External BMS Disconnected — Communication lost with Battery Management System

What does 90 mean?

Communication has been interrupted between the charge controller and the battery's management system. This prevents proper battery monitoring and charging control.

• Communication has been lost with the Battery Management System of the battery.
• Loose or damaged Xanbus network connections to the battery.

Click steps to track your progress.

1. 1

   Check that the Xanbus network cables are securely connected to both the battery and the charge controller.

2. 2

   Inspect the Xanbus cables for any signs of damage.

3. 3

   Restart both the charge controller and the battery system.

4. 4

   If a connection problem cannot be found, contact the manufacturer of the Battery Management System.