Battery monitor

  • US 4,929,931 A
  • Filed: 12/22/1988
  • Issued: 05/29/1990
  • Est. Priority Date: 12/22/1988
  • Status: Expired due to Fees
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First Claim
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1. A battery monitor for monitoring the condition of a battery utilized within a system as the primary or auxiliary power source of said system, said battery monitor comprising:

  • voltage measuring means for measuring the voltage of said battery; and

    processor means coupled to said voltage measuring means for utilizing the voltage measurement of said voltage measuring means, said processor means being arranged to test said battery by determining responsive to said voltage measuring means, the presence or absence of said battery, whether the battery voltage is equal to or greater than a nominal voltage level, and the discharge rate of said battery, said processor means being adapted to compare said battery voltage to a first predetermined voltage level to determine the presence or absence of said battery, said processor means further being adapted to compare said battery voltage to a second predetermined voltage level to determine whether said battery voltage is equal to or greater than said nominal voltage.

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