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Usage counter for portable jump-starting battery unit

  • US 6,252,378 B1
  • Filed: 06/19/2000
  • Issued: 06/26/2001
  • Est. Priority Date: 01/10/2000
  • Status: Expired due to Fees
First Claim
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1. Apparatus for determining the cycle life of a battery in terms of usage cycles, comprising:

  • a reference circuit adapted to be coupled to the battery and establishing a reference voltage level, a usage cycle detection circuit adapted to be coupled to the battery and to the reference circuit and generating a count signal in response to battery voltage dropping below the reference voltage level, and a counter circuit coupled to the detection circuit for counting the number of count signals generated.

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