Apparatus and method for determining the capacity of a nickel-ca

Electricity: battery or capacitor charging or discharging – Battery or cell discharging – With charging

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320149, H02J 700

Patent

active

059260084

ABSTRACT:
The invention provides for a timesaving method of determining the capacity of a nickel cadmium (NiCd). A fully charged NiCd battery under is subjected to a positive sloped current charge ramp and then a negative sloped current charge ramp while continuously monitoring the battery terminal voltage. The voltage is plotted and the maximum slope of the measured terminal voltage determines l.sub.gas. The value of I.sub.gas is compared to a temperature calibration curve to determine the capacity of the battery under test.

REFERENCES:
patent: 4392101 (1983-07-01), Saar et al.

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