(FR2783636-A1)   NOVELTY - The method involves measuring the ripple voltage present in the battery supply line when the engine is running, comparing the ripple voltage to a range of preset reference characteristic acceptable values, determined by an allowable extent of battery deterioration before issuing a signal or by a nominal setting that best fits the motor vehicle, and lastly providing an indication when the ripple voltage exceeds a range of preset values.    USE - For monitoring condition of liquid electrolyte level, level of positive and negative plate deterioration and terminal contact condition of motor vehicle battery.    ADVANTAGE - Monitoring process does not degrade battery.    (JP2000098008-A)   NOVELTY - The method involves measuring the ripple voltage present in the battery supply line when the engine is running, comparing the ripple voltage to a range of preset reference characteristic acceptable values, determined by an allowable extent of battery deterioration before issuing a signal or by a nominal setting that best fits the motor vehicle, and lastly providing an indication when the ripple voltage exceeds a range of preset values.    USE - For monitoring condition of liquid electrolyte level, level of positive and negative plate deterioration and terminal contact condition of motor vehicle battery.    ADVANTAGE - Monitoring process does not degrade battery.    (DE19944517-A1)   NOVELTY - The method involves measuring the ripple voltage present in the battery supply line when the engine is running, comparing the ripple voltage to a range of preset reference characteristic acceptable values, determined by an allowable extent of battery deterioration before issuing a signal or by a nominal setting that best fits the motor vehicle, and lastly providing an indication when the ripple voltage exceeds a range of preset values.    USE - For monitoring condition of liquid electrolyte level, level of positive and negative plate deterioration and terminal contact condition of motor vehicle battery.    ADVANTAGE - Monitoring process does not degrade battery.    (CN1252526-A)   NOVELTY - The method involves measuring the ripple voltage present in the battery supply line when the engine is running, comparing the ripple voltage to a range of preset reference characteristic acceptable values, determined by an allowable extent of battery deterioration before issuing a signal or by a nominal setting that best fits the motor vehicle, and lastly providing an indication when the ripple voltage exceeds a range of preset values.    USE - For monitoring condition of liquid electrolyte level, level of positive and negative plate deterioration and terminal contact condition of motor vehicle battery.    ADVANTAGE - Monitoring process does not degrade battery.    (US6275161-B1)   NOVELTY - The method involves measuring the ripple voltage present in the battery supply line when the engine is running, comparing the ripple voltage to a range of preset reference characteristic acceptable values, determined by an allowable extent of battery deterioration before issuing a signal or by a nominal setting that best fits the motor vehicle, and lastly providing an indication when the ripple voltage exceeds a range of preset values.    USE - For monitoring condition of liquid electrolyte level, level of positive and negative plate deterioration and terminal contact condition of motor vehicle battery.    ADVANTAGE - Monitoring process does not degrade battery.