BatName-FAIL: Wrong battery selection

The "BatName-FAIL" error implies that the inverter has detected a mismatch or inconsistency in the battery configuration or settings. This could indicate an issue with battery compatibility, communication, or settings.

Why it's problematic

This error can prevent the inverter from properly charging or discharging the batteries, affecting system performance and potentially causing damage.
It highlights a critical configuration problem that needs to be addressed to ensure safe and reliable operation.

Possible causes

Incorrect Battery Selection: The inverter's settings may not match the type or model of the connected batteries.
Battery Communication Issues: There might be a problem with the communication link between the inverter and the battery management system (BMS).
Conflicting Battery Settings: The battery settings in the inverter and the BMS might be inconsistent or conflicting.
Multiple Battery Types: The system may be attempting to use different types of batteries that are not compatible with each other.

Before you begin

Safety First: Working with electrical equipment always involves risks. Ensure you are qualified and follow appropriate safety precautions. Disconnect the inverter from both AC and DC sources before performing any physical inspection or adjustments.

Gather Information: Before starting troubleshooting, have the inverter manual on hand. You should also gather information about the inverter model and serial number, the installation date, and the PV array configuration (number of panels, capacity, and number of strings).

Troubleshooting steps

Verify Battery Compatibility: Consult the inverter's documentation and ensure that the connected batteries are compatible with the inverter model.
Check Battery Selection Settings: Access the inverter's settings menu and confirm that the correct battery type and model are selected.
Inspect Battery Communication Cables: Examine the communication cables between the inverter and the battery BMS for any signs of damage, loose connections, or incorrect wiring.
Verify Battery Settings: Compare the battery settings in the inverter with those in the BMS, ensuring they are consistent and do not conflict.
Check Battery Voltage: Use a multimeter to measure the battery voltage and compare it to the expected values for the connected battery type and state of charge.
Restart Inverter and BMS: Power cycle both the inverter and the battery BMS. This can often resolve minor communication or configuration issues.

Verifying the solution

The "Battery selection not the same" error should disappear once the battery configuration and communication issues are resolved. The inverter should recognize the batteries correctly, and the charging and discharging processes should function as expected.

If the problem is not resolved

If the error persists after following all the above steps, there might be an internal fault within the inverter, the battery, or the BMS.

As a system owner: In this case, contact the inverter installer or distributor for further assistance. You can find the details of your installer in the MyAutarco app.
As a certified installer: Contact Autarco Support; you can submit a support case via Helios.