Apparatus and method for protecting a battery from overdischarge
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United States of America Patent
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May 3, 2005
Grant Date -
Jul 22, 2004
app pub date -
Jan 22, 2003
filing date -
Jan 22, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A battery discharge indicator for protecting a storage battery is provided. The battery discharge indicator includes a positive connector that can couple to a positive terminal of the battery and a negative connector that can couple to a negative terminal of the battery. Also included, is a voltage sensor that couples to the battery via the positive connector and the negative connector and senses a battery terminal voltage. A microprocessor, coupled to the voltage sensor, provides a first alarm signal if a magnitude of the battery terminal voltage is below a first threshold for a first interval of time and if the magnitude of the battery terminal voltage is below a second threshold for a second interval of time.
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