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Method for charging determining life of and detecting state of charge of battery

  • US 6,583,606 B2
  • Filed: 05/29/2001
  • Issued: 06/24/2003
  • Est. Priority Date: 05/29/2000
  • Status: Expired due to Fees
First Claim
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1. A method for charging a lead battery, wherein:

  • a state of charge is controlled so as to be less than 100%; and

    when the lead battery has not been charged and discharged for a predetermined time, refresh charge is performed so that the state of charge becomes at least 90% or more.

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