What is aging processes in battery? All Questions › Category: Battery Management System › What is aging processes in battery? 0 Vote Up Vote Down chetan shidling asked 4 years ago I need short information. 1 Answers 0 Vote Up Vote Down chetan shidling answered 4 years ago The cell performance gradually deteriorates by due to physical changes, unwanted chemical reactions to the active chemicals. This aging process is irreversible and eventually results in failure of cell.