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Battery charger having a plurallty of channels

  • US 20020167295A1
  • Filed: 03/28/2002
  • Published: 11/14/2002
  • Est. Priority Date: 03/29/2001
  • Status: Active Grant
First Claim
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1. A battery charger having a plurality of channels for charging a plurality of rechargeable batteries attached in a detachable fashion comprising:

  • (a) temperature sensors for detecting temperature of batteries to be charged, the number of which is less than the total number of the batteries to be attached;

    (b) a plurality of attachment detectors for respectively and independently detecting the presence of the batteries; and

    (c) a control circuit comparing the temperature detected by the temperature sensors and charging stop temperature and stopping charging when the detected temperature becomes greater than the charging stop temperature, and varies the charging stop temperature for stopping charging in accordance with battery attachment positions detected by each attachment detector.

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