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:
Jul. 17, 2012
Filed:
Apr. 02, 2008
Michael E. Buckner, Central, SC (US);
Daniel B. Nelson, Anderson, SC (US);
Samuel Boyles, Easley, SC (US);
Umesh Jairamdas Rajani, Anderson, SC (US);
Anthony Thomas Tocco, Easley, SC (US);
Michael E. Buckner, Central, SC (US);
Daniel B. Nelson, Anderson, SC (US);
Samuel Boyles, Easley, SC (US);
Umesh Jairamdas Rajani, Anderson, SC (US);
Anthony Thomas Tocco, Easley, SC (US);
Techtronic Power Tools Technology Limited, Tortola, BV;
Abstract
A battery tester engages a power tool battery and includes a housing having a cavity for receiving a stem of the power tool battery. The battery tester has a plurality of electrically conductive contacts disposed in the cavity and is configured to engage corresponding battery electrodes on the stem. A processor is mounted within the housing and communicates with the battery through the electrically conductive contacts. The processor measures a voltage level of the battery, and a loading circuit electrically loads the battery during measuring. One or more indicators are controlled by the processor. The processor activates the loading circuit for a predetermined period of time to measure a voltage level of the battery while under load, and then activates the indicators to provide a visual indication of remaining battery life. The battery tester is a stand-alone device where housing does not have a motor or a battery charger.