State of charge indicator

Details State of charge indicator State of charge indicator

G - Physics

01

R

320/12, 324/24

G01R 31/36 (2006.01)

Patent

CA 1196379

ABSTRACT OF THE DISCLOSURE A method and apparatus for producing a visual signal of the state of charge of a battery selectively connected and dis- connected from an external load. A test load is connected to the battery for a predetermined period of time to draw a current pulse from the battery when the battery is disconnected from the ex- ternal load. Simultaneously, the voltage of the battery is measured. The measured voltage is converted to a digital signal, and the digital signal is transmitted to a storage means. The stored signal is then transmitted to a visual display device.

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