Electricity: measuring and testing – Electrolyte properties – Using a battery testing device
Reexamination Certificate
2005-03-31
2008-12-30
Ullah, Akm E (Department: 2838)
Electricity: measuring and testing
Electrolyte properties
Using a battery testing device
C320S132000, C324S426000
Reexamination Certificate
active
07471090
ABSTRACT:
In accordance with various embodiments, there is a method for determining the capacity of a battery. Various embodiments include applying a predetermined current ramp to a fully charged lead-acid battery while measuring a battery terminal voltage. An Iupcan be determined, where the Iupis a transition from charging to overcharging. A specific gravity of the lead-acid battery can also be determined. The capacity of the lead-acid battery can then be determined from the Iupusing a correlation function that describes the relationship of the Iupto the capacity, where the correlation function depends on the specific gravity of the lead-acid battery.
REFERENCES:
patent: 4626765 (1986-12-01), Tanaka
patent: 5049803 (1991-09-01), Palanisamy
patent: 6618681 (2003-09-01), Hoenig
patent: 2002/0193953 (2002-12-01), Hoenig et al.
patent: 2005/0052158 (2005-03-01), Meissner
patent: 2005/0270033 (2005-12-01), Singh et al.
patent: 10208651 (2003-01-01), None
patent: 2004260905 (2003-12-01), None
patent: 03085772 (2003-10-01), None
W. H. Edwards, A. I. Harrison and T. M. Wolstenholme “Conductance measurements in relation to battery state of charge” from the proceeding of the Telecommunications Energy Conference, 1999, INTELEC '099, Section 18-3.
International Search Report dated Jul. 25, 2006.
Atehortua Hector M.
Hoenig Steven
Palanisamy Thirumalai G.
Singh Harmohan N.
Cagler, Esq. Oral
Honeywell International , Inc.
Ramadan Ramy
Ullah Akm E
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