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Charging apparatus with contact end sliding in accordance with weight of secondary battery

  • US 5,831,414 A
  • Filed: 06/27/1997
  • Issued: 11/03/1998
  • Est. Priority Date: 07/05/1996
  • Status: Expired due to Fees
First Claim
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1. A charging apparatus comprising:

  • a case;

    a constant current circuit having a plurality of output terminals for supplying charging current with a plurality of different current values, respectively;

    a plurality of contact pads respectively connected to said output terminals of said constant current circuit; and

    a conductive elastic lead having one of ends which slides in response to installation of a secondary battery in said case to contact one of the plurality of contact pads, wherein a portion of said conductive elastic lead is connected to said secondary battery to supply the charging current from said constant current circuit to said secondary battery via the contacting one of the plurality of contact pads.

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