AUTOMATIC BATTERY CHARGER CIRCUIT

摘要

A battery charger circuit uniquely applicable to those batteries having no change in any measurable physical constant as a function of their state of charge. It includes means for starting a charge and maintaining the charging current until the battery voltage has charged to a predetermined level and the charging current has dropped below a predetermined rate. Safety features relating to charging time, liquid level and excessive charging voltage are included to prevent the battery from charging under unsafe conditions.