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Rapid charging and power management of a battery-powered fluid analyte meter

  • US 8,441,363 B2
  • Filed: 03/30/2012
  • Issued: 05/14/2013
  • Est. Priority Date: 12/10/2007
  • Status: Active Grant
First Claim
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1. A battery-powered meter adapted to determine an analyte concentration of a fluid sample, the meter comprising:

  • a housing defining an area for receiving a rechargeable battery and a port sized for receiving at least a portion of a test sensor;

    a temperature sensor disposed within said housing; and

    one or more processors disposed within said housing, at least one of said one or more processors configured to implement a rapid charge process associated with said rechargeable battery, said process comprising the acts of;

    (i) monitoring for a connection to an external power source; and

    (ii) in response to receiving identifying information of said connection to said external power source, implementing a charge routine for rapid charging of said battery at a first charge current until a threshold temperature value determined using said temperature sensor is exceeded and thereafter charging said battery at a second charge current that is lower than said first charge current,wherein implementation of said charge routine causes a negligible temperature rise in said rechargeable battery due to said first and second charge currents, thereby limiting temperature effects in determining fluid analyte concentrations.

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