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Rechargeable battery and method for its operation

  • US 8,049,464 B2
  • Filed: 03/08/2006
  • Issued: 11/01/2011
  • Est. Priority Date: 03/08/2005
  • Status: Expired due to Fees
First Claim
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1. A rechargeable battery for operation with an external voltage which is applied at least at times to the output of the rechargeable battery and is below the output voltage of the rechargeable battery when in its fully charged state, comprisingat least one chargeable electrochemical cell,an electrical connection to the output of the rechargeable-battery for inputting and/or outputting electrical energy,a housing which surrounds the at least one chargeable electrochemical cell, anda control circuit for controlling the charging process of the rechargeable battery and/or the production of the rechargeable-battery voltage at the output of the rechargeable battery, the control circuit being adapted to disconnect the rechargeable-battery voltage from the output of the rechargeable battery at cyclic time intervals in order to check whether the external voltage is applied to the output of the rechargeable battery.

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