03971980 is referenced by 60 patents and cites 2 patents.

Apparatus for indicating the charge condition of a secondary cell, comprising an integrating device which progressively sums the ampere-hours drawn from the cell, and a computer which is programmed to provide a voltage output whose magnitude indicates the total number of ampere-hours available, from the battery at the particular discharge current and temperature. A comparator subtracts from this a voltage derived in accordance with the output of the integrating device. The comparator output thus indicates the remaining ampere-hours available to be drawn from the cell at the prevailing conditions of discharge current and temperature. There may be provided a further computer which is programmed in accordance with the variation in minimum ampere-hour requirement of the cell to ensure that a particular load, e.g. a starting motor, can be successfully operated at various temperatures. This comparator can be arranged so as to provide an indication as to whether or not the charge condition of the cell is sufficient to operate this load.

Title
Battery testing apparatus
Application Number
5/535201
Publication Number
3971980
Application Date
December 20, 1974
Publication Date
July 27, 1976
Inventor
Richard Weber
Klagenfurt
OE
Dieter Kautschitsch
Feistritz
OE
Leopold Jungfer
Feistritz
OE
Agent
Ernest F Marmorek
Assignee
Firma Akkumulatorenfabrik Dr Leopold Jungfer
OE
IPC
G01N 27/42
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