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Method and apparatus for automotive and other battery testing

  • US 6,268,732 B1
  • Filed: 07/13/2000
  • Issued: 07/31/2001
  • Est. Priority Date: 09/30/1998
  • Status: Expired due to Term
First Claim
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1. A method of testing applicable to the routine testing of batteries for automotive vehicles and like batteries, the method comprising:

  • a) providing a battery to be tested;

    b) providing a test electrical load for connection to said battery;

    c) providing a control circuit adapted to connect said load to said battery for an interval of less than one second; and

    d) providing analysis means adapted to analyse the voltage profile or related aspects of said battery'"'"'s reaction to said load over said interval;

    characterised by e) causing said load to cause said battery, at least for batteries in good condition, to deliver a transient macro-current which is comparable to currents arising in use of the battery;

    f) causing said control circuit to connect said load to said battery for a transient time interval lying in the range of up to 100 milliseconds; and

    g) providing said control circuit as part of a handset apparatus adapted to be operated and connected to said battery in the manner of a testing handset, and said transient macro-current generating an amount of heat in relation to said handset which can be accommodated by apparatus of the handset kind.

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