×

Battery charging apparatus

  • US 5,982,152 A
  • Filed: 04/10/1998
  • Issued: 11/09/1999
  • Est. Priority Date: 04/14/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. A battery charging apparatus comprising:

  • a battery;

    a battery charger for charging said battery;

    battery temperature detecting means for detecting a temperature of said battery in a charging mode;

    battery remaining-capacity detecting means for detecting a present remaining capacity of said battery in said charging mode; and

    charging control means for controlling charging of said battery with said battery charger;

    said charging control means including;

    charging efficiency detecting means including means for detecting a charging efficiency based on the temperature of said battery detected by said battery temperature detecting means and the present remaining capacity of said battery detected by said battery remaining-capacity detecting means; and

    charging stopping means for stopping charging of said battery with said battery charger when said charging efficiency detected by said charging efficiency detecting means is lower than a predetermined value.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×