PROCESS OF MANAGING AN ELECTROCHEMICAL BATTERY AND SYSTEM FOR MANAGING AN ELECTROCHEMICAL BATTERY

A process of managing an electrochemical battery (10) comprising measuring at least one first internal resistance (RHF(t)) of the battery at at least a first frequency (f1) and comparing the measured first internal resistance (RHF(t)) with a first reference internal resistance (RHF,REF); if the first measured internal resistance is less than or equal to the first reference internal resistance, making a decision regarding continued use of the battery; and otherwise measuring at least one second internal resistance (RLF(t)) of the battery at least one second frequency (f2) lower than the first frequency and comparing a difference D(t) between the measured second and first internal resistances with a reference difference (DREF) between a second and the first reference internal resistances (RLF,REF, RHF,REF); and if the difference D(t) is greater than or equal to the reference difference, making a decision regarding a disqualification of the battery (10); and otherwise reducing an intensity of a fast charge and/or regeneration current for a subsequent charging step.