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Battery cartridge having a recess for detecting misuse and/or recessed terminals

  • US 5,415,947 A
  • Filed: 05/24/1993
  • Issued: 05/16/1995
  • Est. Priority Date: 05/29/1992
  • Status: Expired due to Term
First Claim
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1. A battery pack comprising:

  • a casing for housing batteries, said casing having an upper portion and a bottom portion;

    a plurality of electrodes formed in said bottom portion of said casing for electrical connection with said batteries, said electrodes functioning as charging electrodes when said battery pack is connected to a battery charger and said electrodes functioning as power supply electrodes when said battery pack is connected to an electrical apparatus; and

    a detection recess formed along a center line on a bottom surface of said bottom portion of said casing for detecting when said pack is positioned correctly in an appropriate battery charger or electrical apparatus, wherein columnar batteries are accommodated in said casing in two rows extending along opposite sides of said center line of said bottom surface and wherein said detection recess is formed along said center line in between said two rows.

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