PULSE MODIFIED INVARIANT CURRENT BATTERY CHARGING METHOD AND APPARATUS

摘要

A lead acid battery having at least one electrolytic cell is charged by a method which effects lowering of the internal impedance of the battery plates and increase battery cycle life capacity. The method includes the steps of connecting a current source device across the positive and negative terminals of the battery and applying a periodic pulse to the device so as to apply a pulsed current across the battery terminals without applying a voltage pulse. The pulse current of square wave shape is applied onto a sinusoidal charging current at a higher frequency.