Electricity: measuring and testing – Electrolyte properties – Using a battery testing device
Patent
1998-09-15
2000-07-25
Ballato, Josie
Electricity: measuring and testing
Electrolyte properties
Using a battery testing device
324433, G01N 2746
Patent
active
060940514
ABSTRACT:
The invention provides for a timesaving method of determining whether a nickel cadmium (NiCd) battery is stricken with memory effect. A fully charged NiCd battery under test ("test battery") 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 maximum measured terminal voltage of the test battery is compared to the measured terminal voltage of a NiCd battery of the same nominal voltage and capacity and known not to have memory effect ("normal"battery). A NiCd battery is determined to have memory effect if the maximum voltage of the test battery exceeds the maximum voltage of the normal battery.
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patent: 4560937 (1985-12-01), Finge
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Palanisamy Thirumalai G.
Patel Alpesh
Rudai Patrick M.
Singh Harmohan
Allied-Signal Inc.
Ballato Josie
Nguyen Vincent Q.
Yeadon Loria B.
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