1.Check that all communication cables between the batteries are correctly connected and verify that the communication ports are not damaged.

2.For T58 batteries, check whether the DIP switch settings are correct.

3.Observe the battery status lights and remove any battery with abnormal status lights from the system.

4.Measure the voltage of each battery individually. If any battery shows a voltage too low, use the inverter's forced charge or the T-BAT-Charger to recharge the battery.

5.Upgrade the firmware of all batteries to the latest version.

6. If the issue remains, provide the completed troubleshooting results to SolaX technical support team through video or images.Including but not limited to:
1) SN number of the inverter.
2)The front photo of the battery's communication port. If there are any abnormalities or damage, please take a photo.
3)If it's a T58 battery, take a photo of the DIP switch settings.
4)The flashing status of the status lights on all batteries.
5)The voltage measurement results for each battery.