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Battery charger

  • US 6,329,790 B1
  • Filed: 01/28/2000
  • Issued: 12/11/2001
  • Est. Priority Date: 01/28/2000
  • Status: Expired due to Fees
First Claim
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1. A timed battery charger for processing a battery through a charging cycle, comprising:

  • a current source having an alternating current input and a direct current output for providing current at a single pre-determined level during the charging cycle;

    controls means for dividing the charging cycle into a plurality of successive, predetermined phases, each phase comprising a duty cycle wherein the charging current from the current source is delivered to an external battery terminal, alternated with a resting cycle during which the charging current is not delivered to the external terminal of the battery;

    further comprising a timer for determining the duration of the charging cycle;

    wherein said timer is set to control the duration of the charging cycle for;

    D type batteries at about 20 minutes;

    C type batteries at about 15 minutes;

    AA type batteries at about 10 minutes; and

    AAA type batteries at about 3 minutes.

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