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Storage battery unit

  • US 7,649,341 B2
  • Filed: 05/30/2007
  • Issued: 01/19/2010
  • Est. Priority Date: 11/30/2004
  • Status: Active Grant
First Claim
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1. A storage battery unit comprising:

  • a storage battery in which a generation element including a positive electrode and a negative electrode is housed in a battery jar and positive and negative output terminals are mounted to a lid of said battery jar; and

    a monitoring device that monitors a state of said storage battery using an output of said storage battery as an input,wherein a starting circuit is inserted between the output terminal of said storage battery and an input terminal of said monitoring device, andsaid starting circuit includes a main switch that holds an OFF state in a state before a load exceeding a set value is connected to said storage battery and interrupts supply of electric power from said storage battery to said monitoring device, and a switch drive circuit that detects a reduction in terminal voltage of said storage battery that occurs when said load is connected to said storage battery, and sets said main switch to an ON state.

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