Battery tester capable of identifying faulty battery post adapters

• US 7,642,786 B2
• Filed: 05/31/2005
• Issued: 01/05/2010
• Est. Priority Date: 06/01/2004
• Status: Active Grant

• Current Assignee: Midtronics Incorporated
• Original Assignee: Midtronics Incorporated
• Inventors: Philbrook, John S.
• Primary Examiner(s): Assouad; Patrick J
• Assistant Examiner(s): DIAO, M BAYE
• Application Number:
  US11/141,234
• Publication Number:
  US 20050264296A1
• Time in Patent Office: 1,680 Days
• Field of Search: 324/426, 324/111, 324/411
• US Class Current: 324/426
• CPC Class Codes: G01R 31/385 Arrangements for measuring battery or accumulator variables for monitoring G01R31/382

Abstract

An electronic battery tester for testing a storage battery. The tester includes a first connector configured to electrically couple to a first terminal of the battery via a first battery post adapter and a second connector configured to electrically couple to a second terminal of the battery via a second battery post adapter. The tester also includes an input configured to receive a battery-post-adapter-connection indicator. Test circuitry, which is coupled to the input, upon receipt of the battery-post-adapter-connection indicator, determines whether or not the first battery post adapter and the second battery post adapter are faulty.

Claims

1. A method of testing a storage battery having a first terminal and a second terminal, the first terminal being coupled to a first battery post adapter and the second terminal being coupled to a second battery post adapter, the method comprising:

(a) measuring a voltage of the battery between the first battery post adapter and the second battery post adapter;

(b) measuring a conductance of the battery from the first battery post adapter and the second battery post adapter to thereby determine a measured cold cranking amp (CCA) value for the battery; and

(c) comparing the measured battery voltage to a rated voltage of the battery and comparing the measured battery CCA with a rated CCA of the battery; and

(d) determining a condition of the first battery post adapter and the second battery post adapter based on the comparisons carried out in step (c).

2. The method of claim 1 and further comprising repeating steps (a) through (d), a predetermined number of times, to verify the condition of the first battery post adapter and the second battery post adapter.

3. The method of claim 1 wherein the determining step (d) comprises determining that the first battery post adapter and the second battery post adapter are faulty if the measured battery voltage is approximately equal to the rated battery voltage and the measured battery CCA is substantially lower than the rated battery CCA.

4. The method of claim 1 and further comprising providing output information relating to a condition of the first battery post adapter and the second battery post adapter.

5. The method of claim 4 wherein the output information further comprises customer service contact information.