Connect Your Lithiumate Pro to an Android Device with an OBDII Connector Set

Monitoring your Lithiumate Pro battery management system (BMS) is crucial for optimal performance and longevity. This guide outlines how to connect your Lithiumate Pro to an Android device using an OBDII connector set and the Torque app, enabling real-time wireless monitoring of vital battery parameters.

Building Your OBDII to Lithiumate Pro Adapter

The core of this setup lies in creating a custom adapter. This involves connecting an OBDII connector to your Lithiumate Pro’s control connector using specific wiring. Follow this table for accurate connections:

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This diagram visually represents the wiring connections, ensuring a clear understanding of the process. Accurate wiring is paramount for a successful connection.

Configuring the Torque App for Lithiumate Pro

After building the adapter, you’ll need to configure the Torque app on your Android device. Here’s a step-by-step guide:

1. Download and Install: Download and install the Pro version of the Torque app from the Google Play Store.
2. Download Predefined PID Set: Download the predefined PID (Parameter ID) set specifically designed for the Lithiumate Pro. Place this file in the “Torque extended PIDs” folder on your Android device. This set allows Torque to interpret the data transmitted by the Lithiumate Pro.
3. Launch Torque: Open the Torque app on your Android device.
4. Load PID Set: Navigate to Menu > Settings > Manage extra PIDs/Sensors > Menu > Add predefined set and select the Lithiumate Pro PID set you downloaded.
5. Select OBD2 Protocol: In the Vehicle Profile settings, choose ISO 15765-4 CAN (11bit 500k baud) as the OBD2 protocol. This ensures compatibility with the Lithiumate Pro’s communication standard.
6. Connect Adapter: Connect the OBDII adapter you built to the Lithiumate Pro’s CAN bus.
7. Bluetooth Connection: Connect a Bluetooth OBDII adapter to the OBDII connector on your custom adapter. Ensure your Android device is paired with the Bluetooth adapter.
8. Power On: Turn on both the Bluetooth adapter and the Lithiumate Pro BMS.

To ensure communication between Torque and the Lithiumate Pro:

1. Enable communication within the Torque app settings.
2. Ensure the CAN termination resistor is enabled (“YES”) on the Lithiumate Pro BMS controller. This maintains signal integrity on the CAN bus.

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Customizing Torque with Elithion PIDs

For advanced users, the Torque app offers customization options. You can add specific Elithion PIDs to monitor additional parameters:

1. Download PID Table: Download the Elithion Lithiumate Pro PID table, which provides a comprehensive list of available parameters.
2. Find PID Details: Locate the desired PID in the table and note its details, including the formula for unit conversion.
3. Convert Units: If necessary, convert the Pro’s units to your preferred units using the provided formula. For instance, to convert Minimum Voltage from millivolts to volts, use the formula: Minimum Voltage [V] = 0.010 * A + 2, where ‘A’ represents the raw value.
4. Define Display Range: Set the desired display range for the parameter (e.g., -300A to 300A for Pack Current).
5. Note CAN ID: Identify the CAN ID (header), such as “7E0.”
6. Combine Information: Combine all the gathered information into a single string, following the format: "Pack Current","Current","106800","0.1*(SIGNED(A)*256+B)","-300","300","A","7E0". This string defines how Torque will display the parameter.
7. Add Custom PID: In Torque, navigate to Menu > Settings > Manage extra PIDs/Sensors > Menu > Add Custom PID and enter the custom PID string.

By following these instructions, you can leverage an Obdii Connector Set Lithiumate to effectively monitor your Lithiumate Pro BMS using an Android device and the Torque app. This provides valuable insights into your battery system’s health and performance.