Guide to Replacing a BMS-EX on-site

This guide details the necessary steps to replace a BMS-EX on-site while preserving the data and settings from the BMS to be replaced.

1. Logger software version is V9.129 or greater (update if necessary).
2. Old BMS must be EX series.
3. Old BMS must be online and visible on the logger.
4. Old BMS firmware version is 202 or greater. Update if necessary.
5. Copy the old BMS's serial number. General Info –> BMS Information –> Serial Number

1. The old BMS may now be removed from the battery, and the new BMS installed in its place.
2. Verify the BMS is securely installed and that all connectors are seated correctly.
3. After switching the new BMS on, it will start up and remain in an error state until the replacement process has been completed via the wizard. The CANBUS 1 interface on the new BMS should show activity (blinking green LEDs).

1. The old BMS may now be removed from the battery, and the new BMS installed in its place.
2. Navigate to MyPower24 → My Devices → Li-ion Storage EX Series.
3. Click on the orange service alert icon . (A)
4. A dialog box indicates that the logger has detected a replacement BMS. Click to continue. (B)
5. A second dialog box will open asking you to type in the serial number of the BMS that was replaced. Once populated, click Complete replacement . (C)
6. It may take up to a minute for the configuration file to be copied to the new BMS. Once the process is complete, a blue balloon will pop up confirming the operation was successful. The BMS will now appear online.

1. There is a blue info icon instead of a orange service alert icon, with message: Replacement BMS with invalid Production Flag Detected.