The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 14, 2000
Filed:
Nov. 05, 1997
Surender K Makhija, Brookfield, WI (US);
STAT Engineering Company, L.L.C., Waukesha, WI (US);
Abstract
An electronic battery testing device and a method for testing batteries are provided. Device applies a small first fixed load and measures the voltage at the end of the first fixed load and then applies a medium second fixed load and measures the voltage at the end of the second fixed load. The device then analyzes the condition of the battery based on these voltage values. A method is also provided involving: (a) applying a first small fixed load to a battery, (b) measuring the voltage at the end of the first small fixed load, (c) applying a second medium fixed load to the battery, (d) measuring the voltage of the battery at the end of the second medium fixed load, and (e) analyzing the condition of the battery based on the voltage values. Preferably the method also involves evaluating the recovery voltage wave form after the second medium load. The device and method allowed for evaluation of deeply discharged batteries without the need to charge the batteries and also allows for the test equipment to be in hand held form.