Container B is not cooling enough; rack 4 sits nearest the return duct.
Schedule an HVAC check this week. Rack 4 stays the warmest rack in the container until airflow is fixed.
- Container B air temperature 4 °C above container A72 h
- Rack 4 max cell temp +6.1 °C vs siblingsnow
- Rack 4 cell voltage spread within limitsno cell defect

