Method and circuit for determining battery capacity

Details Method and circuit for determining battery capacity Method and circuit for determining battery capacity

1980-12-18

1983-11-01

Pellinen, A. D.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 14, 324427, 324435, G01R 3136

Patent

active

044132212

ABSTRACT:
The capacity of a battery is determined while charging the battery by measuring the time it takes the battery voltage to decrease to a selected voltage level during discharging intervals interspersed between charging intervals. The state-of-charge is also determined by measuring the voltage level during a discharge interval while monitoring the duration of the charge cycle. Additionally, faulty cells of the battery are detected by measuring the voltage of the individual cells at the end of a discharging interval during the charging of the battery.

REFERENCES:
patent: 3898548 (1975-08-01), Perelle et al.
patent: 4027231 (1977-05-01), Lohrmann
patent: 4080560 (1978-03-01), Abert
patent: 4140958 (1979-02-01), Groeschel
patent: 4234840 (1980-11-01), Konrad et al.
patent: 4295097 (1981-10-01), Thompson et al.
patent: 4302714 (1981-11-01), Yefsky
patent: 4321541 (1982-03-01), Nishizuka

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