Patent ID: 6310481
Filing Date: 2001-10-30
Classification: G01R,H01M,Y02E

Abstract:
An apparatus for measuring condition of a storage battery, comprising:a first connector adapted to connect to a positive terminal of the storage battery;a second connector adapted to connect to a negative terminal of the battery;an analog to digital converter coupled to the first and second connectors adapted to amplify a signal from the battery developed between the positive terminal of the battery and the negative terminal of the battery and responsively provide a digital output;a memory storing a calibration value, the calibration value related to lumped sum non-linearities in the apparatus; anda microprocessor coupled to the analog to digital converter adapted to measure condition of the storage battery in response to the digital output, and wherein the measurement is a function of the calibration value whereby the calibration value is used to reduce offsets in the measurement due to lumped sum non-linearities.