Apparatus for indicating remaining battery capacity
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United States of America Patent
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-
Dec 2, 1986
Grant Date -
N/A
app pub date -
May 25, 1984
filing date -
May 25, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
When the discharging of a battery is suspended, its open-circuit voltage or a voltage corresponding to the open-circuit voltage is detected, and with the voltage thus detected, as a start point an imaginary voltage curve having a certain decreasing rate is set for instance (by discharging a capacitor which has been charged by the voltage). When the discharging of the battery is suspended, the voltage detected at that time is used to correct the start point voltage of the imaginary voltage curve. According to the voltage obtained from the imaginary voltage curve, the number of LEDs turned on is changed or one of the LEDs is selected or liquid crystal display means is operated to display the remaining capacity of the battery.
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