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Battery charger with automatic voltage detection

  • US 9,529,052 B2
  • Filed: 11/12/2014
  • Issued: 12/27/2016
  • Est. Priority Date: 07/16/2009
  • Status: Active Grant
First Claim
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1. A battery system comprising:

  • an automatic voltage detection system for automatically determining a nominal voltage of a battery connected across a pair of terminals by measuring a first voltage of the battery across the pair of terminals and, if the first voltage of the battery is less than a first predetermined value, determining whether the nominal voltage of the battery is 6 volts DC or 12 volts DC by measuring a second voltage across the pair of terminals and comparing the second voltage of the battery to a second predetermined value.

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