 2 ways to get an exact quote for the base shipping for your Orion Jr 2 BMS EV Orion LiFePO4 LiNCM LiMn2O2 LiFeMnPO4 Li-Ion LiPo LiFeYPO4 LiCoO2 LiMn2O4 1-16 cells batteries order.

1. Contact us at (801) 566-5678 9am-5pm Monday-Friday or email [email protected] or go through our Contact Us page


2. Place your order by clicking in the shopping pallet “Proceed To Checkout”

a. Enter your information so we can get you a shipping quote

b. Select the “Shipping Method” of preference

c. Confirm the “Choose one payment method” has “Shipping Quote Request” selected

d. Click the “Check Out” button

e. You’ll receive a confirmation email of your request, as will we

We’ll research the exact shipping cost and send you an invoice to your PayPal or email or you can add it to your pallet in $1 Shipping Increments for your Orion Jr 2 BMS EV Orion LiFePO4 LiNCM LiMn2O2 LiFeMnPO4 Li-Ion LiPo LiFeYPO4 LiCoO2 LiMn2O4 1-16 cells batteries order.

Quantity discounts show in the “Shopping Pallet”.

We love to meet or beat any competitor’s price!

Higher volume discounts, price matching or questions?

Contact Carl, our resident specialist.

9am-9pm Mon-Sat MDT

(801) 566-5678

or email

[email protected]


[email protected]

or through our Contact Us page

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