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Battery charging method

  • US 6,281,663 B1
  • Filed: 11/13/2000
  • Issued: 08/28/2001
  • Est. Priority Date: 11/11/1999
  • Status: Expired due to Term
First Claim
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1. A method for charging a battery, comprising the steps of:

  • detecting a battery temperature at the start of the charging;

    setting a value of an upper limit of the battery temperature during charging;

    determining a maximum value for a battery charge current such that said battery temperature during charging does not exceed said value of the upper limit of the battery temperature, based on said battery temperature at the start of the charging and characteristics of battery temperature increase caused by charge current; and

    charging said battery based on said maximum value for the battery charge current.

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