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Indicator of remaining energy in storage cell of implantable medical device

  • US 20050007073A1
  • Filed: 07/11/2003
  • Published: 01/13/2005
  • Est. Priority Date: 07/11/2003
  • Status: Active Grant
First Claim
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1. A method comprising:

  • drawing a substantially constant first current pulse from an energy storage cell during a first time period between a starting time and an ending time;

    measuring a first change of a terminal voltage across the cell during the first time period; and

    comparing the measured first change to first stored data to determine the energy remaining in the cell.

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