Battery capacity monitor

Details Battery capacity monitor Battery capacity monitor

1990-09-14

1992-06-30

Harvey, Jack B.

Electricity: measuring and testing

Electrolyte properties

Using a battery testing device

324434, 324427, G01N 27416

Patent

active

051266750

ABSTRACT:
A simple and inexpensive battery capacity monitor which indicates the remaining capacity of a battery by indirect measurement of the equivalent internal resistance. The monitor momentarily applies an RC load across the battery terminals and indicates the peak capacitive charge which is indicative of the equivalent internal resistance, which in turn can be correlated to the remaining battery capacity.

REFERENCES:
patent: 4413221 (1983-11-01), Benjamin et al.
patent: 4626765 (1986-12-01), Tanaka

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