System and method for monitoring electrolyte levels in a battery

  • US 7,812,613 B2
  • Filed: 06/14/2004
  • Issued: 10/12/2010
  • Est. Priority Date: 06/12/2003
  • Status: Active Grant
First Claim
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1. A system for monitoring the electrolyte level in a battery having one or more separators between positive and negative plates in a cell of the battery, the one or more separators having a top which is at a level that is higher than a top of the plates, said system comprising:

  • a measuring device, suitable to be located in said battery, configured to detect when the electrolyte level in the battery falls below a first level which is above the tops of the separators in said battery; and

    a controller, in electrical communication with the measuring device, configured to (i) receive a signal from the measuring device indicating when the electrolyte level in the battery has fallen below said first level, (ii) introduce a wait-period after the signal is received, and (iii) enable an indicator to indicate that the electrolyte in the battery should be refilled after the wait-period expires;

    wherein said wait-period represents an appropriate time it takes the electrolyte level to fall from said first level to a second level which is below the tops of said separators and above the tops of said plates.

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