Method for monitoring battery discharge by determining the secon

Details Method for monitoring battery discharge by determining the secon Method for monitoring battery discharge by determining the secon

1992-02-03

1994-01-11

Strecker, Gerard R.

Electricity: measuring and testing

Electrolyte properties

Using a battery testing device

324426, 320 48, 340636, G01N 27416, H02J 704

Patent

active

052785092

ABSTRACT:
The state of charge of a rechargeable battery (12), such as those made from lithium, nickel-cadmium or metal hydrides, can be accurately determined by monitoring the rate of change of battery voltage over time (dv/dt), which parameter has empirically been found to change dramatically as the battery reaches complete discharge.

REFERENCES:
patent: 4741979 (1988-05-01), Faust et al.
patent: 4804595 (1989-02-01), Bakos et al.
patent: 5027294 (1991-06-01), Fakruddin et al.
patent: 5166623 (1992-11-01), Ganio
"Energy-Management Chip Supplements PC Power-Control ICs, " D. Bursky, Electronic Design News, Jun. 27, 1991, pp. 125-129.
"New Batteries and Support Components Widen Prototype Designer's Options, " Electrical Engineering Product News, May 1991, pp. 38-39.

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