Following extensive mechanical repairs, the battery was found to be gassing and running excessively hot, even after several hours of shutdown.

The battery was gassing and remained excessively hot even after extended periods of shutdown. The vehicle had a history of long-term storage and had required significant mechanical repairs including suspension, body panels, windows, and lighting. Fault code P0606 (Internal Control Module Main Processor) was present but was not considered a priority as the engine was otherwise running well. Initial investigation focused on the charging system.