CAPACITY DEGRADATION IN A LEAD ACID BATTERY METHOD AND APPARATUS

摘要

In accordance with the invention, there is a battery defect detection method comprising applying a current ramp to a battery (750), determining a first time (t₁) when a current of the battery (750) reaches a maximum current (I_peak), and determining a second time (t₂) when a terminal voltage of the battery (750) reaches a maximum voltage (V_peak)- The method also includes determining a differential (d), wherein (d) = /(t₁) - (t₂)/, and wherein (d) corresponds to a magnitude of defects in the battery (750).