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Battery pack having theft deterrent circuit

  • US 5,594,319 A
  • Filed: 06/05/1996
  • Issued: 01/14/1997
  • Est. Priority Date: 06/05/1996
  • Status: Expired due to Fees
First Claim
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1. A battery pack, for use with a host device, having a battery current discharge prevention circuit, said battery pack comprising:

  • at least one battery cell;

    a switch coupled in series with said host device and said at least one battery cell;

    memory for storing a password;

    means for comparing a data word received from said host device with said password; and

    means for controlling said switch, and said switch being opened upon a predetermined number of occurrences of said data word differing from said password.

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