Electricity: measuring and testing – Electrolyte properties – Using a battery testing device
Patent
1998-09-24
2000-12-26
Brown, Glenn W.
Electricity: measuring and testing
Electrolyte properties
Using a battery testing device
324429, G01N 27416, G01R 3136
Patent
active
061665487
ABSTRACT:
A method of detecting battery capacity in a zinc-air battery. The method includes the steps of removing all non-essential loads from the battery for a first period of time, thereafter and for a second period of time, applying a constant load to the battery, periodically sampling the voltage of the battery, and, as a function thereof, determining whether a condition is satisfied during the second period of time, the satisfying of the condition indicating low battery capacity. The method of detecting battery capacity can also determine battery usage on a real-time basis in which an accumulator is loaded with a value representing an expected zinc-air battery capacity, loads on the battery are detected, and the accumulator is decremented based on the detected actual usage. The accumulator reaching a minimum value indicates that the battery capacity is low.
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patent: 4355277 (1982-10-01), Davis et al.
patent: 5111148 (1992-05-01), Senoo et al.
patent: 5182583 (1993-01-01), Horigome et al.
patent: 5191291 (1993-03-01), Taylor
patent: 5773977 (1998-06-01), Dougherty
Kurple Bill
Winzer Jochen
Brown Glenn W.
Timex Corporation
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